“Pneumonic%2Bplague”的搜索结果,显示 11-20 项,共有 7885 项
Dr. Edward Jenner finds that vaccination with the cowpox virus can protect a person from smallpox infection and creates a smallpox vaccine. He publishes his ...
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The diphtheria-tetanus-acellular pertussis (DTaP) vaccine is licensed. This vaccine is an acellular vaccine, which causes fewer side effects than the whole-cell ...
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