Protozoal disease transmitted by the bite of the tsetse fly.

有舌蝇咬伤所感染的原虫病。

It is spread by the bite of an infected tsetse fly (Glossina Genus), a species native to the African continent.

它通过非洲大当地特有的物种即受感染的采采蝇（舌蝇属）的叮咬传播。