<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2022v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2023-11-14T12:23:27-06:00</ReturnTs>
    <TaxPeriodEndDt>2022-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>390859910</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>BAKER TILLY US LLP</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>1 HIGHWOOD DRIVE</AddressLine1Txt>
        <CityNm>TEWKSBURY</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>01876</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2022-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>222473000</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>INTERNATIONAL SOCIETY FOR INFECTIOUS</BusinessNameLine1Txt>
        <BusinessNameLine2Txt>DISEASES INC</BusinessNameLine2Txt>
      </BusinessName>
      <BusinessNameControlTxt>INTE</BusinessNameControlTxt>
      <PhoneNum>6179255272</PhoneNum>
      <USAddress>
        <AddressLine1Txt>867 BOYLSTON STREET 5TH FLOOR 198</AddressLine1Txt>
        <CityNm>BOSTON</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>02116</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>LINDA MACKINNON</PersonNm>
      <PersonTitleTxt>CEO</PersonTitleTxt>
      <PhoneNum>6179255272</PhoneNum>
      <SignatureDt>2023-11-13</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>LINDA</PersonFirstNm>
        <PersonLastNm>MACKINNON</PersonLastNm>
      </PersonFullName>
      <SSN>999009999</SSN>
    </SigningOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>0</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>MATTHEW KALIL CPA MBA</PreparerPersonNm>
      <PTIN>P01517069</PTIN>
      <PhoneNum>9785575300</PhoneNum>
      <PreparationDt>2023-11-09</PreparationDt>
    </PreparerPersonGrp>
    <AdditionalFilerInformation>
      <TrustedCustomerGrp>
        <TrustedCustomerCd>2</TrustedCustomerCd>
        <AuthenticationAssuranceLevelCd>AAL1</AuthenticationAssuranceLevelCd>
        <IdentityAssuranceLevelCd>IAL1</IdentityAssuranceLevelCd>
      </TrustedCustomerGrp>
    </AdditionalFilerInformation>
    <TaxYr>2022</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="7">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <AddressChangeInd>X</AddressChangeInd>
      <PrincipalOfficerNm>LINDA MACKINNON</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>867 BOYLSTON STREET 5TH FLOOR 1985</AddressLine1Txt>
        <CityNm>BOSTON</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>02116</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>4604465</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>WWW.ISID.ORG</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1983</FormationYr>
      <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      <ActivityOrMissionDesc>EDUCATION PERTAINING TO INFECTIOUS DISEASES.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>9</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>9</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>12</TotalEmployeeCnt>
      <TotalVolunteersCnt>0</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>0</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>1294679</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>656607</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>0</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>1722381</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>341429</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>-27113</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>559817</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>509462</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>2195925</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>2861337</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>16000</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>7500</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>1180149</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>1654990</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>89604</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>2080879</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>2438805</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>3277028</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>4101295</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>-1081103</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>-1239958</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>4197503</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>2622557</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>1049167</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>860696</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>3148336</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>1761861</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <MissionDesc>THE MISSION OF INTERNATIONAL SOCIETY FOR INFECTIOUS DISEASES IS TO SUPPORT HEALTH PROFESSIONALS, NON-GOVERNMENT ORGANIZATIONS, AND GOVERNMENTS AROUND THE WORLD IN THEIR WORK TO PREVENT, INVESTIGATE AND MANAGE INFECTIOUS DISEASE OUTBREAKS WHEN THEY OCCUR, PARTICULARLY IN COUNTRIES THAT HAVE LIMITED RESOURCES AND WHICH DISPROPORTIONATELY BEAR THE BURDEN OF INFECTIOUS DISEASES.</MissionDesc>
      <SignificantNewProgramSrvcInd>0</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>0</SignificantChangeInd>
      <ExpenseAmt>2893208</ExpenseAmt>
      <GrantAmt>7500</GrantAmt>
      <RevenueAmt>2231843</RevenueAmt>
      <Desc>TO INCREASE KNOWLEDGE BASE OF INFECTIOUS DISEASE THROUGH RESEARCH AND TRAINING AND TO ENHANCE PROFESSIONAL DEVELOPMENT OF INDIVIDUALS IN THIS DISCIPLINE. SCIENTIFIC EXCHANGE FELLOWSHIP PROGRAM IS INTENDED TO ALLOW SCIENTISTS FROM DEVELOPING COUNTRIES TO UPDATE THEIR KNOWLEDGE OF NEW TECHNIQUES AND SKILLS IN THE FIELD OF INFECTIOUS DISEASES. THE SMALL GRANTS PROGRAM IS INTENDED TO FOSTER DEVELOPMENT OF YOUNG INFECTIOUS DISEASE PROFESSIONALS IN THE DEVELOPING WORLD.</Desc>
      <TotalProgramServiceExpensesAmt>2893208</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc1039100001">1</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="RetDoc1234500001">1</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>0</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc1040000001">0</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc1040000001">0</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc1040000001">0</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc1040000001">0</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd>0</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc1040000001">1</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc1040000001">0</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc1040000001">0</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc1040000001">0</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc1040000001">0</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc1040000001">1</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">1</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <ForeignOfficeInd>1</ForeignOfficeInd>
      <ForeignActivitiesInd referenceDocumentId="RetDoc1040500001">0</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd referenceDocumentId="RetDoc1040500001">0</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd referenceDocumentId="RetDoc1040500001">1</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>0</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>0</FundraisingActivitiesInd>
      <GamingActivitiesInd>0</GamingActivitiesInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <GrantsToOrganizationsInd>0</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>0</GrantsToIndividualsInd>
      <ScheduleJRequiredInd referenceDocumentId="RetDoc1042400001">1</ScheduleJRequiredInd>
      <TaxExemptBondsInd>0</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>0</PYExcessBenefitTransInd>
      <LoanOutstandingInd>0</LoanOutstandingInd>
      <GrantToRelatedPersonInd>0</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>0</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>0</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>0</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>0</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>0</DeductibleArtContributionInd>
      <TerminateOperationsInd>0</TerminateOperationsInd>
      <PartialLiquidationInd>0</PartialLiquidationInd>
      <DisregardedEntityInd>0</DisregardedEntityInd>
      <RelatedEntityInd>0</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>0</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>0</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>1</ScheduleORequiredInd>
      <IRPDocumentCnt>32</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>1</BackupWthldComplianceInd>
      <EmployeeCnt>12</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>1</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>0</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>0</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>0</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>0</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>0</Form8282PropertyDisposedOfInd>
      <RcvFndsToPayPrsnlBnftCntrctInd>0</RcvFndsToPayPrsnlBnftCntrctInd>
      <PayPremiumsPrsnlBnftCntrctInd>0</PayPremiumsPrsnlBnftCntrctInd>
      <IndoorTanningServicesInd>0</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>0</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>0</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>9</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>9</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>0</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>0</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>0</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>0</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>0</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>0</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>0</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>1</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>1</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>0</OfficerMailingAddressInd>
      <LocalChaptersInd>0</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>1</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>1</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>1</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>1</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>1</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>1</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>1</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>1</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>0</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>MA</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>THE ORGANIZATION</BusinessNameLine1Txt>
        </BusinessName>
        <PhoneNum>6179255272</PhoneNum>
        <USAddress>
          <AddressLine1Txt>867 BOYLSTON STREET 5TH FLOOR 1985</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02116</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <Form990PartVIISectionAGrp>
        <PersonNm>JAFFAR AL-TAWFIQ</PersonNm>
        <TitleTxt>BOARD MEMBER (SINCE 1/1/2022)</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>GONZALO BEARMAN</PersonNm>
        <TitleTxt>BOARD MEMBER (SINCE 1/1/2022)</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>HELENA MALTEZOU</PersonNm>
        <TitleTxt>BOARD MEMBER (SINCE 1/1/2022)</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CONNIE WALYARO</PersonNm>
        <TitleTxt>BOARD MEMBER (SINCE 1/1/2022)</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ROBERT HEYDERMAN</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>NEELIKA MALAVIGE</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ALLISON HOLMES</PersonNm>
        <TitleTxt>PAST PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PAUL TAMBYAH</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>SALLY ROBERTS</PersonNm>
        <TitleTxt>TREASURER &amp; PRESIDENT ELECT</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LINDA MACKINNON</PersonNm>
        <TitleTxt>CEO</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>208331</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>15212</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ANDREW DALECKI</PersonNm>
        <TitleTxt>CFO (UNTIL 11/30/2022)</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>246643</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>13232</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CATHERINE CROWLEY</PersonNm>
        <TitleTxt>DIRECTOR OF BUSINESS DEVELOPMENT</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>118517</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>8661</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JULIA MAXWELL</PersonNm>
        <TitleTxt>DIRECTOR OF DISEASE SURVEILLANCE</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>102748</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>7310</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>676239</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>44415</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>4</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>BOSTON CHILDREN'S HOSPITAL</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>300 LONGWOOD AVENUE</AddressLine1Txt>
            <CityNm>BOSTON</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02115</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PROMED RELATED RESEARCH COLLABORATION</ServicesDesc>
        <CompensationAmt>226250</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>IMPERIAL COLLEGE LONDON</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <ForeignAddress>
            <AddressLine1Txt>LEVEL 3 SHERFIELD BLDG SOUTH KENSI</AddressLine1Txt>
            <CityNm>LONDON SW AZ</CityNm>
            <ProvinceOrStateNm>ENGLAND</ProvinceOrStateNm>
            <CountryCd>UK</CountryCd>
          </ForeignAddress>
        </ContractorAddress>
        <ServicesDesc>PROMED RELATED RESEARCH COLLABORATION</ServicesDesc>
        <CompensationAmt>107228</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>2</CntrctRcvdGreaterThan100KCnt>
      <AllOtherContributionsAmt>656607</AllOtherContributionsAmt>
      <TotalContributionsAmt>656607</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>EVENT REGISTRATION &amp; SPONSORSHIPS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>1661402</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1661402</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>CONTRACT REVENUE</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>60979</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>60979</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>1722381</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>21618</TotalRevenueColumnAmt>
        <ExclusionAmt>21618</ExclusionAmt>
      </InvestmentIncomeGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>509462</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>509462</RelatedOrExemptFuncIncomeAmt>
      </RoyaltiesRevenueGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>1694397</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>1743128</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>-48731</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>-48731</TotalRevenueColumnAmt>
        <ExclusionAmt>-48731</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>2861337</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>2231843</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>-27113</ExclusionAmt>
      </TotalRevenueGrp>
      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
      <ForeignGrantsGrp>
        <TotalAmt>7500</TotalAmt>
        <ProgramServicesAmt>7500</ProgramServicesAmt>
      </ForeignGrantsGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>483418</TotalAmt>
        <ProgramServicesAmt>115405</ProgramServicesAmt>
        <ManagementAndGeneralAmt>345659</ManagementAndGeneralAmt>
        <FundraisingAmt>22354</FundraisingAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>977633</TotalAmt>
        <ProgramServicesAmt>725495</ProgramServicesAmt>
        <ManagementAndGeneralAmt>227987</ManagementAndGeneralAmt>
        <FundraisingAmt>24151</FundraisingAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>37124</TotalAmt>
        <ProgramServicesAmt>25816</ProgramServicesAmt>
        <ManagementAndGeneralAmt>11041</ManagementAndGeneralAmt>
        <FundraisingAmt>267</FundraisingAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>55964</TotalAmt>
        <ProgramServicesAmt>37959</ProgramServicesAmt>
        <ManagementAndGeneralAmt>15951</ManagementAndGeneralAmt>
        <FundraisingAmt>2054</FundraisingAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>100851</TotalAmt>
        <ProgramServicesAmt>58675</ProgramServicesAmt>
        <ManagementAndGeneralAmt>39009</ManagementAndGeneralAmt>
        <FundraisingAmt>3167</FundraisingAmt>
      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>123602</TotalAmt>
        <ManagementAndGeneralAmt>123602</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>35501</TotalAmt>
        <ManagementAndGeneralAmt>35501</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>8624</TotalAmt>
        <ManagementAndGeneralAmt>8624</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>1215787</TotalAmt>
        <ProgramServicesAmt>1153320</ProgramServicesAmt>
        <ManagementAndGeneralAmt>29961</ManagementAndGeneralAmt>
        <FundraisingAmt>32506</FundraisingAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>82215</TotalAmt>
        <ProgramServicesAmt>62285</ProgramServicesAmt>
        <ManagementAndGeneralAmt>19930</ManagementAndGeneralAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>127371</TotalAmt>
        <ProgramServicesAmt>9705</ProgramServicesAmt>
        <ManagementAndGeneralAmt>117561</ManagementAndGeneralAmt>
        <FundraisingAmt>105</FundraisingAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>76892</TotalAmt>
        <ProgramServicesAmt>52706</ProgramServicesAmt>
        <ManagementAndGeneralAmt>19186</ManagementAndGeneralAmt>
        <FundraisingAmt>5000</FundraisingAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>11065</TotalAmt>
        <ManagementAndGeneralAmt>11065</ManagementAndGeneralAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>304489</TotalAmt>
        <ProgramServicesAmt>241687</ProgramServicesAmt>
        <ManagementAndGeneralAmt>62802</ManagementAndGeneralAmt>
      </TravelGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>29665</TotalAmt>
        <ManagementAndGeneralAmt>29665</ManagementAndGeneralAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>12390</TotalAmt>
        <ManagementAndGeneralAmt>12390</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>EVENT COSTS</Desc>
        <TotalAmt>404827</TotalAmt>
        <ProgramServicesAmt>404827</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>TRAINING</Desc>
        <TotalAmt>6377</TotalAmt>
        <ProgramServicesAmt>-2172</ProgramServicesAmt>
        <ManagementAndGeneralAmt>8549</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>4101295</TotalAmt>
        <ProgramServicesAmt>2893208</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1118483</ManagementAndGeneralAmt>
        <FundraisingAmt>89604</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>210000</BOYAmt>
        <EOYAmt>548255</EOYAmt>
      </CashNonInterestBearingGrp>
      <PledgesAndGrantsReceivableGrp>
        <BOYAmt>992527</BOYAmt>
        <EOYAmt>746145</EOYAmt>
      </PledgesAndGrantsReceivableGrp>
      <AccountsReceivableGrp>
        <BOYAmt>725916</BOYAmt>
        <EOYAmt>936667</EOYAmt>
      </AccountsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>5222</BOYAmt>
        <EOYAmt>9080</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>724568</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>342158</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>391445</BOYAmt>
        <EOYAmt>382410</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>1872393</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <TotalAssetsGrp>
        <BOYAmt>4197503</BOYAmt>
        <EOYAmt>2622557</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>531833</BOYAmt>
        <EOYAmt>354608</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>517334</BOYAmt>
        <EOYAmt>506088</EOYAmt>
      </DeferredRevenueGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>1049167</BOYAmt>
        <EOYAmt>860696</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>1589510</BOYAmt>
        <EOYAmt>932706</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>1558826</BOYAmt>
        <EOYAmt>829155</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>3148336</BOYAmt>
        <EOYAmt>1761861</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>4197503</BOYAmt>
        <EOYAmt>2622557</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <InfoInScheduleOPartXIInd>X</InfoInScheduleOPartXIInd>
      <ReconcilationRevenueExpnssAmt>-1239958</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>-129265</NetUnrlzdGainsLossesInvstAmt>
      <PriorPeriodAdjustmentsAmt>-16000</PriorPeriodAdjustmentsAmt>
      <OtherChangesInNetAssetsAmt>-1252</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>1934428</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>2819213</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>2294122</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1294679</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>656607</CurrentTaxYearAmt>
        <TotalAmt>8999049</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>1934428</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>2819213</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>2294122</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1294679</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>656607</CurrentTaxYearAmt>
        <TotalAmt>8999049</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>2701492</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>6297557</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>240284</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>235693</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>710565</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>632592</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>531080</CurrentTaxYearAmt>
        <TotalAmt>2350214</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <TotalSupportAmt>11349263</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>1722381</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.55490</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.56890</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>611835</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>258290</DepreciationAmt>
        <BookValueAmt>353545</BookValueAmt>
      </BuildingsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>78584</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>62122</DepreciationAmt>
        <BookValueAmt>16462</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>34149</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>21746</DepreciationAmt>
        <BookValueAmt>12403</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>382410</TotalBookValueLandBuildingsAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>2722196</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>-129265</NetUnrealizedGainsInvstAmt>
      <OtherRevenueAmt>-1252</OtherRevenueAmt>
      <RevenueNotReportedAmt>-130517</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>2852713</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>8624</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>8624</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>2861337</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>4092671</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>4092671</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>8624</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>8624</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>4101295</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION IS A NONPROFIT ORGANIZATION AS DESCRIBED IN SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE AND IS EXEMPT FROM FEDERAL AND STATE INCOME TAXES ON TRADE OR BUSINESS PROFITS GENERATED BY ACTIVITIES RELATED TO THE ORGANIZATION'S EXEMPT FUNCTION. THE ORGANIZATION MAY BE SUBJECT TO FEDERAL AND STATE INCOME TAXES FOR PROFITS GENERATED FROM TRADE OR BUSINESS ACTIVITIES UNRELATED TO THE ORGANIZATION'S EXEMPT FUNCTION. AS OF DECEMBER 31, 2022, MANAGEMENT BELIEVES THAT THE ORGANIZATION HAS NOT GENERATED ANY UNRELATED BUSINESS TAXABLE INCOME. THE ORGANIZATION ASSESSES THE RECORDING OF UNCERTAIN TAX POSITIONS BY EVALUATING THE MINIMUM RECOGNITION THRESHOLD AND MEASUREMENT REQUIREMENTS A TAX POSITION MUST MEET BEFORE BEING RECOGNIZED AS A BENEFIT IN THE FINANCIAL STATEMENTS. THE ORGANIZATION'S POLICY IS TO RECOGNIZE INTEREST AND PENALTIES ACCRUED ON ANY UNCERTAIN TAX POSITIONS AS A COMPONENT OF INCOME TAX EXPENSE, IF ANY, IN ITS STATEMENTS OF ACTIVITIES. THE ORGANIZATION HAS NOT RECOGNIZED ANY LIABILITIES FOR UNCERTAIN TAX POSITIONS OR UNRECOGNIZED BENEFITS AS OF DECEMBER 31, 2022. THE ORGANIZATION DOES NOT EXPECT ANY MATERIAL CHANGE IN UNCERTAIN TAX BENEFITS WITHIN THE NEXT 12 MONTHS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>LOSS ON FOREIGN CURRENCY EXCHANGE -1,252.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleF documentId="RetDoc1040500001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <SubtotalOfficesCnt>0</SubtotalOfficesCnt>
      <SubtotalEmployeesCnt>0</SubtotalEmployeesCnt>
      <ContinuationTotalOfficeCnt>0</ContinuationTotalOfficeCnt>
      <ContinuationTotalEmployeeCnt>0</ContinuationTotalEmployeeCnt>
      <TotalOfficeCnt>0</TotalOfficeCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <SubtotalSpentAmt>0</SubtotalSpentAmt>
      <ContinuationSpentAmt>0</ContinuationSpentAmt>
      <TotalSpentAmt>0</TotalSpentAmt>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>RESEARCH FELLOWSHIP</TypeOfAssistanceTxt>
        <RegionTxt>SUB-SAHARAN AFRICA</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>7500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </ForeignIndividualsGrantsGrp>
      <TransferToForeignCorpInd>0</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>0</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>0</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>0</ForeignPartnershipInd>
      <BoycottCountriesInd>0</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>A WRITTEN REPORT OF THE PROJECT IS REQUIRED FROM GRANT RECIPIENTS. THE REPORT MUST BE SENT TO INTERNATIONAL SOCIETY FOR INFECTIOUS DISEASES AND RECIPIENTS ARE ENCOURAGED TO PRESENT THEIR FINDINGS AT SCIENTIFIC MEETINGS OR IN PEER REVIEWED PUBLICATIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III ACCOUNTING METHOD:</FormAndLineReferenceDesc>
      </SupplementalInformationDetail>
    </IRS990ScheduleF>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>0</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>0</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ANDREW DALECKI</PersonNm>
        <TitleTxt>CFO (UNTIL 11/30/2022)</TitleTxt>
        <BaseCompensationFilingOrgAmt>246643</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>3217</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>10015</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>259875</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>LINDA MACKINNON</PersonNm>
        <TitleTxt>CEO</TitleTxt>
        <BaseCompensationFilingOrgAmt>189791</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>18540</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>14583</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>629</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>223543</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE 990 IS PREPARED BY AN INDEPENDENT ACCOUNTING FIRM AND THEN REVIEWED BY THE DIRECTOR OF FINANCE AND THE EXECUTIVE DIRECTOR. THE 990 IS THEN MADE AVAILABLE TO THE BOARD OF DIRECTORS PRIOR TO ITS FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>BOARD MEMBERS ARE REQUIRED TO COMPLETE A CONFLICT OF INTEREST STATEMENT THAT DISCLOSES ANY CONFLICT OF INTERESTS THEY MAY HAVE. ALL CONFLICTS ARE TO BE DECLARED AT THE BEGINNING OF EACH COMMITTEE MEETING AND DISCUSSED ACCORDINGLY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>SALARY LEVELS ARE BASED ON EVALUATION OF FACTORS INCLUDING, BUT NOT LIMITED TO; THE AMOUNT AND SCOPE OF KNOWLEDGE, TRAINING AND/OR SPECIALIZED SKILLS REQUIRED; SCOPE AND RANGE OF RESPONSIBILITIES OF THE POSITION; THE ORGANIZATIONAL AUTHORITY; LEVEL OF SUPERVISION EXERCISED; THE SCOPE AND TYPE OF INTERACTION WITH OTHER EMPLOYEES, MEMBERS, BOARD AND COMMITTEE MEMBERS, PEERS IN OTHER ORGANIZATIONS, VENDORS, PROFESSIONAL PARTNERS; AND BASED ON COMPARATIVE INDUSTRY BENCHMARKS. SALARY LEVELS ARE APPROVED BY THE EXECUTIVE COMMITTEE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER PROFESSIONAL FEES: PROGRAM SERVICE EXPENSES 1,153,320. MANAGEMENT AND GENERAL EXPENSES 29,961. FUNDRAISING EXPENSES 32,506. TOTAL EXPENSES 1,215,787.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>LOSS ON FOREIGN CURRENCY EXCHANGE -1,252.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS A COMMITTEE THAT ASSUMES RESPONSIBILITY FOR OVERSIGHT FOR THE AUDIT OF ITS FINANCIAL STATEMENTS AND SELECTION OF AN INDEPENDENT ACCOUNTANT. THIS PROCESS HAS NOT CHANGED DURING THE YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
