Prevalence and antimicrobial resistance of Salmonella isolated from dogs in Khon Kaen province

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Patchanee Sringam
Peerapol Sukon
Arunee Polpukdee
Sarawut Sringam

Abstract

Objective: To determine prevalence of Salmonella isolated from dogs in Khon Kaen province  and  to evaluate antimicrobial resistance of the Salmonella isolates. 


Materials and Methods: Between January 2013 and December 2015, a total of 428 fecal samples were collected using rectal swab from dogs with and without diarrhea. These dogs were brought to veterinary clinics for routinely clinical examination. All samples were examined for Salmonella spp. isolation and identification using ISO 6597:2002 meth- ods. The Salmonella isolates were further tested for antimicrobial resistance with seven antimicrobial drugs (chloram- phenicol, norfloxacin, ciprofloxacin, gentamicin, sulfamethoxazole-trimethoprim and tetracycline) using a disk diffusion technique including.


Results: The overall prevalence rate of Salmonella infections in the dogs was 11.92% (51/428). Twenty-two Salmonella serovars were identified. The most predominant serovars were S. Typhimurium (19.60%), S. Weltevreden (15.69%), and S. Give (9.80%), respectively. The Salmonella isolates resisted all antimicrobial drugs tested. The resistant rates for each drug were as follow: tetracycline (78.4%), amoxicillin (51.0%), nalidixic acid (27.5%), sulfamethoxazole- trimethoprim (23.5%), gentamicin (7.8%), norfoxacin (5.9%), and ciprofoxacin (5.9 %).


Conclusion: This study indicated that Salmonella spp. could be found in dogs with and without diarrhea. Some of the isolated Salmonella serovars are known as a causative agent for human salmonellosis. In addition, most of the isolated Salmonella serovars were resistant to many antimicrobials used in human and veterinary medicine.

Article Details

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Research articles

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