
How Scientists Developed a Drug to Prevent HIV
Clip: Season 49 Episode 11 | 3m 5sVideo has Closed Captions
The development of PrEP was a breakthrough in HIV prevention.
Here's how scientists developed a once-a-day pill that reduced the risk of sexually transmitted HIV transmission by 99%, a breakthrough that transformed the course of the HIV/AIDS epidemic.
Additional funding is provided by the NOVA Science Trust with support from Roger Sant. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting , and PBS viewers.

How Scientists Developed a Drug to Prevent HIV
Clip: Season 49 Episode 11 | 3m 5sVideo has Closed Captions
Here's how scientists developed a once-a-day pill that reduced the risk of sexually transmitted HIV transmission by 99%, a breakthrough that transformed the course of the HIV/AIDS epidemic.
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Learn Moreabout PBS online sponsorshipVideo has Closed Captions
Can innovative drugs and therapies finally end HIV? (30s)
Providing Support for PBS.org
Learn Moreabout PBS online sponsorshipAdditional funding is provided by the NOVA Science Trust with support from Roger Sant. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting , and PBS viewers.