CDC expands omicron testing to four airports as direct flights continue from South Africa

A COVID-19 testing facility is advertised at Newark Liberty International Airport on Tuesday, Nov. 30, 2021 in Newark, New Jersey. The United States, and a growing list of other countries, has restricted flights from southern African countries due to the detection of the COVID-19 Omicron variant last week in South Africa. Stocks in the travel and airline industry have fallen in recent days as fears grow over the spread and severity of the variant. (Spencer Platt/Getty Images/TNS)

The Centers for Disease Control and Prevention has expanded testing for the omicron variant of the coronavirus to four U.S. airports, including ones that continue to receive direct flights from South Africa, where the mutation was first identified.