A dangerous Covid-19 variant has spread to all 50 US states. Experts worry it could send cases surging
Illinois bar opening event linked to 46 Covid-19 cases, a school closure and hospitalization, CDC report says
Another US Covid-19 surge may look different, experts say, particularly for younger people. Here's how
Traumatizing details of George Floyd's death were shown in court. Experts weigh in on who should -- and shouldn't -- see them
