N a contagious viral disease of cows characterized by vesicles on the skin, esp on the teats and udder. Inoculation of humans with this virus provides temporary immunity to smallpox. It can be transmitted to other species, esp cats 牛痘
One day a girl came to see him who had a cowpox sore on her hand.
一天一个女孩儿来看他,女孩儿手上有个牛痘疮。
Unlike Jenner's later vaccination, which used cowpox, variolation used a small measure of smallpox itself.
接种人痘,是直接使用小量的天花,和金纳后来用牛痘接种不同。
The vaccinated person developed antibodies which protected both against the cowpox infection and against the closely related virus that caused smallpox.
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。
But unlike the Cowpox virus, vaccinea, that we talked about before, this is the real disease causing agent.
但是同我们之前曾讨论过的,牛痘病毒疫苗的不同之处在于,这是可以直接致病的病毒
And he produced a fluid from cowpox lesions, so these were these lesions, these skin lesions on cows.
他生产出一种取自牛痘,即牛皮肤上的瘢痕的液体
But variola, which causes smallpox in humans, and vaccinia, which causes a disease called cowpox in cattle, turned out to be, we now know, viruses that are molecularly very similar.
但是导致天花的人痘病毒,和导致牛痘,的牛痘病毒,后来发现其实是,我们现在知道,这两种病毒在分子水平上十分相似
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