一起由街头朝鲜凉拌菜引起的伤寒流行调查东台市卫生防疫站房春保１９９３年９月１日至１０月２０日我市城区共发生伤寒病人３１７例。通过流行病学的个案调查发现，有３３．５％病人吃过朝鲜凉拌菜，为了解食用街头凉拌菜和此次的伤寒流行的相关程度，我们着重对街头销售... Together by the streets of North Korea cold dishes caused by typhoid epidemic investigation Dongtai Health and Epidemic Prevention Station Housing Chunbao September 1, 1993 to October 20 317 cases of typhoid fever in our city. An epidemiological case study found that 33.5% of the patients had eaten North Korean salad, and in order to understand the correlation between the consumption of street salad and the prevalence of typhoid fever, we focused on the street sales ...