Virulence genes in multidrug resistant Escherichia coil
- Author:
- No author available
- Journal Title:
- Chinese Journal of Clinical Infectious Diseases
- Issue:
- 1
- DOI:
- 10.3760/cma.j.issn.1674-2397.2012.01.005
- Key Word:
- 大肠杆菌;毒力;基因;Escherichia coli;Virulence;Genes
Abstract： Objective To investigate the distribution of virulence-related genes in multidrug resistant Escherichia coli.Methods Seven virulence genes papA,cnf1,cnf2,cfaB,ipaB,hofQ and ompT were detected by PCR in 20 strains of multidrug resistant Escherichia coli clinically isolated,and the positive genes were further searched in 31 strains of Escherichia coli in BioCyc database whose genomies had been fully sequenced.Results Virulence genes hofQ and ompT were detected in 20 strains of Escherichia coli with a positive rate of 95.0％ (19/20) and 55.0％ ( 11/20),respectively.Among 31 strains of Escherichia coli in BioCyc,21 (67.7％) were positive for hofQ gene and 15 (48.4％) were positive for ompT gene.Conclusion hofQ and ompT genes are prevalent in multidrug resistant Escherichia coli.
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