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        <link:usedOn>link:calculationLink</link:usedOn>
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        <link:usedOn>link:presentationLink</link:usedOn>
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  <xsd:element id="ebs_UnrecognizedTaxBenefitsCurrent" name="UnrecognizedTaxBenefitsCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ebs_UnrecognizedTaxBenefitsNoncurrent" name="UnrecognizedTaxBenefitsNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ebs_UpfrontPayments" name="UpfrontPayments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ebs_ValueofContract" name="ValueofContract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ebs_VaxchoraMember" name="VaxchoraMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ebs_VivotifMember" name="VivotifMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
