marmarosis

例句：

1. 1. The malaria outbreak in Africa has been a major concern for years.
   非洲的疟疾爆发多年来一直是主要的担忧。
2. 2. Malaria is caused by the bite of infected mosquitoes.
   疟疾是由受感染的蚊子叮咬引起的。
3. 3. Malaria prevention and treatment are crucial in endemic areas.
   在流行地区，预防和治疗疟疾至关重要。