Prevalence of the methicillin-resistant Staphylococcus aureus in dogs in Ha Noi City

Abstract

Methicillin-resistant Staphylococcus aureus (MRSA) is an opportunistic pathogen that infects secondarily for both human and animals in the healthcare centres. MRSA strongly resists to many antibiotics. MRSA can transmit between human and animals, especially between human and pets. In this study, 120 samples including pus, booger, blood, pleural fluids, vaginal fluids from dogs suspecting MRSA infection were collected in Tap the Petcare clinic (Dan Phuong district, Ha Noi City) for detecting MRSA by multiplex PCR.The studied results indicated that 4/120 (3.33%) collected samples were positive with MRSA. The positive samples were all found in foreign dogs and were not detected in any domestic dog. Among the collected samples, pus fluid accounted for the highest positive rate. The antibiotic susceptibility of four MRSA isolates was determined by agar disc diffusion method. The antibiotic resistant proportion of the MRSA isolates was higher than that of MSSA (methicillin- sensitive Staphylococcus aureus). The result of antibiograms indicated that the MRSA isolates did not resist to vancomycin and resisted weakly to trimethoprim-sulfamethoxazole. Therefore, trimethoprim-sulfamethoxazole and vancomycin can be used for treatment of the MRSA infected dogs.