Obejective:To invesitigate the plasmid and drug resistance strains in 150 strains Escherichia coli isolated from healthy person in ShenZhen city.

• 目的:对深圳地区健康人肠道分离的150株大肠埃希菌进行质粒图谱分析,探讨质粒谱与耐药性的关系。