a viral disease of cattle causing a mild skin disease affecting the udder; formerly used to inoculate humans against smallpox 同义词：vaccinia,
Cowpox is a skin disease caused by a virus known as the cowpox virus. The pox is related to the vaccinia virus and got its name from the distribution of the disease when dairymaids touched the udders of infected cows.
例句与用法
1.
Other orthpoxviruses that cause infections in humans include variola ( smallpox ) , vaccinia ( used for smallpox vaccine ) , and cowpox viruses 其他导致人类感染的正痘病毒包括天花、牛痘（用于天花疫苗）和牛痘病毒。
2.
It belongs to a group of viruses that includes the smallpox virus ( variola ) , the virus used in the smallpox vaccine ( vaccinia ) , and the cowpox virus 它属于一个包括天花病毒、在天花疫苗中采用的病毒和牛痘病毒的病毒组。
3.
Some compounds made from separate virus strains have been successfully used in vaccines against viruses from the same subfamily , such as smallpox in humans , which is made from cowpox virus , and human measles vaccines for canine distemper in puppies 一些单独的病毒的混合,已经成功做成对抗病毒的疫苗,譬如像人类的天花,是相同的亚科病毒，是利用牛痘病毒做成的，而且人类的麻疹为小狗的大瘟热疫苗。
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