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一种对人类健康正在构成严重威胁的大肠杆菌菌株的基因组顺序排列已经测定完成。与一种无害菌株的基因组相比较可揭示此细菌中的某些种类致病的原因。人与大肠杆菌可以正常地共存而相安无事。大肠杆菌是人胃肠系统的一种常见的有益菌。但也存在着有害的种类,其中危害最大的一种称为0157:H7,于1983年首次被确认为与人疾病有关。同年被证明是美国上一年度两次爆发严重而异乎寻常的胃肠道疾病的原因。此后,全球范围
Genome sequencing of one E. coli strain that is posing a serious threat to human health has been completed. Comparing with the genome of a harmless strain reveals the causative cause of certain species in this bacterium. People and E. coli can co-exist normally and live in peace. E. coli is a common beneficial bacteria of the human gastrointestinal system. However, there are also harmful species, of which the most harmful one, 0157: H7, was first identified in 1983 as being associated with human diseases. The same year proved to be the cause of the serious and unusual gastrointestinal disease that broke out twice in the United States last year. Since then, worldwide