患疟疾的

例句：

1. 1. Malaria is a serious disease that can cause severe symptoms.
   疟疾是一种严重的疾病，可以引起严重的症状。
2. 2. The World Health Organization recommends preventive measures against malaria.
   世界卫生组织推荐采取预防措施来对抗疟疾。
3. 3. Travelers should take precautions to avoid mosquito bites and the risk of contracting malaria.
   旅行者应该采取措施避免被蚊子叮咬和感染疟疾的风险。