An antibiotic-resistant "superbug," long a problem in health-care settings, is now taking up residence in people's homes, a new U.S. study finds. Methicillin-resistant Staphylococcus aureus, commonly referred to as MRSA, was once mainly confined to places like hospitals and nursing homes, where it can cause severe conditions such as pneumonia and bloodstream infections. But since the late 1980s, MRSA has also hit the wider community, where it usually causes skin infections, some of them potentially life-threatening. The bug is spread by skin-to-skin contact or through sharing supplies such as towels or razors. And certain groups are at increased risk, including athletes in contact sports and people living in cramped quarters, such as military barracks or prisons.
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