endemic syphilis

例句：

1. 1. The disease is endemic in certain regions of the world.
   这种疾病在某些地区是地方性的。
2. 2. Syphilis can be transmitted through sexual contact, making it a serious health concern.
   梅毒可以通过性接触传播，因此是一种严重的健康问题。
3. 3.Treatment for endemic syphilis often involves antibiotics and lifestyle changes.
   治疗地方性梅毒通常需要抗生素和生活方式的改变。