Abstract
Human-to-Dog Transmission of Methicillin-Resistant<i>Staphylococcus aureus</i>
Highlights
Physical examination in late February showed a large, firm area of extensive swelling on the ventral aspect of the dog’s neck and purulent discharge from ulcerations (Figure). She had dried discharge around her right stifle and was moderately lame on that leg. Tissue samples from her neck, and fluid draining from the right stifle joint all grew methicillin-resistant Staphylococcus aureus (MRSA)
We describe a case of human-to-dog transmission of MRSA, which led to euthanasia of the dog
Given the degree of antimicrobial-drug resistance in the MRSA isolates and the close ongoing contact of the human with the healthcare system, we suspect that the source of the MRSA infection was the human healthcare system
Summary
Bacterial cultures from a skin biopsy sample yielded methicillin-resistant Staphylococcus aureus (MRSA), resistant to trimethoprim/ sulfamethoxazole, clindamycin, erythromycin, tetracycline, and ciprofloxacin. Cultures of drainage around the ankle grew MRSA with a susceptibility pattern identical to that of the previous isolate. In April 2008, after the patient had received vancomycin for 1 week and the infection had resolved, a nasal swab showed carriage of MRSA with a susceptibility pattern identical to that of the previous isolates.
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