Injections, Implants Tested As New Weapons To Prevent HIV
Scientists are taking the battle to prevent HIV to the next level with large-scale trials set to start using injections to protect vulnerable groups such as gay men and women in Africa for at least two months.

Further down the road, the hope is to produce matchstick-sized implants containing slow-release drugs - similar to existing under-the-skin contraceptive devices - that could offer year-long protection....