During a tense Congressional hearing on Friday, Dr. Anthony Fauci said he feels “cautiously optimistic” that a coronavirus vaccine could be ready by the end of the year or early 2021.

» Subscribe to NBC News:
» Watch more NBC video:

NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features NBCNews.com, MSNBC.com, TODAY.com, Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journalism and segments from your favorite NBC News Shows.

Connect with NBC News Online!
NBC News App:
Breaking News Alerts:
Visit NBCNews.Com:
Find NBC News on Facebook:
Follow NBC News on Twitter:
Follow NBC News on Instagram:

CDC: U.S. Coronavirus Death Toll Could Reach 180,000 By End Of August | NBC News NOW