当这些寄生虫繁殖并感染新的个体的时候，耐药性就扩散了。

When these multiply and go on to infect new individuals, drug resistance spreads.

youdao

如果见到任何感染扩散的迹象，就要请求医疗救助。

Call for medical help if you see signs of the infection spreading.

youdao

如果见到任何感染扩散的迹象，就要请求医疗救助。

Call for medical help if you see signs of the infection spreading.

youdao