Antibiotic Resistance ofEscherichia coliSerotypes from Cochin Estuary

[摘要] This study aimed at detecting the prevalence of antibiotic-resistant serotypes ofEscherichia coliin Cochin estuary, India.E. colistrains were isolated during the period January 2010–December 2011 from five different stations set at Cochin estuary. Water samples from five different stations in Cochin estuary were collected on a monthly basis for a period of two years. Isolates were serotyped, antibiogram-phenotyped for twelve antimicrobial agents, and genotyped by polymerase chain reaction foruidgene that codes forβ-D-glucuronidase. TheseE. colistrains from Cochin estuary were tested against twelve antibiotics to determine the prevalence of multiple antibiotic resistance among them. The results revealed that more than 53.33% of the isolates were multiple antibiotic resistant. Thirteen isolates showed resistance to sulphonamides and two of them contained thesul1 gene. Class 1 integrons were detected in twoE. colistrains which were resistant to more than seven antibiotics. In the present study, O serotyping, antibiotic sensitivity, and polymerase chain reaction were employed with the purpose of establishing the present distribution of multiple antibiotic-resistant serotypes, associated withE. coliisolated from different parts of Cochin estuary.

[学科分类] 传染病学