ScienceWorld AIDS Day: A vaccine against HIV?To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience12/01/2016December 1, 2016A pivotal trial for a vaccine against HIV has launched in South Africa. Scientists said that if it's successful, it could change the course of the pandemic. Results are expected in 2020. https://p.dw.com/p/2TZKcAdvertisement