In summary, we show that multidrug-resistant USA300 has emerged as an important source of disease among men who have sex with men in 2 geographically distinct communities. The high proportion of infection involving the buttocks, genitals, and perineum suggests that community-associated MRSA may be transmitted in the setting of sexual contact among men who have sex with men. The link among USA300, multidrug-resistant USA300, and unsafe sexual risk behaviors should be evaluated further in prospective studies.<ref>http://www.annals.org/cgi/content/full/0000605-200802190-00204v1</ref>}} | In summary, we show that multidrug-resistant USA300 has emerged as an important source of disease among men who have sex with men in 2 geographically distinct communities. The high proportion of infection involving the buttocks, genitals, and perineum suggests that community-associated MRSA may be transmitted in the setting of sexual contact among men who have sex with men. The link among USA300, multidrug-resistant USA300, and unsafe sexual risk behaviors should be evaluated further in prospective studies.<ref>http://www.annals.org/cgi/content/full/0000605-200802190-00204v1</ref>}} |