COVID-19 human challenge trials come with controversy and promise | USA TODAY

From USA TODAY.

How human challenge trials may help create a COVID-19 vaccine.
RELATED: COVID deaths of Native Americans linked to limited access to resources and healthcare https://youtu.be/XHp8CxaxmqY

Infecting young, healthy people with COVID-19 is an important, but controversial, part of creating a viable vaccine.

» Subscribe to USA TODAY: http://bit.ly/1xa3XAh
» Watch more on this and other topics from USA TODAY: http://bit.ly/2SGVh9f
» USA TODAY delivers current local and national news, sports, entertainment, finance, technology, and more through award-winning journalism, photos, videos and VR.

#covidvaccine #covidtrials #usatoday