【摘 要】
：
为了明确引起雏鸭胰腺炎的新型鸭1型甲肝病毒(duck hepatitis A virus 1,DHAV-1)的分类地位,通过鸭胚血清交叉中和试验测定并分析其与经典的肝炎型DHAV-1的抗原相关性.经血清
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为了明确引起雏鸭胰腺炎的新型鸭1型甲肝病毒(duck hepatitis A virus 1,DHAV-1)的分类地位,通过鸭胚血清交叉中和试验测定并分析其与经典的肝炎型DHAV-1的抗原相关性.经血清交叉中和试验测得抗胰腺炎型DHAV-1阳性血清对胰腺炎型DHAV-1、经典的肝炎型DHAV-1的中和效价分别为1∶169.8、1∶91.2,而抗肝炎型DHAV-1阳性血清对经典的肝炎型DHAV-1、胰腺炎型DHAV-1的中和效价分别为1∶125.9、1∶89.1.参照同属小RNA病毒科的口蹄疫病毒血清型、亚型的划分标准,计算得出胰腺炎型DHAV-1与经典的肝炎型DHAV-1间的抗原亲源值(R)为0.62,介于0.32～0.7之间,表明胰腺炎型DHAV-1与经典的肝炎型DHAV-1相比其抗原性发生了较大变异,定名为鸭1型甲肝病毒亚型(DHAV-1a).
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