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Superbug MRSA Turns Super Killer
October 17, 2007 at 6:00 PM
General Health News
The study, published today in the Journal of the American Medical Association, suggests that invasive infections with methicillin-resistant Staphylococcus aureus, or M.R.S.A., may be twice as common as previously thought.
According to lead author, Dr. R. Monina Klevens, the number of deaths associated with M.R.S.A. each year exceed those attributed to HIV/AIDS,Parkinson's disease, emphysema or homicide.
By extrapolating data from nine locations, the researchers established the first true baseline for M.R.S.A. in the United States, projecting that 94,360 patients developed an invasive infection from the pathogen in 2005 and that nearly one of every five, or 18,650 of them, died.
The authors, who work for the Centers for Disease Control and Prevention, cautioned that their methodology differed significantly from previous studies and that direct comparisons were therefore risky. Yet, they stressed that they were surprised by the prevalence of the serious infections they found, which they calculated as 32 cases per 100,000 people.
The study also gave that 85 percent of invasive M.R.S.A. infections are associated with health-care treatment. Previous research has indicated that many hospitals and long-term care centers have become breeding grounds for M.R.S.A. because bacteria may be transported from patient to patient by doctors, nurses and unsterile equipment.
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