(CNN) As US coronavirus cases soar and people seek tests ahead of Thanksgiving travel, long lines are forming outside testing sites around the country, appointments are filling up, and commercial labs are warning that their capacities are being stretched. In Seattle, four city-run testing sites recently went from accommodating more than 3,000 people per day to more than 5,000, Seattle fire Capt. Brian Wallace, who also is the city's Covid-19 testing coordinator, told CNN affiliate KIRO on Tuesday. People wait in a line stretching around a block outside an urgent care clinic offering Covid-19 testing in Brooklyn, New York, on Wednesday. People wait in line for Covid-19 tests offered by the Community Organized Relief Effort, a non-profit organization in Chicago's Englewood neighborhood, on November 12.

Source: CNN November 20, 2020 18:22 UTC