An important clinical trial of a microbicide using the Gilead anti-retroviral drug Tenofovir has shown the gel to be safe and effective for women. The study comes after trials of 2 microbicides actually resulted in an increase in rates of transmission of HIV. The scientists claim that it is too early to tell how effective the gel will be in preventing transmission of HIV, and that this Phase II trial was merely to demonstrate the safety of the microbicide, rather than its efficacy. Something to keep a very close eye on in the future!
*Note that I believe this is a DIFFERENT microbicide than the "Carraguard" that others are expressing disappointment about.