Diarrheagenic escherichia coli isolated in psychiatric hospital and their resistance to antibiotics

Abstract

196 strains of diarrheagenic Escherichia coli of seven serogroups isolated in 2016-2018 in psychiatric hospital in Saint-Petersburg were studied. The strains of enterotoxigenic Escherichia serogroup O6 (28.6%) and O25 (24.5%), as well as enterinvasive Escherichia serogroup O144 (23.0%) prevailed. A high proportion of antibiotic resistant Escherichia cultures (76.0%) was revealed with its marked increase over three years (from 44.3% to 97.2%). Most strains (66.8%) were resistant to 2 antibiotics, mainly ampicillin and amoxicillin / clavulanate (65.8%). The proportion of isolates resistant to cephalosporins and fluoroquinolones was small (7.6% and 5.1%, respectively). All strains were susceptible to carbapenems. Proportion of multidrug resistant strains was small (3.1%). .Thus, diarrheagenic Escherichia in the hospital were susceptible to most antimicrobial drugs.