猩红热是由β－型溶血性链球菌所致的急性呼吸道传染病。主要发生于5－10岁儿童。近十几年来，发病率明显下降，大的爆发流行时有发生。本文报告包头市铁路第五小学一起流行性猩红热的爆发流行调查分析。1调查材料1.1病例：由包头市铁路卫生所以诊断病日为依据，对传染病疑似和 Scarlet fever is an acute respiratory infection caused by beta-hemolytic streptococcus. Occurs mainly in children aged 5-10. Over the past decade or so, the incidence has dropped significantly, the occurrence of large outbreaks have occurred. This article reports Baotou Railway Fifth Primary School epidemic scarlet fever epidemic investigation. A survey of materials 1.1 cases: from the railway health clinic in Baotou City, based on the diagnosis of infectious diseases suspected and