CDC

Updated ET, Sat ,

The new guidance comes as airlines have had to cancel thousands of flights​ in the last week. ...
CDC officials cut isolation restrictions for Americans who catch the COVID-19 from 10 to five days, and similarly shortened the time that close contacts need to quarantine. ...
The CDC released new guidance recommending asymptomatic people now isolate for five days rather than 10 days. It comes as soaring Covid cases trigger hundreds of flight cancellations for holiday travelers. Meantime, President Biden vowed to give full federal support to governors today but that the next steps in fighting the Omicron variant should be taken at the state level.  ...
The U.S. Centers for Disease Control and Prevention severely revised its estimate of the prevalence of the Omicron variant on Tuesday. Previously the CDC had estimated that as many as 73.2% of coronavirus cases nationwide were due to the Omicron variant on Dec. 18. The new estimate dials it down... ...

( )