ISOLATION AND ANTIMICROBIAL SUSCEPTIBILITY OF STAPHYLOCOCCUS SCHLEIFERI SUBSP SCHLEIFERI FROM CANINE PYODERMA AND OTITIS IN CHENNAI
2024
M. Anandachitra
Coagulase negative Staphylococci were considered as commensal organisms or contaminants with limited pathogenic potential. However, they are becoming more frequently associated with nosocomial infections in human and skin infections in animals. In this study, we attempted to isolate and identify the Staphylococci species that causes dermatological infections in dogs. Out of 35 isolates, 27 were identified as S.pseudintermedius and 3 as S.schleiferisubspschleiferi. Among three S.schleiferi isolates, 2 were closely related to S.schleiferi ATCC strain in pta gene sequences. Methicillin resistant gene (mecA) was not detected in these isolates. All three isolates were susceptible to oxacillin, amikacin, gentamicin and tetracycline, intermediate susceptibility to ceftriaxone and resistant to Penicillin, ampicillin, sulphadiazine. S.schleiferi is an emerging cause of infections in veterinary patients. None of the isolate produced biofilm in microtitre tissue culture plate adherence method. This is the first report of isolation and identification of S.schleiferi from canine skin infections from India. Further studies are needed for early detection and virulence factors of S.schleiferi in the pathogenesis of pyoderma and otitis in dogs.
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