一起学校甲型副伤寒爆发的流行病学分析

Epidemiological analysis of an outbreak of paratyphoid A in a township school

目的分析一起学校甲型副伤寒暴发疫情的流行病学特点及暴发原因。方法运用描述流行病学的方法分析疫情有关资料。结果全学校发病267例,其中学生病例255例,罹患率22.97%,患者主要临床症状为持续发热、头痛、头晕。结论自备水源受污染及学生喝生水是引起本次甲型副伤寒暴发的主要原因。

Objective To survey an outbreak of paratyphoid A in a middle school of Lingchuan County in 2004. Methods Descriptive epidemiological methods were used. Results A total of 267 cases were identified including 255 students with infection rate 22.97%. The main clinical manifestations were persistent fever, headache and dizziness. Conclusion The main cause of the outbreak of varavhoid A was due to vollufion of school - self vrevared water seurcee.