3 sentences

1. 他致力于艾滋病的防治工作。

   tā zhì​lì yú ài​zī​bìng de fáng​zhì gōng​zuò.

   He is committed to the prevention and treatment of AIDS.

   Source: Dong Chinese Dictionary

2. 这种农药专门用于防治农作物的疫病。

   zhè zhǒng nóng​yào zhuān​mén yòng​yú fáng​zhì nóng​zuò​wù de yì​bìng.

   This pesticide is specifically used to prevent and control crop diseases.

   Source: Dong Chinese Dictionary

3. 政府正在采取措施积极防治这种传染病。

   zhèng​fǔ zhèng​zài cǎi​qǔ cuò​shī jī​jí fáng​zhì zhè zhǒng chuán​rǎn​bìng.

   The government is taking measures to actively prevent and treat this infectious disease.

   Source: Dong Chinese Dictionary