Researchers Study Possible Human-to-Horse MRSA Transmission
The veterinarians, who work for the Japan Racing Association (JRA), conducted a thorough investigation to determine the infection’s origin. Taisuke Kuroda, DVM, PhD, presented their findings at the 2017 American Association of Equine Practitioners convention, held Nov. 17-21 in San Antonio, Texas.
Methicillin-resistant Staphylococcus aureus (MRSA) is a Gram-positive bacterium that differs genetically from other S. aureus strains, making it resistant to many antibiotics. Therefore, it is particularly difficult to treat and causes more human deaths than methicillin-susceptible strains.
The bacterium is colonized on the skin and in the nasal passages of humans and animals. Scientists estimate that the level of nasal MRSA colonization in healthy horses is 2% in the United Kingdom and 4.7% in the United States and Canada. Among people in the veterinary community, the level of nasal MRSA colonization has been shown to be 15.6% in the United States, 9.3% in Canada, and 21.4% in Australia. There are three routes of transmission of MRSA in the human population; between people within a community, between health care workers and the larger community and between humans and
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