英语语法分析

Chagas disease occurs mainly in Latin America.

恰加斯病主要发生于拉丁美洲。

Chagas disease is curable if treatment is initiated soon after infection.

如果在感染后很快开始治疗，恰加斯病是可治愈的。

Vector control is the most useful method to prevent Chagas disease in Latin America.

在拉丁美洲预防恰加斯病的最有用方法是病媒控制。