Mercer Disease
in Dogs
Mercer disease in dogs is also known as Methicillin Resistant Staphylococcus Aureus (MRSA), which is a highly contagious bacterial staph infection. Mercer disease can be passed on to humans through contact, and within hospitals, health care facilities and veterinarian offices where germs and diseases are easily passed on.
Signs and Symptoms of MRSA
MRSA can surface on the dog's skin or penetrate the skin, depending on the severity, and can be visible through boils, red inflamed areas with an acne-like bump in the middle, other visible wounds and sores. These lesions may be crusty in appearance, especially on the dog's belly, and the infected area may itch and/or drain puss, which causes the hair to mat and sometimes results in hair loss. If MRSA enters the blood stream, this can result in a serious blood infection, pneumonia, meningitis and heart problems. Most dogs will usually show lesions on their bodies, though some dogs may not show any symptoms at all.
Diagnosing MRSA
If you suspect your dog is a carrier of MRSA, certain tests can be performed by your vet for a definite diagnosis to determine treatment. A blood test can be executed and urine or sputum samples are sent to the lab in order to identify the exact bacteria present. Samples may include fluid from an abscess, a tissue biopsy or other bodily fluids. A new readily available test is called the BD GeneOHm test, which can have results within two hours.
How Does MRSA Spread
MRSA is a very contagious bacterial staph infection that can spread from human to animals and vice versa. Much depends on personal hygiene, reiterating how important it is to wash hands after handling infected pets and infected humans. The infection can spread through airborne bacteria, bacteria from the infected skin, contamination of surgical sites and tools, unclean environment and sneezing or coughing without covering the mouth.
Preventing MRSA
Some simple common sense techniques can aid in the prevention of your dog contracting MRSA. The most important element in prevention is personal hygiene. Wash your hands often, especially if your dog has had recent surgery and/or any open wounds. Clean all human and dog wounds carefully and keep them covered properly. When caring for a MRSA-infected dog or human, be sure to wear rubber gloves and always sanitize all instruments and areas that they enter.
Treatment for MRSA
Some MRSA bacterial infection may be difficult to treat due to a resistance to an anti-biotic. Some dogs resistant to a particular anti-biotic may need higher doses or take the prescribed medication for a longer period. Your vet may also suggest isolating your dog from human contact due to a chance of the spread of the infection. Be sure all wounds are treated regularly with a good antiseptic cleanser.
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