S. aureus bacteria escaping destruction by human white blood cells.

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    Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) infections are caused primarily by a single strain—USA300—of an evolving bacterium that has spread with “extraordinary transmissibility” throughout the United States during the past five years, according to a new study led by National Institutes of Health (NIH) scientists. CA-MRSA, an emerging public health concern, typically causes readily treatable soft-tissue infections such as boils, but also can lead to life-threatening conditions that are difficult to treat.

    (Credit: NIAID/RML)

    More from: "Studies Highlight MRSA Evolution and Resilience" 2008 (http://www.niaid.nih.gov/news/newsreleases/2008/Pages/MRSAevolution.a spx)


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