Grain and fertilizer shortages, higher shipping costs and a strong dollar are all pushing food prices up and increasing hunger in dozens of vulnerable countries.

Where it’s risky for aid workers to be on the ground, technology could help.

The damage from storms, droughts and sea level rise is in the news almost daily. Some money is flowing to help poor countries, but what isn’t clear is how much impact the funds are having.

New details about the structure of the HIV virus may help in the design and development of a vaccine that can protect against AIDS.

Black American women have disproportionate HIV infection rates – in part because of systemic and structural racism in the health care system.

Schools have not adequately educated students about the increased risks of virus transmission when it comes to being sexually intimate.