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流行病学肉毒梭菌以芽胞状态在土壤中广泛分布,据调查美国以A型、欧洲以B型、日本以E型为主。但由于现在世界上人的往来、动物、食品的交换频繁,这种地区性差异逐渐失去意义。如苏联在1967年报告土壤中肉毒梭菌分布调查结果是:A型8.3%、B型28%、C型2.1%、D型0.2%、E型62%、F型0%;1973年则报告新的调查结果为A型4.6%、B型15.3%、C型1.5%、A+C型7.6%、E型19.8%、F型51.1%。以前检出率最高的B型减少了,原来只有0%的F型却一跃为51.1%。在日本土壤和食品中检出A、C、D、
Epidemiology Clostridium botulinum spores in the soil widely distributed, according to the survey of the United States to A, Europe to B, Japan to E-based. However, due to the frequent exchanges of animals and foods in the world nowadays, such regional differences have gradually become meaningless. For example, the results of the survey on the distribution of Clostridium botulinum in the Soviet Union in 1967 were: 8.3% for type A, 28% for type B, 2.1% for type C, 0.2% for type D, 62% for type E and 0% for type F; The new findings were 4.6% for type A, 15.3% for type B, 1.5% for type C, 7.6% for type A + C, 19.8% for type E and 51.1% for type F. The highest detection rate of the previous B-type reduced, the original only 0% of the F-type has jumped to 51.1%. In the soil and food in Japan detected A, C, D,