中国禽流感疫情现状及防控策略.

中国禽流感疫情现状及防控策略SituationandStrategiesonHPAIPreventionandControlinChinaJiaYouLingNationalCVODirector-General,VeterinaryBureauMinistryofAgriculture,P.R.China2007.11Beijing国家首席兽医官贾幼陵农业部兽医局局长一、中国家禽业概况1BriefofPoultryIndustryinChina1.1.OverviewofChina’spoultrysectoraldevelopmentNo.ofpoultryinpentincreased3-8%annuallysince1980In2005，15.198billionbirdsraised，5.333billioninpentattheendoftheyear,including4.36billionchicken，730millionduck，makingup26.5％and69.1%oftheworldtotalrespectivelyIn2006，15.541billionbirdsraised,5.365billioninpentattheendoftheyearShareofpoultryfarms(households)over2000birdsincreasedfrom40.9％in1999to49.5%in2004图11980－2006年中国鸡年末存栏变化情况（单位：万羽）Fig.1ChickenyearendstockchangesinChinabetween1980and2006（Unit：tenthousand）0.00100,000.00200,000.00300,000.00400,000.00500,000.00600,000.00198019851990199520002006活鸡图2家禽饲养区域分布情况Fig.2RegionalDistributionofPoultryIndustryWaterfowls水禽分布Broilers肉鸡分布Hens蛋鸡分布Shandong,Liaoning,Jinlin,etc.Shandong,Hebei,Henan,etc.Hunan,Hubei,Guangdong,Fujian,etc.feature：differentpoultryconcentrateindifferentregions二、中国高致病性禽流感疫情状况2.SituationofHPAIinChina2.1.AIprofileinChinaAsoftoday,noH7infectiondetectedinChinaIn1996，firstH5N1AIVisolatedfromgeeseinChina.InJan2004,firstH5N1AIinfectiondetectedinGuangxi.FromJan2004throughOct2007，94HPAIcasesofdomesticbirdsfoundsin22provinces，34.8millionbirdsculled.24humancasesofHPAIdetectedinChina’smainland,16ofwhichdiedDuetoimplementationofintegratedprevention&controlmeasurescombiningvaccinationandcull,no.ofcasesandfrequencyforHPAIDroppeddramatically:50casesin2004,31in2005,10in2006,and3sofarin2007年份Year疫情省数Numberofinfectedprovinces疫点数Numberofinfectedspots禽鸟数量（单位：万羽）Numberofbirds(units:tenthousands)野鸟数量Numberofwildbirds(units:thousand)发病数Numberofinfectedanimals死亡数Numberofdeaths扑杀数Numberofculledanimals死亡数NumberofDeaths(WildBirds)2004165014.4912.91904.502005123115.8215.462257.126.34520067109.104.70298.523.6412007332.302.1721.30合计Total229441.7135.243481.4441.71表1China家禽高致病性禽流感发生概况Table1.PoultryHPAIOutbreaksinChinafrom2004to2007Wildbirdsclade(2005-2006,BHG/QH/06)Waterfowlclade(2005-2006,DK/HuB/05)XinjiangClade(2005,CK/XJ/05)ShanxiClade(2006,CK/SX/06)HAgeneoftheH5N1virusesisolatedin2005-2006二、中国高致病性禽流感疫情状况2.SituationofHPAIinChina2.3.SituationonHPAIPreventionandControlinChinaInfectionsourceremainsdifficulttobeeradicatedinshortterm.In2007,atotalof37samplesofHPAIpositivedetected,involvingFujian,Guangdong,Hunan,Hubei,Sichuan,andChongqingGreaterproportionoffreerangefarmingforpoultry,poorfarmingconditionsandmanagement,leadingtodifficultiesinprevention&controlofHPAIFrequentlong-distancetransportationofpoultryleadingtogreaterrisksofoccurrenceandspreadofdiseaseLargefarmingpopulationofwaterfowl,unvaccinedwaterfowlsmaycarryhiddenvirusClosecontactofinfectedmigratorybirdswithdomesticbirdsresultsinthreatofoutbreak3.1.EstablishcommandsystemforHPAIpreventionbasedoncross-sectorcooperation三、中国高致病性禽流感防控策略3.StrategiesonHPAIPreventionandControlinChinaNationalHQforHPAIPrevention&ControlProvinciallevelCitylevelCountylevelTownshipleveloffice：MOAForeignAffairsGroup：MFAPublicityGroup：PublicityDeptofCPCCentralCommitteeSupportGroup：NDRCTechnologyGroup：MOSTSupervision&QuarantineGroup:AQSIQprevention&controlGroup:MOA三、中国高致病性禽流感防控策略3.StrategiesonHPAIPreventionandControlinChina3.2.establishing&refininglaws®ulations,prevention&controlaccordingtolawtheLawofthePeople’sRepublicofChinaonAnimalEpidemicPreventiontheRegulationsonHandlingofMajorAnimalEpidemicEmergenciestheStateOverallContingencyPlanonPublicEmergenciestheStateContingencyPlanonAnimalEpidemicEmergenciestheStateContingencyPlanonHPAIprevention&control3.3.3.integratedprevention&controlmeasures,givingprioritytopreventionFullvaccinationofalldomesticbirdsIntegratedprevention&controlmeasurescombiningvaccinationandcullReinforcementofepidemicmonitoring,quarantinesurveillanceandcirculationcontrol三、中国高致病性禽流感防控策略3.StrategiesonHPAIPreventionandControlinChina3.4.Strengtheningmonitoringandreporting,enhancingpre-warningandforecastcapacityAnnualnationalHPAIMonitoringplandraftedandstrictlyimplementedsince2004Buildingupanimalepidemicmonitoringandreportingmechanism三、中国高致病性禽流感防控策略3.StrategiesonHPAIPreventionandControlinChina表2.2004－2007年China禽流感监测结果Table2.HPAISurveillanceResultsinChinafrom2004to2007年份Year血清样品数(单位:万份)Numberofserumsamples(unit:tenthousand)病原样品数(单位:万份)Numberofpathogensamples(unit:tenthousand)阳性样品数Numberofpositivesamples2004286.89.3162005292.320.9212006635.246.5502007283.9*22.637*合计total154099.3146*：2007年为1－9月份数据。AsofSept2007农业部兽医局Vet.Bureau动物疫病预防控制中心CADC省级动物疫病预防控制中心Provincelevel(36个,含5个计划单列市)乡镇防疫组织(兽医站)TownLevel（36000）村防疫员或疫情报告观察员villagevlevel(645000)畜主Farmer执业兽医PracticeVet.国家动物疫情测报中心NationalAnimalDiseaseSurveillanceAndReport动物疫情测报站Ani.DiseaseSurveillanceStation边境动物疫情监测站Ani.DiseaseSurveillanceBordingStation省级动物疫情测报中心ProvincialAnimalDiseaseSurveillanceAndReport疫情报告体系疫情监测体系NationalAnimalDiseasereportSys.NationalAnimal.DiseaseSurveillanceSys.图4国家动物疫情监测与报告体系Fig.4NationalAnimalDiseaseSurveillanceandReportSystem县级动物疫病预防控制中心Count