Large-scale HIV vaccine trial to begin in South Africa: U.S. agency

A large-scale clinical trial will begin in South Africa later this year to test the safety and efficacy of a promising investigational HIV vaccine regimen, a U.S. government health agency said Wednesday.

A smaller initial trial in South Africa has determined that the regimen consisting of two experimental vaccines is safe and produces a robust immune response, the U.S. National Institute of Allergy and Infectious Diseases (NIAID) said in a statement.