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Staphylococcus aureus, MRSAHow MRSA looks like? |
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In the late 1940s and throughout the 1950s, S. aureus developed resistance to penicillin. Methicillin, a form of penicillin, was introduced to counter the increasing problem of penicillin-resistant S. aureus. Methicillin was one of most common types of antibiotics used to treat S. aureus infections; but, in 1961, British scientists identified the first strains of S. aureus bacteria that resisted methicillin. This was the so-called birth of MRSA.
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Courtesy: Centers for Disease Control and Prevention |
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Original image with higher resolution here (CDC).
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NIAID
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