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HIV-infected vaginal cells do not transmit HIV if plasma viral load is undetectable, researchers find

Transmitted HIV drug resistance is persistent but is not harming treatment responses in the UK

Second analysis concludes that we can't eliminate the long-term possibility of HIV transmission from someone on treatment

Contraceptive injections and HIV infection risk – a public health conundrum

Dr Chelsea Polis of USAID presenting at CROI 2013.

Circumcision makes no difference to HIV infection in UK gay men

Low levels of innate immune activation and high levels of gut antibodies may protect people from HIV

Many men with undetectable HIV in blood still have low levels in their semen, studies find

Contraceptive injections and HIV transmission risk - what happens now?

Professor Jared Baeten, pictured presenting at the International AIDS Society conference in July. ©IAS/Marcus Rose/Worker's Photos

Unprotected sex eight times more common in serious relationships than casual ones, US gay youth study finds