Full story at tonic.com:
The most powerful of the three antibodies neutralizes 91 percent of HIV strains. Previously, the most broadly disabling antibody only neutralized 40 percent of strains. The results of this study, plus another study looking into the antibody-making capabilities in animals will lead researchers closer to a successful HIV vaccine than ever before.
In the last attempt at an HIV vaccine, trials in Thailand only showed a 30 percent reduction in the incidence of infection. That vaccine, however, was not designed to create new antibodies, something the developers are tying to do in this case.