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小鼠仙台病毒感染确诊需进行鸡尿囊腔培养病毒分离鉴定和血清学诊断。血清学诊断以()试验敏感性和特异性好。
A . ELISA和HI
B . HA和HI
C . HA和IFA
D . ELISA和IFA
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