Serosorting does help prevent HIV – up to a point
Treatment as prevention is starting to work in parts of Africa
Poor adherence to HIV PEP after sexual assault
Circumcision reduces HIV incidence in Ugandan men and herpes prevalence in South Africans
Tenofovir rectal microbicide safe; may have direct effect on tissues as well as virus
A new patient zero? Researchers may have spotted animal-to-human immunodeficiency virus transfer
