prevalence of usa300 colonization or infection and associated variables during an outbreak of community-associated methicillin-resistant staphylococcus aureus in a marginalized urban population
BACKGROUND: In 2004, an outbreak of the USA300 strain of methicillin-resistant Staphylococcus aureus (MRSA) was identified in persons with histories of homelessness, illicit drug use or incarceration in the Calgary Health Region (Calgary, Alberta). A prevalence study was conducted to test the hypotheses for factors associated with USA300 colonization or infection.