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东北虎(Pantheratigris)是我国国家I级保护动物.截至目前,危害东北虎的重要病毒性传染病主要有犬瘟热(CDV)、禽流感(AIV)和细小病毒病(FPV).为了解我国东北三省圈养东北虎CDV、AIV和FPV的潜伏感染和免疫情况,利用血凝及血凝抑制试验、中和试验,对75只圈养东北虎进行了CDV、AIV和FPV的血清学调查.结果表明:我国东北地区圈养东北虎H5亚型禽流感、H9亚型禽流感和犬瘟热病毒抗体阳性率分别为9.33％(7/75)、61.33％(46/75)和16.00％(12/75).说明,我国圈养东北虎AIV和CDV感染率较高,对圈养虎健康构成一定威胁.圈养虎群细小病毒抗体阳性率为100％,这与其接种猫瘟热、传染性鼻气管炎和鼻结膜炎三联疫苗有关.“,”Pantheratigris is a national first-class protected animal.At present,viral infectious diseases of Pantheratigris are mainly canine distemper virus (CDV),avian influenza (AIV) and feline parvovirus (FPV).In order to understand the infections and immune conditions of CDV,AIV and FPV in captive Pantheratigris in the three provinces of Northeastern China,the serum of 75 captive Pantheratigris was collected,and the antibody levels of CDV,AIV and FPV were texted via hemagglutination and hemagglutination inhibition experiment and neutralization experiment.The results showed the positive rates of H5,H9 subtype avian influenza and canine distemper antibody were 9.33％ (7/75),61.33％ (46/75) and 16.00％ (12/75) respectively in captive Pantheratigris of Northeastern China,and the infection rates of AIV and CDV in captive Pantheratigris were higher,indicating threats to the health of captive Pantheratigris.However,the antibody positive rate of FPV was 100％,which was related to the vaccine of feline fever,infectious rhinotracheitis and nasal conjunctivitis triple vaccine.