<?xml version="1.0" encoding="us-ascii"?>
<!--Generated by Disclosure Solutions PROFILE 3.2.0.0 Copyright 1995 - 2015 Thomson Reuters Accelus. All rights reserved.-->
<xs:schema targetNamespace="http://emergentbiosolutions.com/20141231" elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:ebs="http://emergentbiosolutions.com/20141231" xmlns:us-types="http://fasb.org/us-types/2014-01-31" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:invest="http://xbrl.sec.gov/invest/2013-01-31" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:dei="http://xbrl.sec.gov/dei/2014-01-31">
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xlink:type="simple" xlink:href="ebs-20141231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="ebs-20141231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="ebs-20141231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="ebs-20141231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:roleType roleURI="http://emergentbiosolutions.com/role/DocumentAndEntityInformation" id="DocumentAndEntityInformation">
        <link:definition>000100 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/ConsolidatedBalanceSheets" id="ConsolidatedBalanceSheets">
        <link:definition>010000 - Statement - Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/ConsolidatedBalanceSheetsParenthetical" id="ConsolidatedBalanceSheetsParenthetical">
        <!--Parent Role: Consolidated Balance Sheets-->
        <link:definition>010100 - Statement - Consolidated Balance Sheets (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/ConsolidatedStatementsOfOperations" id="ConsolidatedStatementsOfOperations">
        <link:definition>020000 - Statement - Consolidated Statements of Operations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/ConsolidatedStatementsOfComprehensiveIncome" id="ConsolidatedStatementsOfComprehensiveIncome">
        <link:definition>030000 - Statement - Consolidated Statements of Comprehensive Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/ConsolidatedStatementsOfCashFlows" id="ConsolidatedStatementsOfCashFlows">
        <link:definition>040000 - Statement - Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/ConsolidatedStatementOfChangesInStockholdersEquity" id="ConsolidatedStatementOfChangesInStockholdersEquity">
        <link:definition>050000 - Statement - Consolidated Statement of Changes in Stockholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/NatureOfBusinessAndOrganization" id="NatureOfBusinessAndOrganization">
        <link:definition>060100 - Disclosure - Nature of the business and organization</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/SummaryOfSignificantAccountingPolicies" id="SummaryOfSignificantAccountingPolicies">
        <link:definition>060200 - Disclosure - Summary of significant accounting policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/Acquisitions" id="Acquisitions">
        <link:definition>060300 - Disclosure - Acquisitions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/FairValueMeasurements" id="FairValueMeasurements">
        <link:definition>060400 - Disclosure - Fair value measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/MorphsysCollaborationAgreement" id="MorphsysCollaborationAgreement">
        <link:definition>060500 - Disclosure - MorphSys collaboration agreement</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/AccountsReceivable" id="AccountsReceivable">
        <link:definition>060600 - Disclosure - Accounts receivable</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/Inventories" id="Inventories">
        <link:definition>060700 - Disclosure - Inventories</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/PropertyPlantAndEquipment" id="PropertyPlantAndEquipment">
        <link:definition>060800 - Disclosure - Property, plant and equipment</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/InprocessResearchAndDevelopmentAndGoodwill" id="InprocessResearchAndDevelopmentAndGoodwill">
        <link:definition>060900 - Disclosure - In-process research and development and goodwill</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/LongtermDebt" id="LongtermDebt">
        <link:definition>061000 - Disclosure - Long-term debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/StockholdersEquity" id="StockholdersEquity">
        <link:definition>061100 - Disclosure - Stockholders' equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/IncomeTaxes" id="IncomeTaxes">
        <link:definition>061200 - Disclosure - Income taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/Restructuring" id="Restructuring">
        <link:definition>061300 - Disclosure - Restructuring</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/AssetsHeldForSale" id="AssetsHeldForSale">
        <link:definition>061400 - Disclosure - Assets held for sale</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/PurchaseCommitment" id="PurchaseCommitment">
        <link:definition>061500 - Disclosure - Purchase commitment</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/KSavingsPlan" id="KSavingsPlan">
        <link:definition>061600 - Disclosure - 401(k) savings plan</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/Leases" id="Leases">
        <link:definition>061700 - Disclosure - Leases</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/BusinessInterruptionInsuranceRecovery" id="BusinessInterruptionInsuranceRecovery">
        <link:definition>061800 - Disclosure - Business interruption insurance recovery</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/RelatedPartyTransactions" id="RelatedPartyTransactions">
        <link:definition>061900 - Disclosure - Related party transactions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/EarningsPerShare" id="EarningsPerShare">
        <link:definition>062000 - Disclosure - Earnings per share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/SegmentInformation" id="SegmentInformation">
        <link:definition>062100 - Disclosure - Segment information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/QuarterlyFinancialDataUnaudited" id="QuarterlyFinancialDataUnaudited">
        <link:definition>062200 - Disclosure - Quarterly financial data (unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/SubsequentEvents" id="SubsequentEvents">
        <link:definition>062300 - Disclosure - Subsequent events</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/SummaryOfSignificantAccountingPoliciesPolicies" id="SummaryOfSignificantAccountingPoliciesPolicies">
        <!--Parent Role: Summary of significant accounting policies-->
        <link:definition>070200 - Disclosure - Summary of significant accounting policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/SummaryOfSignificantAccountingPoliciesTables" id="SummaryOfSignificantAccountingPoliciesTables">
        <!--Parent Role: Summary of significant accounting policies-->
        <link:definition>080200 - Disclosure - Summary of significant accounting policies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/AcquisitionsTables" id="AcquisitionsTables">
        <!--Parent Role: Acquisitions-->
        <link:definition>080300 - Disclosure - Acquisitions (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/FairValueMeasurementsTables" id="FairValueMeasurementsTables">
        <!--Parent Role: Fair value measurements-->
        <link:definition>080400 - Disclosure - Fair value measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/AccountsReceivableTables" id="AccountsReceivableTables">
        <!--Parent Role: Accounts receivable-->
        <link:definition>080600 - Disclosure - Accounts receivable (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/InventoriesTables" id="InventoriesTables">
        <!--Parent Role: Inventories-->
        <link:definition>080700 - Disclosure - Inventories (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/PropertyPlantAndEquipmentTables" id="PropertyPlantAndEquipmentTables">
        <!--Parent Role: Property, plant and equipment-->
        <link:definition>080800 - Disclosure - Property, plant and equipment (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/IntangibleAssetsInprocessResearchAndDevelopmentAndGoodwillTables" id="IntangibleAssetsInprocessResearchAndDevelopmentAndGoodwillTables">
        <!--Parent Role: In-process research and development and goodwill-->
        <link:definition>080900 - Disclosure - Intangible assets, in-process research and development and goodwill (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/StockholdersEquityTables" id="StockholdersEquityTables">
        <!--Parent Role: Stockholders' equity-->
        <link:definition>081100 - Disclosure - Stockholders' equity (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/IncomeTaxesTables" id="IncomeTaxesTables">
        <!--Parent Role: Income taxes-->
        <link:definition>081200 - Disclosure - Income taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/RestructuringTables" id="RestructuringTables">
        <!--Parent Role: Restructuring-->
        <link:definition>081300 - Disclosure - Restructuring (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/LeasesTables" id="LeasesTables">
        <!--Parent Role: Leases-->
        <link:definition>081700 - Disclosure - Leases (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/EarningsPerShareTables" id="EarningsPerShareTables">
        <!--Parent Role: Earnings per share-->
        <link:definition>082000 - Disclosure - Earnings per share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/SegmentInformationTables" id="SegmentInformationTables">
        <!--Parent Role: Segment information-->
        <link:definition>082100 - Disclosure - Segment information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/QuarterlyFinancialDataUnauditedTables" id="QuarterlyFinancialDataUnauditedTables">
        <!--Parent Role: Quarterly financial data (unaudited)-->
        <link:definition>082200 - Disclosure - Quarterly financial data (unaudited) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/NatureOfBusinessAndOrganizationDetails" id="NatureOfBusinessAndOrganizationDetails">
        <!--Parent Role: Nature of the business and organization-->
        <link:definition>090100 - Disclosure - Nature of the business and organization (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/SummaryOfSignificantAccountingPoliciesDetails" id="SummaryOfSignificantAccountingPoliciesDetails">
        <!--Parent Role: Summary of significant accounting policies-->
        <link:definition>090200 - Disclosure - Summary of significant accounting policies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/AcquisitionsDetails" id="AcquisitionsDetails">
        <!--Parent Role: Acquisitions-->
        <link:definition>090300 - Disclosure - Acquisitions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/FairValueMeasurementsDetails" id="FairValueMeasurementsDetails">
        <!--Parent Role: Fair value measurements-->
        <link:definition>090400 - Disclosure - Fair value measurements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/MorphosysCollaborationAgreementDetails" id="MorphosysCollaborationAgreementDetails">
        <!--Parent Role: MorphSys collaboration agreement-->
        <link:definition>090500 - Disclosure - MorphoSys Collaboration Agreement (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/AccountsReceivableDetails" id="AccountsReceivableDetails">
        <!--Parent Role: Accounts receivable-->
        <link:definition>090600 - Disclosure - Accounts receivable (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/InventoriesDetails" id="InventoriesDetails">
        <!--Parent Role: Inventories-->
        <link:definition>090700 - Disclosure - Inventories (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/PropertyPlantAndEquipmentDetails" id="PropertyPlantAndEquipmentDetails">
        <!--Parent Role: Property, plant and equipment-->
        <link:definition>090800 - Disclosure - Property, plant and equipment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/InprocessResearchAndDevelopmentAndGoodwillDetails" id="InprocessResearchAndDevelopmentAndGoodwillDetails">
        <!--Parent Role: In-process research and development and goodwill-->
        <link:definition>090900 - Disclosure - In-process research and development and goodwill (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/LongtermDebtDetails" id="LongtermDebtDetails">
        <!--Parent Role: Long-term debt-->
        <link:definition>091000 - Disclosure - Long-term debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/StockholdersEquityDetails" id="StockholdersEquityDetails">
        <!--Parent Role: Stockholders' equity-->
        <link:definition>091100 - Disclosure - Stockholders' equity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/StockholdersEquitySharebasedCompensationArrangementsBySharebasedPaymentAwardDetails" id="StockholdersEquitySharebasedCompensationArrangementsBySharebasedPaymentAwardDetails">
        <!--Parent Role: Stockholders' equity-->
        <link:definition>091102 - Disclosure - Stockholders' equity, Share-based Compensation Arrangements by Share-based Payment Award (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/IncomeTaxesDetails" id="IncomeTaxesDetails">
        <!--Parent Role: Income taxes-->
        <link:definition>091200 - Disclosure - Income taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/IncomeTaxesIncomeTaxContingencyDetails" id="IncomeTaxesIncomeTaxContingencyDetails">
        <!--Parent Role: Income taxes-->
        <link:definition>091202 - Disclosure - Income taxes, Income Tax Contingency (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/RestructuringDetails" id="RestructuringDetails">
        <!--Parent Role: Restructuring-->
        <link:definition>091300 - Disclosure - Restructuring (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/AssetsHeldForSaleDetails" id="AssetsHeldForSaleDetails">
        <!--Parent Role: Assets held for sale-->
        <link:definition>091400 - Disclosure - Assets held for sale (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/PurchaseCommitmentDetails" id="PurchaseCommitmentDetails">
        <!--Parent Role: Purchase commitment-->
        <link:definition>091500 - Disclosure - Purchase commitment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/KSavingsPlanDetails" id="KSavingsPlanDetails">
        <!--Parent Role: 401(k) savings plan-->
        <link:definition>091600 - Disclosure - 401(k) savings plan (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/LeasesDetails" id="LeasesDetails">
        <!--Parent Role: Leases-->
        <link:definition>091700 - Disclosure - Leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/BusinessInterruptionInsuranceRecoveryDetails" id="BusinessInterruptionInsuranceRecoveryDetails">
        <!--Parent Role: Business interruption insurance recovery-->
        <link:definition>091800 - Disclosure - Business interruption insurance recovery (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/RelatedPartyTransactionsDetails" id="RelatedPartyTransactionsDetails">
        <!--Parent Role: Related party transactions-->
        <link:definition>091900 - Disclosure - Related party transactions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/EarningsPerShareDetails" id="EarningsPerShareDetails">
        <!--Parent Role: Earnings per share-->
        <link:definition>092000 - Disclosure - Earnings per share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/SegmentInformationDetails" id="SegmentInformationDetails">
        <!--Parent Role: Segment information-->
        <link:definition>092100 - Disclosure - Segment information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://emergentbiosolutions.com/role/QuarterlyFinancialDataUnauditedDetails" id="QuarterlyFinancialDataUnauditedDetails">
        <!--Parent Role: Quarterly financial data (unaudited)-->
        <link:definition>092200 - Disclosure - Quarterly financial data (unaudited) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:import namespace="http://fasb.org/us-gaap/2014-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/dei/2014-01-31" schemaLocation="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/country/2013-01-31" schemaLocation="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/currency/2014-01-31" schemaLocation="http://xbrl.sec.gov/currency/2014/currency-2014-01-31.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/exch/2014-01-31" schemaLocation="http://xbrl.sec.gov/exch/2014/exch-2014-01-31.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/naics/2011-01-31" schemaLocation="http://xbrl.sec.gov/naics/2011/naics-2011-01-31.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" />
  <xs:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xs:import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
  <xs:import namespace="http://xbrl.sec.gov/stpr/2011-01-31" schemaLocation="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd" />
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xs:import namespace="http://www.xbrl.org/2004/ref" schemaLocation="http://www.xbrl.org/2004/ref-2004-08-10.xsd" />
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xs:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <xs:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <xs:import namespace="http://fasb.org/us-types/2014-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2014/elts/us-types-2014-01-31.xsd" />
  <xs:import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
  <xs:element name="ContractManufacturing" id="ebs_ContractManufacturing" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="NumberOfBusinessUnits" id="ebs_NumberOfBusinessUnits" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="InProcessResearchAndDevelopment" id="ebs_InProcessResearchAndDevelopment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="BiosciencesMember" id="ebs_BiosciencesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="BiodefenseMember" id="ebs_BiodefenseMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="EBSForeignJurisdictionsMember" id="ebs_EBSForeignJurisdictionsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="UnrecognizedTaxBenefitsNoncurrent" id="ebs_UnrecognizedTaxBenefitsNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="UnrecognizedTaxBenefitsCurrent" id="ebs_UnrecognizedTaxBenefitsCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="UnrecognizedTaxBenefitsAmountExpectedToBeReversedWithinNextTwelveMonths" id="ebs_UnrecognizedTaxBenefitsAmountExpectedToBeReversedWithinNextTwelveMonths" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="AdjustedNetLoss" id="ebs_AdjustedNetLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="OperatingLossCarryforwardsPeriodOfChangeInNatureAndConductOfBusinessForChangingLifeOfOperatingLossCarryforwards" id="ebs_OperatingLossCarryforwardsPeriodOfChangeInNatureAndConductOfBusinessForChangingLifeOfOperatingLossCarryforwards" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="DeferredIncomeTaxExpenseBenefitBeforePurchasePriceAdjustment" id="ebs_DeferredIncomeTaxExpenseBenefitBeforePurchasePriceAdjustment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="EBSCanadianFederalScientificResearchAndDevelopmentMember" id="ebs_EBSCanadianFederalScientificResearchAndDevelopmentMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="EBSManitobaScientificResearchAndExperimentalDevelopmentMember" id="ebs_EBSManitobaScientificResearchAndExperimentalDevelopmentMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="StockRepurchasePlanOf2012Member" id="ebs_StockRepurchasePlanOf2012Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="TreasuryStockAbstract" id="ebs_TreasuryStockAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchasesSalesIssues" id="ebs_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchasesSalesIssues" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="ContingentValueRightsFairValueDisclosure" id="ebs_ContingentValueRightsFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="MoneyMarketFundsFairValueDisclosure" id="ebs_MoneyMarketFundsFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="PaymentOfContingentObligations" id="ebs_PaymentOfContingentObligations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="RisksAndUncertaintiesPolicyTextBlock" id="ebs_RisksAndUncertaintiesPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ContingentPurchaseConsiderationObligationsPolicyTextBlock" id="ebs_ContingentPurchaseConsiderationObligationsPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PropertyPlantAndEquipmentUsefulLivesTableTextBlockTextBlock" id="ebs_PropertyPlantAndEquipmentUsefulLivesTableTextBlockTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ContingentValueRightsCurrentPortion" id="ebs_ContingentValueRightsCurrentPortion" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="ProvisionForChargebacks" id="ebs_ProvisionForChargebacks" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="ContingentPurchaseConsiderationNetOfCurrentPortion" id="ebs_ContingentPurchaseConsiderationNetOfCurrentPortion" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="ProvisionForFairValueOfContingentValueRights" id="ebs_ProvisionForFairValueOfContingentValueRights" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="ProceedsFromBorrowingsOnLongTermIndebtednessAndLineOfCredit" id="ebs_ProceedsFromBorrowingsOnLongTermIndebtednessAndLineOfCredit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="ContingentValueRightPayment" id="ebs_ContingentValueRightPayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="WriteOffOfBankFees" id="ebs_WriteOffOfBankFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="ProvisionForChargebacksChargedToEarnings" id="ebs_ProvisionForChargebacksChargedToEarnings" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="NoncontrollingInterestNoncashDevelopmentExpensesFromJointVenture" id="ebs_NoncontrollingInterestNoncashDevelopmentExpensesFromJointVenture" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="DefinedContributionPlanPercentageOfEmployeeGrossSalarySubjectToEmployerMatching" id="ebs_DefinedContributionPlanPercentageOfEmployeeGrossSalarySubjectToEmployerMatching" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="EpduRestructuringPlanMember" id="ebs_EpduRestructuringPlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="RevolvingCreditLoanDatedDecember2013DueInDecember2018Member" id="ebs_RevolvingCreditLoanDatedDecember2013DueInDecember2018Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="CreditAgreementMember" id="ebs_CreditAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ConvertibleSeniorNotesDue2021Member" id="ebs_ConvertibleSeniorNotesDue2021Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="EbsBamlTermLoanMember" id="ebs_EbsBamlTermLoanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="StateOfMarylandAndMontgomeryCountyMember" id="ebs_StateOfMarylandAndMontgomeryCountyMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="DebtInstrumentCovenantSeniorLeverageRatio" id="ebs_DebtInstrumentCovenantSeniorLeverageRatio" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="DebtInstrumentNumberOfEquityInstruments" id="ebs_DebtInstrumentNumberOfEquityInstruments" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="NumberOfLendingInstitutions" id="ebs_NumberOfLendingInstitutions" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ProceedsFromBorrowingsOnLongTermIndebtnessAndLineOfCredit" id="ebs_ProceedsFromBorrowingsOnLongTermIndebtnessAndLineOfCredit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="DebtInstrumentCovenantMinimumCashAndLiquidInvestmentsBalance" id="ebs_DebtInstrumentCovenantMinimumCashAndLiquidInvestmentsBalance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="DebtInstrumentCovenantDebtCoverageRatio" id="ebs_DebtInstrumentCovenantDebtCoverageRatio" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ProjectCostsToBeExpendedAtMontgomeryCountySite" id="ebs_ProjectCostsToBeExpendedAtMontgomeryCountySite" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="DebtInstrumentCovenantLeverageRatio" id="ebs_DebtInstrumentCovenantLeverageRatio" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="OperatingLeasesFutureMinimumPaymentsDueNetOfFutureSubleaseIncome" id="ebs_OperatingLeasesFutureMinimumPaymentsDueNetOfFutureSubleaseIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="OperatingLeasesTermOfRenewalOption" id="ebs_OperatingLeasesTermOfRenewalOption" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="OfficeAndLaboratorySpaceSeattleWashingtonMember" id="ebs_OfficeAndLaboratorySpaceSeattleWashingtonMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="OfficeAndLaboratorySpaceMunichGermanyMember" id="ebs_OfficeAndLaboratorySpaceMunichGermanyMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="OfficeAndLaboratorySpaceRockvilleMarylandMember" id="ebs_OfficeAndLaboratorySpaceRockvilleMarylandMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="OperatingLeasesRentExpenseAnnualEscalationPercentage" id="ebs_OperatingLeasesRentExpenseAnnualEscalationPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="OfficeSpaceWokinghamEnglandMember" id="ebs_OfficeSpaceWokinghamEnglandMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndAfter" id="ebs_FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndAfter" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="BiosciencesTherapeuticsMember" id="ebs_BiosciencesTherapeuticsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="RsdlMember" id="ebs_RsdlMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ManufacturingAgreementMember" id="ebs_ManufacturingAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="MarketedProductsMember" id="ebs_MarketedProductsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="BiodefenseProductsMember" id="ebs_BiodefenseProductsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="GoodwillCostBasisAbstract" id="ebs_GoodwillCostBasisAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="BiosciencesContractsManufacturingMember" id="ebs_BiosciencesContractsManufacturingMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="BiodefenseTherapeuticsMember" id="ebs_BiodefenseTherapeuticsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="BiodefenseMedicalDevicesMember" id="ebs_BiodefenseMedicalDevicesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="BusinessInterruptionInsuranceRecoveryAbstract" id="ebs_BusinessInterruptionInsuranceRecoveryAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="BusinessInterruptionInsuranceRecoveryTextBlock" id="ebs_BusinessInterruptionInsuranceRecoveryTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="BusinessInterruptionInsuranceRevenue" id="ebs_BusinessInterruptionInsuranceRevenue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="CapitalizedInterestAbstract" id="ebs_CapitalizedInterestAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="NumberOfDosesOfFdaLicensedAnthraxVaccineToBeSuppliedUnderContract" id="ebs_NumberOfDosesOfFdaLicensedAnthraxVaccineToBeSuppliedUnderContract" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PercentageOfTotalSpendingInCollaborationUsedToDetermineReceivableRevenuePayableAndExpenseDuringPeriod" id="ebs_PercentageOfTotalSpendingInCollaborationUsedToDetermineReceivableRevenuePayableAndExpenseDuringPeriod" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="EmergentBiosolutionsInc2006StockIncentivePlanMember" id="ebs_EmergentBiosolutionsInc2006StockIncentivePlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="RestrictedCashAbstract" id="ebs_RestrictedCashAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PeriodOfContractualAgreement" id="ebs_PeriodOfContractualAgreement" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ExercisePriceOfOptionAsPercentageOfFairMarketValueAtGrantDateMinimum" id="ebs_ExercisePriceOfOptionAsPercentageOfFairMarketValueAtGrantDateMinimum" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="RestrictedStockUnitConversionRatio" id="ebs_RestrictedStockUnitConversionRatio" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardContractualLifeOfAwards" id="ebs_ShareBasedCompensationArrangementByShareBasedPaymentAwardContractualLifeOfAwards" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisePeriod" id="ebs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisePeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="NumberOfStockBasedEmployeeCompensationPlans" id="ebs_NumberOfStockBasedEmployeeCompensationPlans" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="EmergentPlansMember" id="ebs_EmergentPlansMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="EmergentBiosolutionsEmployeeStockOptionPlanMember" id="ebs_EmergentBiosolutionsEmployeeStockOptionPlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="DocumentAndEntityInformationAbstract" id="ebs_DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ShareBasedCompensationArrangementEquityInstrumentsOtherThanOptionsOutstandingAggregateIntrinsicValue" id="ebs_ShareBasedCompensationArrangementEquityInstrumentsOtherThanOptionsOutstandingAggregateIntrinsicValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="EmployeeStockPurchasePlanMember" id="ebs_EmployeeStockPurchasePlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="EmployeeStockPurchasePlanThresholdLimitForCommonStockOwnershipToBeIneligibleToParticipateInEsppPercentage" id="ebs_EmployeeStockPurchasePlanThresholdLimitForCommonStockOwnershipToBeIneligibleToParticipateInEsppPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="EmployeeStockPurchasePlanNumberOfPlanPeriods" id="ebs_EmployeeStockPurchasePlanNumberOfPlanPeriods" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ShareBasedCompensationArrangementShareBasedPaymentAwardAwardsVestedInPeriodFairValue" id="ebs_ShareBasedCompensationArrangementShareBasedPaymentAwardAwardsVestedInPeriodFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="CangeneMember" id="ebs_CangeneMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="HppdMember" id="ebs_HppdMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="EvolvaHoldingSA035Member" id="ebs_EvolvaHoldingSA035Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="EBSSalesBasedRoyaltyPayments" id="ebs_EBSSalesBasedRoyaltyPayments" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="PurchasePriceAbstract" id="ebs_PurchasePriceAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="PurchasePriceAllocationAbstract" id="ebs_PurchasePriceAllocationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ContingentConsiderationPercentageOfNetSales" id="ebs_ContingentConsiderationPercentageOfNetSales" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="UsGaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAccruedLiabilities" id="ebs_UsGaapBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAccruedLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesRoyaltyProvision" id="ebs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesRoyaltyProvision" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesProvisionForChargebacks" id="ebs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesProvisionForChargebacks" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIncomeTaxReceivable" id="ebs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIncomeTaxReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInProcessResearchAndDevelopment" id="ebs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInProcessResearchAndDevelopment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="AmortizationPeriodOfStepUpAdjustment" id="ebs_AmortizationPeriodOfStepUpAdjustment" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="BiodefenseIntangibleAssetMember" id="ebs_BiodefenseIntangibleAssetMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ResearchAndDevelopmentContractCosts" id="ebs_ResearchAndDevelopmentContractCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="ContingentValueRightsBasedOnTheNovationOfTheContract" id="ebs_ContingentValueRightsBasedOnTheNovationOfTheContract" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="ContingentValueRightsBasedOnTheAchievementOfCertainDevelopment" id="ebs_ContingentValueRightsBasedOnTheAchievementOfCertainDevelopment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="ContingentValueRightsBasedOnTheRegulatoryFilingMilestones" id="ebs_ContingentValueRightsBasedOnTheRegulatoryFilingMilestones" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="MorphosysCollaborationAgreementAbstract" id="ebs_MorphosysCollaborationAgreementAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="MorphosysMember" id="ebs_MorphosysMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="AllocationOfNonRefundableProceedsToLicenseUnit" id="ebs_AllocationOfNonRefundableProceedsToLicenseUnit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="TieredRoyaltyObligationSpecifiedAsPercentage" id="ebs_TieredRoyaltyObligationSpecifiedAsPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="AdditionalContingentPayment" id="ebs_AdditionalContingentPayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="AllocationOfNonRefundableProceedsToUnitsOfAccounting" id="ebs_AllocationOfNonRefundableProceedsToUnitsOfAccounting" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="NonRefundableReceipt" id="ebs_NonRefundableReceipt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="NumberOfUnitsOfAccounting" id="ebs_NumberOfUnitsOfAccounting" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PresentValueFactorUsedForEstimatingSellingPriceOfLicense" id="ebs_PresentValueFactorUsedForEstimatingSellingPriceOfLicense" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ReductionOfResearchAndDevelopmentExpense" id="ebs_ReductionOfResearchAndDevelopmentExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="MaximumFundingRequirementCap" id="ebs_MaximumFundingRequirementCap" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="FirstContingentPaymentBasedUponDevelopmentAndRegulatoryMilestones" id="ebs_FirstContingentPaymentBasedUponDevelopmentAndRegulatoryMilestones" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="AllocationOfNonRefundableProceedsToUndeliveredItemsUnit" id="ebs_AllocationOfNonRefundableProceedsToUndeliveredItemsUnit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="SecondContingentPaymentReceivedBasedUponDevelopmentAndRegulatoryMilestones" id="ebs_SecondContingentPaymentReceivedBasedUponDevelopmentAndRegulatoryMilestones" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="EBSNorwoodLaboratoriesPurchaseCommitment" id="ebs_EBSNorwoodLaboratoriesPurchaseCommitment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
</xs:schema>
