传染性马科动物贫血症。

Equine infectious anaemia.

吃得好的人更能抵抗传染病。

Well-fed people are better able to fight off infectious disease.

严格的卫生能降低传染的危险。

Strict hygiene will limit the risk of infection.

传染性肝炎。

Infective hepatitis.

研究人员们确信有种传染性因子在起作用。

Researchers were convinced that one infectious agent was at work.