Antibiotic resistance and gene producing β–lactamaza of ESBL producing E.coli isolated from pig slaughterhouses in Ha Noi City

Abstract

The studied results on antibiotic susceptibility of 33 Extended-Spectrum β-lactamases (ESBL) producing E.coli strains isolated from the pig slaughterhouses in Ha Noi City showed that 100% of the isolated E.coli strains resisted to ampicilline, kanamycine, gentamycine and tetracycline, all of them were susceptible with amoxicillin/clavulanic acid and cefepim.The result of detecting genes encoding TEM, SHV and CTX-M ESBL by using PCR technique showed that the most bla genes responsible to ESBL activity belonged to the CTX-M gene (100% tested isolates) and TEM gene (16/33 tested isolates, 48.5%), only 6.2% (2/33 tested isolates) were encoded by SHV gene.