Methicillin-resistant Staphylococcus aureus infections among competitive sports participants - Colorado, Indiana, Pennsylvania, and Los Angeles County, 2000-2003.
D016000:Cluster Analysis; D003120:Colorado / Q000453:epidemiology; D004196:Disease Outbreaks; D007196:Indiana / Q000453:epidemiology; D015141:Los Angeles / Q000453:epidemiology; D016106:Methicillin Resistance; D010414:Pennsylvania / Q000453:epidemiology; D012307:Risk Factors; D013177:Sports; D013203:Staphylococcal Infections / Q000453:epidemiology / Q000209:etiology*; D013211:Staphylococcus aureus / Q000187:drug effects*