UK study begins human trials
The UK says it will be the first to conduct COVID-19 vaccine human challenge trials.
It's different than other vaccine studies.
How COVID-19 human challenge trials work -- and why I volunteered | Sophie RoseIn April 2020, epidemiologist-in-training Sophie Rose volunteered to be infected with the virus that causes COVID-19. As a young, healthy adult, she's offering to take part in a human challenge trial,..