【摘要】 [目的 ]了解生活及养殖污水等环境中是否存在 O15 7大肠杆菌。[方法 ]选市区、郊区饲养场、屠宰场、农贸市场、医院和居民生活污水等作为调查对象 ,按季节定时定点采集污水、禽畜粪便和市场砧板等标本进行 O15 7大肠杆菌分离培养、鉴定。 [结果 ]从养猪场、屠宰场、市场污水和生活污水以及猪粪、鸡粪、猪肉砧板中检出 2类 O15 7大肠杆菌 (O15 7∶H7和 O15 7∶NM)。并发现夏秋季污水等环境中 O15 7大肠杆菌检出率 (2 .7% )高于冬春季检出率 (0 .8% ,P<0 .0 5 )。 [结论 ]外环境中广泛存在 O15 7大肠杆菌 ,并有其季节性 ,对人类存在潜在危害。更多还原

【Abstract】 Objective] To determine whether there is Escherichia coli O157 in life and cultivation sewage or not [Methods] To collect the samples of sewage from feed field, slaughterhouses, agricultural products in markets and hospitals, excrement of domestic fowls and animals, and chopping blocks in the markets, at regular time and definite place by seasons These samples were cultured, separated and identified for E coli O157 [Results] Two classes of E coli O157 (O157∶H7 and O157∶NM) were detected in the samples of piggery, slaughterhouses, sewage in market, domestic sewage, feces of pig and chicken, and pork chopping blocks The detectable rate of sewage in summer and autumn (2 7%) was higher than that in winter and spring (0 8%, P< 0 05) [Conclusion] E coli O157 exists in the environment extensively and seasonally and may be potential harm to human更多还原