| Speculation has long abounded that overuse of antibiotics by factory farmers has been a major contributing factor in the development of so-called "superbugs" like MRSA or Methicillin-resistant Staphylococcus aureus. Now, according to a report from Mother Jones, there is scientific proof. According to a paper in the American Society of Microbiology's newsletter mBio, researchers have sequenced the genomes of 88 closely-related strains of Staphylococcus aureus. They have concluded that one "particularly nasty" strain, CC398, began as a fairly harmless human bacterium known as MSSA, but evolved after colonizing the systems of pigs, chickens and other livestock. |
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