Microbicide Dramatically Reduces HIV Infection Rate

1,000: The number of times the HIV infection rate of vaginal cells exposed to the virus was reduced by PRO 2000, a microbicide developed by Indevus Pharmaceuticals, according to a study in the January 1 issue of The Journal of Infectious Diseases. The gel also conveyed significant protection against herpes. PRO 2000 works by binding to the surface of HIV and preventing if from latching onto immune system cells.