HIV vaccine in 2021? Leading experts ‘optimistic’ about ongoing trials

NBC News — On Sunday, World AIDS Day, the global fight against the human immunodeficiency virus is poised to make important advances thanks to three experimental HIV vaccines that are entering the final stages of testing at sites across the globe.
While any of these three late-stage HIV vaccine trials — known as HVTN 702, Imbokodo and Mosaico — could fail, scientists say they are more hopeful than at any time since 1984, when Secretary of Health and Human Services Margaret Heck