From PBS NewsHour.

South Carolina is experiencing one of the biggest measles outbreaks the U.S. has seen in decades. In that state, there are 876 confirmed cases of the highly contagious virus, which is preventable with a vaccine. While the current surge may be slowing, doctors warn there are still serious risks for vulnerable populations. William Brangham speaks with epidemiologist Katelyn Jetelina for more.

Watch PBS News for daily, breaking and live news, plus special coverage. We are home to PBS News Hour, ranked the most credible and objective TV news show.

Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG
Find more from PBS NewsHour at https://www.pbs.org/newshour
Subscribe to our YouTube channel: https://bit.ly/2HfsCD6

Follow us:
TikTok: https://www.tiktok.com/@pbsnews
X (formerly Twitter): http://www.twitter.com/newshour
Instagram: http://www.instagram.com/newshour
Facebook: http://www.pbs.org/newshour

Subscribe:
PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts
Newsletters: https://www.pbs.org/newshour/subscribe