| 杨正时,许华玉.同一血清型侵袭性大肠杆菌引起两次食物中毒的噬菌体分型研究探讨[J].Chinese journal of Epidemiology,1989,10(5):299-301 |
| 同一血清型侵袭性大肠杆菌引起两次食物中毒的噬菌体分型研究探讨 |
| A Study on Phage Analysis of two Episodes of food Poisoning Caused by the same Serotype of Enteroinvasive Escherichia Coli |
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| DOI： |
| KeyWord: 侵袭性大肠杆菌 噬菌体 |
| English Key Word: Enteroinvasive escherichia coli Phage |
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| Abstract: |
| 作者用大肠杆菌K12株检查发现1984年7~9月在北京引起二次食物中毒的侵袭性大肠杆菌血清型O28ac:K73(B):H-菌株均具有产生相同大肠杆菌素的能力,对8株从北京地区污水中分离的噬菌体的敏感性是一致的,而不同于同一血清型的EIEC保存株与其它菌株,说明这二次食物中毒是由相同噬菌体型的O28ac菌株所引起的,也证明了当年北京城西地区存在着EIEC O28ac的局部爆发流行。本文尚详细讨论了由大肠杆菌素和噬菌体形成的噬菌斑的鉴别方法。 |
| English Abstract: |
| The strains of EIEC serotype O28ac:K73 (B):H-were isolated from two episodes of food poisoning in Beijing during July to September in 1984.All strains were examined by E.coli K12 and found that they possessed the ability to produce the same colicin and same phage sensitivity pattern to eight phages isolated from contami-nated water in Beijing area.These characteristics were different from reserved strains O28ac and other strains of E.coli. It indicated that two episodes were caused by the same phage type of O28ac:K73 (B):H-and proved the local outbreak was caused by same strain in western area of Beijing.The authors discussed in detail.The differentiation methods for plaque formation produced by colicin and phage |
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