Americans should assume they are infected with the coronavirus — and get tested — if they traveled and attended large gatherings for Thanksgiving, Dr. Deborah Birx warned over the weekend.

In a Sunday interview with CBS anchor Margaret Brennan on “Face the Nation,” the White House coronavirus task force coordinator urged anyone who gathered for the holiday to get tested within the next few days.

“We know people may have made mistakes over the Thanksgiving time period,” Birx said in an interview with “Face the Nation.” “If you’re young and you gathered, you need to be tested about five to 10 days later. But you need to assume that you’re infected and not go near your grandparents and aunts and others without a mask.”

“We’re really asking families to even mask indoors if they chose to gather during Thanksgiving and others went across the country or even into the next state,” she added.

Anyone over 65 years old who gathered for Thanksgiving and develops symptoms should be “tested immediately” because the available medications, as well as treatments, “work best very early in disease,” she said.

Dr. Birx Warns Thanksgiving Travelers