One alternative to attenuated vaccines is a killed or inactivated vaccine.

减毒疫苗的一种替代品是灭活疫苗或灭活疫苗。

Toxoids can actually be considered killed or inactivated vaccines, but are sometimes given their own category to highlight the fact that they contain an inactivated toxin, and not an inactivated form of bacteria.

类毒素实际上可以被认为是灭活或灭活疫苗， 但有时会被赋予它们自己的类别， 以强调它们含有灭活毒素， 而不是灭活形式的细菌。