High plasma HIV-1 RNA concentrations are associated with an increased risk of HIV-1
transmission. Although plasma and genital HIV-1 RNA concentrations are correlated, no …

Results: The mean age of the subjects was 37 and 40 years; mean CD4 cell count was 222
and 276 cells/μl and the mean plasma viral load was 4.7 and 3.0 log 10 copies/ml for HIV-1 …

Background The risk of sexual transmission of HIV-1 is strongly associated with the level of
HIV-1 RNA in plasma making reduction in HIV-1 plasma levels an important target for HIV-1 …

High levels of human immunodeficiency virus (HIV) in rectal secretions and semen likely
increase the risk of HIV transmission. HIV-infected men who have sex with men made 2–3 …

Summary Background Plasma HIV-1 RNA concentration has been the best predictor for risk
of heterosexual and perinatal transmission. However, direct contact with HIV-1 present …

Objective: Combination antiretroviral therapy (ART) decreases the risk of sexual HIV
transmission by suppressing blood and genital HIV RNA concentrations. We sought to …

Objectives: This study was conducted to compare viral dynamics in blood and semen
between subjects with antibody negative, acute HIV-1 infection and other subjects with later …

We evaluated the association between HIV-1 RNA copies/mL in men and heterosexual
transmission to their female partners among 493 couples in Thailand. Husbands were …

Objective: To determine the patterns and predictors of genital tract HIV-1 RNA levels during
a 36-month period. Methods: HIV-1 RNA levels were measured blood in plasma and the …

Background: To assess HIV burden in both acellular and cellular fractions of semen in men
with different levels of blood plasma HIV RNA by a cross-sectional study. Patients: Fifty-two …