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１９９８年末本省苏北的灌云、苏中的泰州和苏南的丹阳３个市区的局部地区短时间内出现一批以持续发热为主要症状的病人，经调查证实是饮用污染自来水和袋装牛奶引起的甲型副伤寒暴发，针对暴发原因采取了相应的措施，及时控制了疫情的蔓延。现将结果报告如下。１ 材料与方法
At the end of 1998, a batch of patients with persistent fever as the main symptom appeared in a few areas of Guanyun in northern Jiangsu, Taizhou in central Jiangsu and Danyang in southern Jiangsu in a short period of time. After investigation, it was confirmed that drinking tap water and bags A paratyphoid outbreak caused by milk, for the reasons for the outbreak took the appropriate measures to control the spread of the epidemic in time. The results reported below. 1 materials and methods