HIV Vaccine Said to Be Effective

A vaccine that attacks HIV at a vulnerable moment of the deadly virus’ infection cycle has been shown to be effective in laboratory tests, researchers say. In studies at the University of Montana, researchers developed antibodies in mice that attacked HIV, the virus that causes AIDS, just as the virus was in the process of fusing with target cells. A report on the study is being published today in the journal Science. This fusion process, the researchers said, exposed HIV molecules that are not open to attack at other times in the infection cycle.