Metal oral piercings (as opposed to plastic) may increase the risk of bacterial infection, according to a study published in the Journal of Adolescent Health .

Scientists have discovered how the HIV virus manages to survive inside immune cells by changing the HIV virus' molecular "diet" and then replicating with the help of an unexpected compound.

Individuals with HIV may be up to three times more likely to suffer stroke than the general population, according to a recent study.

Australian scientists have achieved the most detailed and vivid images of the malaria parasite invading red blood cells ever to be captured, offering a glimpse into how the mosquito-borne illness works.

With E. coli bacterial contamination a potential problem in both drinking and recreational water supplies, a new laser technique to provide faster and better analyses of rivers, beaches and lakes is a welcome new tool.

Scientists have finally developed a complete model of the HIV virus's outer shell, a process that took years because of the virus's "tricky" proteins.