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近年来,在美国、日本曾多次暴发以出血性腹泻为特征的食物中毒,认定均系O_(157):H_7大肠杆菌所致。现就O_(157):H_7世界流行情况,国内外研究动态简介如下。1 疫情 对大肠杆菌O_(157):H_7型的认识,最早是1982年,在美国首先发现的新的致病性血清型,该菌因污染牛肉饼陷(汉堡包)或生牛恳而引起人的出血性肠炎流行。临床症状以生血性腹泻、剧烈腹痛和发热为主。后波及英国、加拿大、德国和澳大利亚等国。至今美国已暴发O_(157):H_7流行达60多起。日本的O_(157):H_7首例病人于1984年出现;1990年至1995年共发生8起。在1996年夏季不到在1个月的时间,日本各地相继发生了6起集体食物中毒事件,同年8月16日,韩国保健福利部宣布:该国已发现O_(157):H_7。
In recent years, in the United States, Japan has repeatedly outbreaks of food poisoning characterized by hemorrhagic diarrhea, identified as O_ (157): H_7 Escherichia coli caused. Now O_ (157): H_7 world epidemic situation, domestic and foreign research dynamic profile is as follows. 1 epidemic of Escherichia coli O_ (157): H_7 type of understanding, first in 1982, the first in the United States discovered a new pathogenic serotype, the bacteria contaminated beef pits (hamburger) or raw beef Ken caused The hemorrhagic enteritis epidemic. Clinical symptoms of hemorrhagic diarrhea, severe abdominal pain and fever-based. After the United Kingdom, Canada, Germany and Australia and other countries. So far the United States has been outbreak O_ (157): H_7 popular more than 60. Japan O_ (157): H_7 The first patient appeared in 1984; from 1990 to 1995, a total of 8. In less than a month in the summer of 1996, 6 collective food poisoning incidents occurred in various parts of Japan. On 16 August, the Republic of Korea announced that it had found O_ (157) H_7.