In the race to develop a COVID-19 vaccine, controversial human challenge trials are being considered.
Thousands of young people have already signed up to put their lives on the line for a coronavirus cure; CBS2's Natalie Duddridge reports.
Race to create a vaccine
KTNV Channel 13 Las Vegas
The race to create a coronavirus vaccine is picking up. 17 possible vaccines are in clinical evaluation, with one already in..
