HIV research has encountered quite a few setbacks, especially with attempts to create an HIV vaccination. But topical microbicides made from glycerol monolaurate, commonly found in some foods and cosmetics, are showing some promise. What mechanisms of microbicides may help successfully prevent infection, including HIV and other sexually transmitted infections? Dr. Patrick Schlievert, professor of microbiology and immunology at the University of Minnesota Medical School, explains the exciting potential of topical microbicides for preventing the transmission of sexually transmitted infections and HIV. How soon might one of these topical microbicides be available, if they are further proved to have efficacy? Dr. Lee Freedman hosts.