CDC advises some people to get 2 doses of new COVID vaccine

Some may have put COVID in the rearview mirror, but new research shows the virus that causes the disease is still constantly evolving and is as unpredictable as ever. Sara Machi reports. -----------------------------------------------------------------------------
CBS 2 News Chicago brings you breaking news, weather, compelling exclusive content and award-winning investigative reports from the CBS 2 Investigators. Subscribe to CBS 2 News Chicago on YouTube : youtube.com/user/cbschicago CBS 2 NEWS 24/7 LIVESTREAM: www.cbsnews.com/chicago/live/ CBS 2 NEWS ON PLUTO TV: pluto.tv/en/live-tv/62cdc75b1a1cbd0007ed45dc?gclid… CBS 2 NEWS WEBSITE: www.cbsnews.com/chicago/ FACEBOOK: www.facebook.com/cbschicago X (TWITTER): twitter.com/CBSchicago GET THE CBS 2 NEWS APP: apps.cbslocal.com/chicago/