Occurrence of antimicrobial resistant bacteria in healthy dogs and cats presented to private veterinary hospitals in southern Ontario: A preliminary study.
The prevalence and patterns of antimicrobial susceptibility of fecal Escherichia coli, Salmonella spp., extended beta-lactamase producing E. coli (ESBL-E. coli), methicillin-resistant Staphylococcus aureus (MRSA), and methicillin-resistant Staphylococcus pseudintermedius (MRSP) were determined for healthy dogs (n = 188) and cats (n = 39) from veterinary hospitals in southern Ontario that had not had recent exposure to antimicrobials. The prevalence of antimicrobial resistance in E. coli was as follows: streptomycin (dogs - 17%, cats - 2%), ampicillin (dogs - 13%, cats - 4%), cephalothin (dogs - 13%, cats - < 1%), and tetracycline (dogs - 11%, cats - 2%). Eleven percent of dogs and 15% of cats had isolates that were resistant to at least 2 antimicrobials. Cephamycinase (CMY)-2 producing E. coli was cultured from 2 dogs. No Salmonella spp., ESBL-E. coli, MRSA, or MRSP isolates were recovered. The observed prevalence of resistance in commensal E. coli from this population was lower than that previously reported in companion animals, but a small percentage of dogs may be a reservoir for CMY-2 E. coli.
Murphy
Colleen
C
Department of Population Medicine, University of Guelph, Ontario, Canada.
Reid-Smith
Richard J
RJ
Prescott
John F
JF
Bonnett
Brenda N
BN
Poppe
Cornelis
C
Boerlin
Patrick
P
Weese
J Scott
JS
Janecko
Nicol
N
McEwen
Scott A
SA
D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D002415:Cats / Q000382:microbiology*; D004197:Disease Reservoirs / Q000382:microbiology / Q000662:veterinary; D004285:Dogs / Q000382:microbiology*; D024881:Drug Resistance, Bacterial; D024901:Drug Resistance, Multiple, Bacterial; D004926:Escherichia coli / Q000187:drug effects* / Q000302:isolation & purification; D005243:Feces / Q000382:microbiology; D005260:Female; D008297:Male; D055624:Methicillin-Resistant Staphylococcus aureus / Q000187:drug effects / Q000302:isolation & purification; D008826:Microbial Sensitivity Tests / Q000662:veterinary; D009864:Ontario / Q000453:epidemiology; D015995:Prevalence
D000900:Anti-Bacterial Agents