The authoritative Science journal named the improved medicine for AIDS a scientific breakthrough of the year. Full story

There's a dark side to any joy under the sun, and while there are some who spend their lives trying to walk warily in an attempt to avoid all the dangers, there are also those who believe that instead of being overcautious it's better to be philosophical about potential hazards which may never come your way. Full story

US scientists report the invention of a vaginal gel that is supposed to protect women from the possibility of a HIV infection during a sexual intercourse. Women are to introduce the vaginal gel in before they engage in sex; Full story