“牛痘”的拼音为：niú dòu...

种牛痘疫苗可以控制住天花.Smallpox can be contained by vaccination.种牛痘可以免患天花.Vaccination immunizes people against smallpox.种牛痘防天花是有效的.Vaccination for smallpox is efficacious....

“牛痘”的英语可以翻译为：[医]cowpox，vaccinia，smallpox pustule，vaccine pustule ...