Doctors in South Africa performed a liver transplant from an HIV-positive donor to a HIV-negative recipient. Major ethical questions came into play.
Stigma stops people from getting tested for HIV, and staying on their treatment. Unless it's addressed, the AIDS epidemic will persist.
Up to 50% of the people who take the efavirenz antiretroviral react particularly badly to it and need to change drug regimens.
Current epidemiological and financial trends suggest there's a major risk of a substantial shortfall in the funds required to sustain life-saving antiretroviral programmes.
Young women in southern Africa are most at risk of becoming infected with HIV. If they take a pre-exposure prophylaxis like Truvada it could change their lives.