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A Community-Based Study of Staphylococcus aureus Nasal Colonization and Molecular Characterization Among Men Who Have
Nina S Leung1, Michelle L Vidoni1, D Ashley Robinson2
11 Department of Epidemiology, Human Genetics, and Environmental Sciences, Center for Infectious Diseases, University of Texas Health Science Center , Houston, Texas.
Purpose:
The aims of this cross-sectional study were to determine the prevalence of Staphylococcus aureus nasal colonization, evaluate community-related behavioral risk factors, and utilize staphylococcal protein A (spa) typing for epidemiological surveillance among community-based men who have sex with men from the National HIV Behavioral Surveillance System in Houston, Texas.
Methods:
Descriptive methods and logistic analyses were used to determine associations with nasal colonization.
Results:
The prevalence of S. aureus colonization was 29.7%; of these, 3.0% were colonized with methicillin-resistant S. aureus. Logistic analyses revealed that anal intercourse practices were associated with colonization (P < 0.05). A diverse population of 38 spa types was identified.
Conclusion:
Our findings suggest that an association among preferential sex practices, condom use, and S. aureus colonization exists and should be investigated further.