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  <xsd:element id="abus_NonCashRoyaltyRevenueRelatedToSaleOfFutureRoyalties" name="NonCashRoyaltyRevenueRelatedToSaleOfFutureRoyalties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
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  <xsd:element id="abus_NoncontrollingInterestMaximumOwnershipPercentagebyNoncontrollingOwners" name="NoncontrollingInterestMaximumOwnershipPercentagebyNoncontrollingOwners" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="abus_NoncontrollingInterestOwnershipPercentageByNoncontrollingOwnersAfterConversion" name="NoncontrollingInterestOwnershipPercentageByNoncontrollingOwnersAfterConversion" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
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  <xsd:element id="abus_NumberOfExecutiveOfficersGrantedOptionsWithNewAppointments" name="NumberOfExecutiveOfficersGrantedOptionsWithNewAppointments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
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  <xsd:element id="abus_PremiumonClosingStockPrice" name="PremiumonClosingStockPrice" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
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  <xsd:element id="abus_PropertyPlantAndEquipmentEstimatedUsefulLivesTableTextBlock" name="PropertyPlantAndEquipmentEstimatedUsefulLivesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="abus_ProtivaOptionPlanMember" name="ProtivaOptionPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="abus_ResearchAndDevelopmentServicesMember" name="ResearchAndDevelopmentServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="abus_RoivantSciencesLtdMember" name="RoivantSciencesLtdMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="abus_RoyaltyGuaranteesCommitmentsPercentage" name="RoyaltyGuaranteesCommitmentsPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="abus_RoyaltyInterestSoldMaximumRoyaltiesForBuyer" name="RoyaltyInterestSoldMaximumRoyaltiesForBuyer" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="abus_RoyaltyInterestSoldPercentageOfSalesAnnualRevenueThresholdOfHighestTier" name="RoyaltyInterestSoldPercentageOfSalesAnnualRevenueThresholdOfHighestTier" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="abus_RoyaltyPayable" name="RoyaltyPayable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
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  <xsd:element abstract="true" id="abus_STINGDrugCandidateMember" name="STINGDrugCandidateMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="abus_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOptionsVestedInPeriodWeightedAverageFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOptionsVestedInPeriodWeightedAverageFairValue" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="abus_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsExercisesinPeriodFairValue" name="SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsExercisesinPeriodFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="abus_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsOutstandingFairValuePrice" name="SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsOutstandingFairValuePrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="abus_StrightlineFixedLeaseCost" name="StrightlineFixedLeaseCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="abus_SubleaseBurnabyFacilityMember" name="SubleaseBurnabyFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="abus_TalonTherapeuticsMember" name="TalonTherapeuticsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="abus_TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense" name="TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="abus_TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateDeferredTaxLiabilityProvisionalIncomeTaxBenefit" name="TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateDeferredTaxLiabilityProvisionalIncomeTaxBenefit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="abus_TermofCollaborationAgreement" name="TermofCollaborationAgreement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="abus_TotalsiteconsolidationexpenseMember" name="TotalsiteconsolidationexpenseMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="abus_TransactionCostsRelatedToSaleOfFutureRoyalties" name="TransactionCostsRelatedToSaleOfFutureRoyalties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="abus_USDTermDepositMember" name="USDTermDepositMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="abus_USGovernmentAgencyBondsMember" name="USGovernmentAgencyBondsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="abus_USGovernmentBondsMember" name="USGovernmentBondsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="abus_VestedMember" name="VestedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="abus_WeightedAverageNumberOfCommonSharesAbstract" name="WeightedAverageNumberOfCommonSharesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="abus_WellsFargoMember" name="WellsFargoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="abus_WhollyOwnedSubsidiariesIncludedinFinancialStatements" name="WhollyOwnedSubsidiariesIncludedinFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
</xsd:schema>
