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 …

Background The human immunodeficiency virus (HIV) infectiousness of anal intercourse (AI)
has not been systematically reviewed, despite its role driving HIV epidemics among men …

We did a systematic review and meta-analysis of observational studies of the risk of HIV-1
transmission per heterosexual contact. 43 publications comprising 25 different study …

Transmission through sexual contact accounts for 75 to 85 percent of the nearly 28 million
infections with the human immunodeficiency virus (HIV) that have occurred so far. 1 The …

The consistent use of latex condoms continues to be advocated for primary prevention of
HIV infection despite limited quantitative evidence regarding the effectiveness of condoms in …

The risk of human immunodeficiency virus (HIV) transmission from various types of
homosexuel contact, including oral sex, is of biologic, epidemiologic, and public health …

A mutant allele of the β-chemokine receptor gene CCR5 bearing a 32-basepair (bp) deletion
(denoted Δ ccr5) which prevents cell invasion by the primary transmitting strain of HIV-1 has …

Reducing the Risk of Sexual HIV Transmission: Quantifying th... : Sexually Transmitted
Diseases Reducing the Risk of Sexual HIV Transmission: Quantifying the Per-Act Risk for HIV …

Objective: The objective of this study is to estimate per-contact probability of HIV
transmission in homosexual men due to unprotected anal intercourse (UAI) in the era of …

Some individuals remain uninfected with human immunodeficiency virus type–1 (HIV–1)
despite multiple high–risk sexual exposures. We studied a cohort of 25 subjects with …