Binh An Diep, PhD; Henry F. Chambers, MD; Christopher J. Graber, MD, MPH; John D. Szumowski, MD, MPH; Loren G. Miller, MD, MPH; Linda L. Han, MD; Jason H. Chen, BA; Felice Lin, BA; Jessica Lin, BA; Tiffany HaiVan Phan, BA; Heather A. Carleton, MPH; Linda K. McDougal, MS; Fred C. Tenover, PhD; Daniel E. Cohen, MD; Kenneth H. Mayer, MD; George F. Sensabaugh, DCrim; Françoise Perdreau-Remington, PhD
Diep BA, Chambers HF, Graber CJ, Szumowski JD, Miller LG, Han LL, et al. Emergence of Multidrug-Resistant, Community-Associated, Methicillin-Resistant Staphylococcus aureus Clone USA300 in Men Who Have Sex with Men. Ann Intern Med. 2008;148:249-257. doi: 10.7326/0003-4819-148-4-200802190-00204
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Published: Ann Intern Med. 2008;148(4):249-257.
Researchers have recently identified multidrug-resistant USA300, a clone of community-acquired, methicillin-resistant Staphylococcus aureus (MRSA) that is resistant to multiple antibiotics.
The authors demonstrate that the incidence of multidrug-resistant USA300 MRSA is highest in the areas of San Francisco where more male same-sex couples reside. The infection frequently manifests as an abscess or cellulitis in the buttocks, genitals, or perineum, and male–male sex was a risk factor.
Data were passively reported or retrospectively collected and are therefore subject to bias.
Multidrug-resistant USA300 MRSA infection is especially common among men who have sex with men. It might be sexually transmitted in this population.
The key indicates the annual incidence of multidrug-resistant USA300 infection per 100 000 persons. The number within each ZIP code is the percentage of male same-sex couples, calculated by dividing the number of male same-sex, unmarried-partner households by the number of coupled (married and unmarried) households for each ZIP code, based on 2000 U.S. Census (Summary File 3) data (33). *Location of the San Francisco General Hospital HIV clinic.
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