提示：点击例句中的单词，就可以看到词义解释

Discovering vaccines and medicines from cowpox to antibiotics .

从牛痘到抗生素∶探索疫苗和药物。

The boy then caught cowpox .

于是这个男孩也得了牛痘。

Edward jenner developed a vaccine from cowpox .

金纳从牛痘中发展了一种疫苗。

Cowpox and smallpox , ...... etc. are pathogen , there are antigens on their surface .

牛痘和天花等,都是病原体,它的表面含有抗原。

That was china 's first book about cowpox cultivation ; it has had profound influence on the popularization of cowpox treatment in china .

这是中国最早关于种植牛痘的书籍，这本书对于牛痘技术在中国的传播起到了深远的影响。