Vaccine & Bacterin

Vaccine:
1. A preparation of a weakened or killed pathogen, such as a bacterium or virus, or of a portion of the pathogen's structure that upon administration stimulates antibody production or cellular immunity against the pathogen but is incapable of causing severe infection.
2. A preparation from the cowpox virus that protects against smallpox.

Bacterin
A suspension of killed or weakened bacteria used as a vaccine.

即Bacterin係Vaccine架其中一種

Vaccine 疫苗 is a preparation of a weakened or killed PATHOGEN 病原體 (anything that can make you sick/cause diseases), or of a portion of the pathogenic structure. Examples of pathogens include bacteria 細菌, viruses 病毒, fungi 真菌, and even proteins 蛋白質. Vaccination aims at stimulating an artificial primary immune response 免疫反應 against a SPECIFIC type of antigen 抗原. This helps prevent infectious diseases 傳染病 such as tuberculosis 結核病.

Bacterin is a suspension of killed or weakened BACTERIA USED AS A VACCINE.

In other words, bacterin is the special term referring to a vaccine which uses bacteria.

不知道你是要中文版還是英文版，我就簡單用中文說明一次好了。（詳細的請見英文版）

Vaccine和bacterin都是疫苗，但前者所用的（弱化）病原體pathogen可以是病毒、細菌、真菌等；後者則是只特指以細菌bacteria為病原體的疫苗。


希望幫到你。=]]