Drug-resistant staph infections being found in pet - German Shepherd Dog Forums
 
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post #1 of 3 (permalink) Old 11-06-2007, 06:16 PM Thread Starter
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Drug-resistant staph infections being found in pet

Has anyone read this? I guess I have never really thought about pets being able to get staph from humans. Our area in the past year as had some big time staph problems. Every time I turned around someone I knew had a staph infection. It was actually getting pretty scary..anyway thought I would post as I really had never thought about pets getting it from humans, and then pets being able to pass on to humans also.

drug-resistant staph infections in dogs

MELVILLE, N.Y. - Some veterinarians are documenting more and more cases of drug-resistant staph infections in dogs and cats, but say there is no reason for alarm among pet owners if they follow measures of simple hygiene.

Dr. Lewis Gelfand, a Long Beach, N.Y., veterinarian, said he's treating an increasing number of animals with skin eruptions infected with methicillin-resistant Staphylococcus aureus — MRSA. The cases seem to have increased, he said, in recent months.

"It's definitely a rapidly expanding problem," Gelfand said, adding that he has had 19 cases in dogs in the past year. "I believe it is a significantly underdiagnosed problem. We have been seeing dermatological cases as well as open sores."

Treatment can prove so difficult in some instances that pets have to be hospitalized, occasionally for weeks, and infused with intravenous antibiotics, which carry side effects.

Dr. Patrick McDonough, an assistant professor in the diagnostics laboratory at Cornell University's veterinary college, said pets contract MRSA from their owners. "This is what we call reverse zoonosis, the organism is moving from people to animals," McDonough said. "Once animals colonize it we don't know how long they maintain it but this is one case where they are sharing what we have."

Because MRSA is so widespread, McDonough said it has been cultured in a variety of animals, including pigs and horses.

"Staph are very good at scavenging genetic material from other organisms and using it" as a mechanism for survival, McDonough explained. "But just because it's residing in the nose of a dog or cat doesn't mean the organism is causing infection."

If an owner transmits the bacteria to a pet through close contact, the microbes may colonize in the animal's nose, paving the way for MRSA to be passed again to people.

Dr. Bruce Hirsch, a specialist in infectious diseases at North Shore University Hospital in Manhasset, N.Y., noted a sharp difference between an animal that is colonized and one that is infected. A colonized animal may be a carrier yet remain in robust health — and the same goes for humans, he said.

"There was a large outbreak in 2003," he added, citing the medical literature. "A 31-year-old nurse was a carrier and underwent a number of treatments to relieve the carriage state. The same strain was found in her family members including her 1-year-old daughter and pet dog.

"After the pet was given the same antibiotics that we receive, the bacteria were eliminated. This is a classic case: The dog was not infected but was colonized with MRSA."

Now that MRSA is no longer an organism found only in hospitals, experts say it is likely that it will be seen more frequently in domestic animals.

Dr. Josh Tumulty, chairman of internal medicine at Long Island Veterinary Specialists in Plainview, N.Y., and Dr. John Charros, a veterinarian in Valley Stream, N.Y., say they've seen cases in pets.

"It's becoming more prevalent," Tumulty said. "And it's not only an awareness issue."

Pets increasingly are being used as companions in nursing homes and hospices where the animals can become colonized with MRSA, Tumulty said.

Charros mostly has found MRSA in certain kinds of infections.

"We see it in the ear cases and in some of the dermatological cases," he said. "We call them superinfections, and the bacteria are resistant to traditional antibiotics."

Jen


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post #2 of 3 (permalink) Old 11-06-2007, 08:16 PM
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Re: Drug-resistant staph infections being found in pet

I pretty much thought it was a matter of time. I posted in a Staph thread not too long ago that this could become a problem. I also think that if the Vet thinks your dog has a Staph infection they should really run a culture to make sure they get the correct antibioitic(s) instead of playing Russian Roulette with the antibioitics.


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post #3 of 3 (permalink) Old 11-06-2007, 10:35 PM Thread Starter
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Re: Drug-resistant staph infections being found in pet

I agree with you about the testing, especially after reading this. One of my labs recently had a staph infection, but it actually cleared up fairly fast after abx's, daily scrubs and topical rinses. I guess I would not have thought about this as much, however with all the cases lately in my area, it gets you thinking..

Jen




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