地方病是指具有严格的地方性区域特点的一类疾病。世界上的许多国家和地区以及我国各省、自治区、直辖市都有不同的地方病发生,有的地区可多达五六种。在我国受威胁的人口达4.2亿多。地方病主要发生于广大农村、山区、牧区等偏僻地区,病区呈灶状分布。 Endemic disease refers to a class of diseases that have strict local characteristics. Many countries and regions in the world and various provinces, autonomous regions, and municipalities in China have different endemic diseases. Some regions can have as many as five or six species. The threatened population in our country amounts to more than 420 million. Endemic diseases mainly occur in remote areas such as rural areas, mountainous areas, and pastoral areas, and the wards are focally distributed.