一些调查表明,医院和旅馆的大部分空调冷却水系统和冷、热家庭用水系统中有引起军团病的嗜肺军团菌。暴露于这种供水系统后,偶可引起军团病的爆发。在1979～1982年间,英格兰和威尔土发生了两个或两个以上病例的爆发有31起,其中24起 Some surveys have shown that Legionella pneumophila, which causes Legionella disease, are present in most air conditioning cooling systems and cold and hot domestic water systems in hospitals and hotels. After exposure to this water supply system, even can cause the outbreak of Legionnaires’ disease. Between 1979 and 1982, there were 31 outbreaks of two or more cases in England and Wells, of which 24