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1997年10月24日，长沙市区2所小学组织学生秋游，向某餐馆订购午餐盒饭，学生食用后于当晚出现发热、腹泻，至10月30日共发病305人。市、区卫生防疫站接到疫情报告后，即赶赴现场进行调查处理，有效地控制了疫情，现将结果报道如下。工流行病学调查l．1流行概况：参加秋游共122
On October 24, 1997, two primary schools in Changsha City organized autumn class tours to order lunch at a restaurant. After eating, students developed fever and diarrhea on the night of the night, and a total of 305 people were affected by October 30. After the city and district health and epidemic prevention stations received the epidemic report, they rushed to the scene for investigation and treatment, effectively controlling the epidemic, and the results are reported as follows. Epidemiological survey l. 1 popular profile: to participate in autumn tour a total of 122