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冬季，某500头保育猪群，出现体温升高，被粗乱。部分猪喜卧，不愿运动，强行驱赶可见跛行，仔细检查发现后肢关节肿大。部分猪出现心包炎和腹膜炎。死亡率约3％。将关节液接种TSA培养基，病原生长严格依赖NAD。 该病最可能的诊断是A.猪链球菌病 B.副猪嗜血杆菌病 C.猪滑液囊支原体感染 D.猪丹毒 E.结核病 我国现阶段预防该病的疫苗是A.多价灭火疫苗 B.弱毒疫苗 C.亚单位疫苗 D.DNA疫苗 E.基因缺失疫苗 如将关节液接种含脱纤绵羊血培养基，长出的菌落周围有溶血环，该病最可能的诊断是A.猪链球菌病 B.副猪嗜血杆菌病 C.猪滑液囊支原体感染 D.猪丹毒 E.结核病
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