The Centers for Disease Control and Prevention changed its recommendations. Now it says people without coronavirus symptoms need to quarantine for 10 days, or seven — if they then test negative.
The company said the trial would involve children ages 12 through 17.
Social distancing fell dramatically between spring and fall and the gap between Democrats and Republicans widened. But both ends of the political spectrum agree on some measures to fight COVID-19.
Health-care workers will be vaccinated first. For now, they’re handling a surge in hospitalizations.
Nearly 100,000 people in the United States entered hospitals with covid-19 on Tuesday.