Study shows variations in MRSA superbug
Accreditation Connection, January 25, 2010
British scientists believe that the superbug methicillin-resistant Staphylococcus aureus (MRSA) can be spread from people who are unaware that they are carriers of the drug-resistant staph bacteria, according to The Washington Post. One in three people carry the superbug in their noses, can infect others, but show no signs of the disease themselves.
Using a new kind of genetic sleuthing, British scientists created a genetic blueprint of 63 samples of MRSA collected around the world between 1982 and 2003. More specifically, the scientists followed one common strain—ST239— from continent to continent and within one hospital in Thailand. Following this strain allowed the scientists to discover that during seven months in Thailand, only two patients shared the ST239 case, while the other 18 patients infected with the superbug had different strains.
"It proves to us that not all MRSA are created equally," said Buddy Creech, MD, Vanderbilt University infectious disease specialist.
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