Background: HIV incidence in the United States among men who have sex with men (MSM)
has been increasing since 2000, and MSM remain the most heavily impacted risk group in …

In this work, we estimate the proportions of transmissions occurring in main vs. casual
partnerships, and by the sexual role, infection stage, and testing and treatment history of the …

Objectives: Risk factors for HIV acquisition were examined in a recent cohort of men who
have sex with men (MSM). Design: A longitudinal analysis of 4295 HIV-negative MSM …

Objectives. We sought to identify HIV-infection risk factors related to partner selection and
sexual behaviors with those partners among men who have sex with men (MSM) in King …

Objectives. We assessed differences in HIV prevalence and sexual risk behavior among
men who have sex with men (MSM) between 1997 and 2002 in San Francisco. Methods. We …

Background: Effective HIV prevention programs rely on accurate estimates of the per-act risk
of HIV acquisition from sexual and parenteral exposures. We updated the previous risk …

Objective: Young men who have sex with men (MSM) and MSM of color have the highest
HIV incidence in the United States. To explore possible explanations for these disparities …

Determining rates of HIV transmission risk behavior among HIV-positive individuals is a
public health priority, especially as infected persons live longer because of improved …

HIV diagnoses among men who have sex with men (MSM) have been increasing in several
high-income countries. A better understanding of the sexual behavior trends among MSM …

Background: Sexually transmitted infections (STI) and unprotected anal intercourse (UAI)
have been increasing among men who have sex with men (MSM) in San Francisco …