牛痘病毒B1R基因产物是一个蛋白激酶，在病毒的DNA复制中起着重要作用。
Vaccinia virus B1R gene product ACTS as protein kinase with an essential role in viral DNA replication.
正常条件下，牛痘病毒每1.2小时传遍一个细胞，而现在减慢至每五六小时传遍一个细胞。
Under normal conditions, vaccinia spread across one cell every 1.2 hours, which was slowed to one cell every five to six hours.
人在接过种后产生的抗体可以同时对牛痘病毒感染及其密切相关的天花病毒感染起到保护作用。
The vaccinated person developed antibodies which protected both against the cowpox infection and against the closely related virus that caused smallpox.
在正痘病毒属还有另外几种病毒对人具有一定的感染性，如痘苗病毒、牛痘病毒和猴痘病毒。
Variola virus belongs to the genus of orthopoxvirus, and there are some other infectious members, such as Vaccinia virus, cowpox virus, and monkeypox virus.
在正痘病毒属还有另外几种病毒对人具有一定的感染性，如痘苗病毒、牛痘病毒和猴痘病毒。
Variola virus belongs to the genus of orthopoxvirus, and there are some other infectious members, such as Vaccinia virus, cowpox virus, and monkeypox virus.
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