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. 2010 Jul;51(7):738-42.

In vitro antimicrobial resistance of staphylococci isolated from canine urinary tract infection

Bruno Penna  1 , Renato Varges, Rodrigo Martins, Gabriel Martins, Walter Lilenbaum
Affiliations

In vitro antimicrobial resistance of staphylococci isolated from canine urinary tract infection

Bruno Penna et al. Can Vet J. 2010 Jul.

Abstract
in English, French

This study determined the diversity of species and antimicrobial resistance of staphylococci isolated from dogs with a presumptive diagnosis of urinary tract infection (UTI). Urine samples from 348 dogs with clinical signs of UTI, according to clinical examination and urinalysis, were processed for isolation of Staphylococcus. Colonies in pure culture were identified by biochemical reactions and tested for susceptibility to 15 antimicrobials. Seventy isolates of staphylococci were obtained (20.1%). Staphylococcus pseudintermedius was the most frequent species (32.8%), followed by S. epidermidis (18.6%), S. simulans (15.7%), S. schleiferi schleiferi (11.4%), S. aureus (11.4%), S. schleiferi coagulans (7.2%) and S. saprophyticus (2.9%). All the isolates were resistant to at least 1 drug and 77.1% were multiresistant. The study reports the alarming antimicrobial resistance of members of the Staphylococcus genus isolated from canine UTI and highlights the importance of coagulase-negative staphylococci in its etiology.

Résistance aux antimicrobiens de staphylocoques isolés dans une infection du tractus urinaire canin. Cette étude a déterminé la diversité des espèces et la résistance aux antimicrobiens des staphylocoques isolés chez des chiens avec une présomption de diagnostic d’infection du tractus urinaire (ITU). Des prélèvements d’urine provenant de 348 chiens avec des signes cliniques d’ITU, selon l’examen clinique et l’analyse d’urine, ont été analysés pour l’isolement de Staphylococcus. Les colonies en culture pure ont été identifiées par des réactions biochimiques et testées pour la susceptibilité à 15 antimicrobiens. Soixante-dix isolats de staphylocoques ont été obtenus (20,1 %). Staphylococcus pseudintermedius était l’espèce la plus fréquente (32,8 %), suivie de S. epidermidis (18,6 %), de S. simulans (15,7 %), de S. schleiferi schleiferi (11,4 %), de S. aureus (11,4 %), de S. schleiferi coagulans (7,2 %) et de S. saprophyticus (2,9 %). Tous les isolats étaient résistants à au moins un médicament et 77,1 % étaient multirésistants. L’étude signale l’alarmante résistance aux antimicrobiens des membres du genre Staphylococcus isolés de l’ITU canine et souligne l’importance des staphylocoques à coagulase négative dans son étiologie.

(Traduit par Isabelle Vallières)

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