Heterosexual risk of HIV infection in China: systematic review and meta-analysis.

Background: Heterosexual sex has become the dominant transmission route in China. Recently studies reported high heterogeneity in heterosexual transmission risk in resource-limited countries. The aim of this study was to summarize the risk of HIV transmission among Chinese serodiscordant couples.

[Study on the feasibility and related factors on semen samples from condoms, collected from sexual partners of and by the female sex workers for HIV-antibody testing].

Objective: To explore the feasibility and related factors of using semen samples from condoms collected by their female sex workers (FSWs) for HIV-antibody testing.

Methods: FSWs were recruited by outreach workers. Semen samples from condoms of their sexual partners (paid or regular) were collected by FSWs themselves after intercourse and for HIV testing.