BACKGROUND Anal cancer is caused by human papillomavirus (HPV), yet little is known about anal HPV infection among healthy young women. METHODS A total of 2017 sexually active women in the control arm of an HPV-16/18 vaccine trial had a single anal specimen collected by a clinician at the 4-year study visit. Samples were tested for HPV by SPF(10) PCR/DEIA/LiPA(25), version 1. RESULTS A tota...

OBJECTIVES Self-reported anal intercourse by female sex workers (FSWs) documented in recent studies from India range between 11.9% and 22%. However, comparable data on anal intercourse and condom use from male clients of FSWs is lacking. Using data from a bio-behavioural survey (2009-2010), we examined prevalence of anal intercourse, male clients' self-reported inconsistent condom use during an...

BACKGROUND Anogenital human papillomavirus (HPV) is common among men who have sex with men (MSM) and causes anal cancer. This study examined the determinants of initial anogenital HPV infection among teenage MSM. METHODS Two hundred MSM aged 16 to 20 years were recruited via community and other sources. Men were tested for HPV DNA from the anus and penis. RESULTS The proportion of men with ...

While brothel-based sex work is regulated by the Peruvian government, there is little data on STI risk factors reported by female sex workers (FSW). This study compared high risk behaviors among 120 Peruvian FSW from government regulated brothels with both clients and non-commercial partners. Our study found that 12% of FSW reported unprotected vaginal sex with clients (compared to 75% with non...

BACKGROUND Despite preventive efforts, HIV incidence remains high among men who have sex with men (MSM) in industrialized countries. Condoms are an important element in prevention but, given the high frequency of condom use and their imperfect effectiveness, a substantial number and proportion of HIV transmissions may occur despite condoms. We developed a model to examine this hypothesis. MET...

In US men, the incidence of anal cancer, the primary cause of which is human papillomavirus (HPV) infection, has increased almost 3-fold in 3 decades; however, little is known about the epidemiology of anal HPV infection, especially in heterosexual men. In 2 US cities, behavioral data and anal biological specimens were collected from 253 men who acknowledged having engaged in sexual intercourse...

OBJECTIVE There are limited data on the patterns of early sexual behaviours among Australian teenage heterosexual boys. This study describes the nature and onset of early sexual experiences in this population through a cross-sectional survey. DESIGN A cross-sectional survey between 2014 and 2015 SETTING: Major sexual health clinics and community sources across Australia PARTICIPANTS: Heterose...

The burden of human immunodeficiency virus (HIV) is high among gay, bisexual, and other men who have sex with men (MSM). High HIV prevalence, lack of awareness of HIV-positive status, unprotected anal sex, and increased viral load among HIV-positive MSM not on antiretroviral treatment contribute substantially to new infections among this population. CDC analyzed data from the National HIV Surve...

Fisher D, Ryan R, et al. (1999). Using a community partnership and motivational interviewing to serve HIV+ gay and bisexual men. National HIV Prevention Conference, 1999 [Abstract no. 680]. HIV+ Preliminary report. 107 HIV+ MSM who had anal sex in preceding 4 months with a male partner. Using motivational interviewing, assess values, beliefs, attitudes, and details on 4 most recent anal sex par...

OBJECTIVES : To identify social and behavioral characteristics associated with sexual risk behaviors among male sex workers who sell sex to men in Mombasa, Kenya. METHODS : Using time-location sampling, 425 men who had recently sold, and were currently willing to sell sex to men were invited to participate in a cross-sectional survey. A structured questionnaire was administered using handheld...