Panton-Valentine leukocidin (PVL)-negative, SCCmec type IVa strains are the most common strains of methicillin-resistant Staphylococcus aureus (MRSA) circulating in the community in South Korea. This report describes five elderly patients presenting in 2006 to 2007 with invasive community-associated MRSA infection caused by a PVL-negative, SCCmec type IVa strain with sequence type 72 and spa type t324.
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Lee et al. (2009) studied this question.
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