Bacteria Home > MRSA Staph Infection

MRSA is an infection that was once limited mostly to hospitals and healthcare facilities. It is caused by the bacterium Staphylococcus aureus -- sometimes just called "staph" for short. It typically appears as a skin infection that resembles a spider bite.
MRSA stands for "methicillin-resistant Staphylococcus aureus," which means that the bacteria no longer responds to antibiotics like methicillin and penicillin, which were widely used in the 1940s and 1950s to treat bacterial infections. Due to such widespread use, MRSA is now a common condition and is no longer confined primarily to healthcare centers like hospitals or dialysis centers. Places where people are at a potentially greater risk of infection include:
  • Dormitories
  • Daycare centers
  • Military barracks
  • Correctional facilities.
(For more information on this topic, click MRSA (Methicillin-Resistant Staphylococcus Aureus) Infection. This full-length article explores this type of staph infection in greater detail, with information on how your healthcare provider will make a diagnosis, possible complications, and more.)
Written by/reviewed by:
Last reviewed by: Arthur Schoenstadt, MD
Last updated/reviewed:
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