Transmissible drug resistance in Escherichia coli isolated from healthy dogs, cattle, sheep and horses.
The antibiotic resistance patterns and the distribution of R-factors among Escherichia coli isolated from apparently healthy dogs, cattle, sheep and horses were studied. It was found that 102 strains (16.48 per cent) of a total of 619 isolates were resistant to one or more drugs. Twenty-six per cent (27 strains) of the resistant strains were capable of transferring either a part or the entire resistance patterns to the sensitive recipient strain. These results indicates that antibiotic resistance and R-factors are not particularly widespread among animals whose diet does not cotain antimicrobial drugs.
D000818:Animals; D002417:Cattle / Q000382:microbiology*; D004285:Dogs / Q000382:microbiology*; D004926:Escherichia coli / Q000187:drug effects* / Q000235:genetics / Q000302:isolation & purification; D005243:Feces / Q000382:microbiology; D006736:Horses / Q000382:microbiology*; D011815:R Factors; D012756:Sheep / Q000382:microbiology*