1、Some areas of Africa are infested with tsetse flies, which carry a potentially fatal disease called African trypanosomiasis.
非洲的一些地区受到叮嗡虫的侵扰，这种昆虫携带着一种潜在致命的疾病叫做非洲锥虫病。

2、The tsetse fly is responsible for transmitting the parasite causing sleeping sickness in humans and animals.
叮嗡虫负责传播导致人类和动物患上睡眠病的寄生虫。