New antiretroviral injection shows promise for HIV prevention

In a finding that could represent a major breakthrough in HIV prevention efforts, two groups of researchers working with an experimental antiretroviral injection found 100% protection in monkeys treated with the drug. 

Evidence from the trials suggests that the drug maintains its effectiveness even when used once every three months, reducing the problem of patients failing to take daily doses. While larger trials remain years away, a preliminary study with human subjects is set to begin later this year at Columbia University's Mailman School of Public Health.