Prevalence and Antimicrobial Resistance of Salmonella spp. in Non-diarrhoeic Dogs in Trinidad

Authors

  • N. Seepersadsingh,

    1. Address of authors: Faculty of Medical Sciences, School of Veterinary Medicine, University of the West Indies, St Augustine, Trinidad and Tobago, West Indies
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  • A. A. Adesiyun,

    1. Address of authors: Faculty of Medical Sciences, School of Veterinary Medicine, University of the West Indies, St Augustine, Trinidad and Tobago, West Indies
    2. Corresponding author: Tel.: +1 868 645 4481; fax: +1 868 645 7428; E-mail: abiodunadesiyun@hotmail.com
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  • R. Seebaransingh

    1. Address of authors: Faculty of Medical Sciences, School of Veterinary Medicine, University of the West Indies, St Augustine, Trinidad and Tobago, West Indies
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Faculty of Medical Sciences, School of Veterinary Medicine, University of the West Indies, St Augustine, Trinidad and Tobago, West Indies

Summary

The estimated prevalence and antimicrobial resistances of Salmonella spp. in non-diarrhoeic dogs across Trinidad was determined. The serotypes of Salmonella spp. isolated were also identified. Of a total of 1391 dogs sampled, 50 (3.6%) were positive for Salmonella spp. with 28 different serotypes, the predominant serotypes were Javiana (12), Newport (6), Arechavaleta (5) and Heidelberg (5). Fifty-seven (85.1%) of 67 isolates exhibited resistance to one or more antimicrobial agents. Of eight antimicrobial agents tested, resistance was exhibited to streptomycin (80.6%), cephalothin (37.3%), neomycin (38.8%) and gentamicin (9.0%). All isolates were sensitive to ampicillin, norfloxacin, choramphenicol and sulphamethoxazole/trimethoprim. It was concluded that the isolation of the Salmonella spp. from non-diarrhoeic dogs could pose health hazard to their owners as most serotypes are known to be virulent. Furthermore, the prevalence of resistance to antimicrobial agents amongst the Salmonella isolates from these animals indicates susceptibility testing may influence chemotherapeutic choices when treating these isolates.

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