Emergence of Multidrug-Resistant, Community-Associated, Methicillin-Resistant Staphylococcus aureus Clone USA300 in Men Who Have Sex with Men

  1. Binh An Diep, PhD;
  2. Henry F. Chambers, MD;
  3. Christopher J. Graber, MD, MPH;
  4. John D. Szumowski, MD, MPH;
  5. Loren G. Miller, MD, MPH;
  6. Linda L. Han, MD;
  7. Jason H. Chen, BA;
  8. Felice Lin, BA;
  9. Jessica Lin, BA;
  10. Tiffany HaiVan Phan, BA;
  11. Heather A. Carleton, MPH;
  12. Linda K. McDougal, MS;
  13. Fred C. Tenover, PhD;
  14. Daniel E. Cohen, MD;
  15. Kenneth H. Mayer, MD;
  16. George F. Sensabaugh, DCrim; and
  17. Françoise Perdreau-Remington, PhD
  1. From the University of California, San Francisco, San Francisco, Harbor-University of California, Los Angeles, Medical Center, Torrance, and University of California, Berkeley, Berkeley, California; Beth Israel Deaconess Medical Center, Massachusetts Department of Public Health, and The Fenway Institute of Fenway Community Health, Boston, Massachussetts; Centers for Disease Control and Prevention, Atlanta, Georgia; and Brown University and Miriam Hospital, Providence, Rhode Island.
    1. Figure.
      View larger version:
      Figure. Annual incidence of multidrug-resistant USA300 infection and percentage of male same-sex couples, by San Francisco ZIP code.

      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.

    Responses to this article

    • Reply to Katz et al.
      • Binh An Diep and
      • Henry F. Chambers, MD
      Ann Intern Med published online October 26, 2009
    • Ascertainment bias and incidence of MDR CA-MRSA clone USA 300 infections in San Francisco
      • Kenneth A. Katz and
      • Kyle T. Bernstein, Jeffrey D. Klausner
      Ann Intern Med published online October 26, 2009
    • Other Communities at Risk as well
      • Arlen J Peterson
      Ann Intern Med published online October 26, 2009
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    1. Ann Intern Med February 19, 2008 vol. 148 no. 4 249-257
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