Sarah Glick, helps her son Harrison, 3, by swabbing his nose while getting tested for COVID-19 at the Curative testing van parked off Wightman Street in the Squirrel Hill neighborhood of Pittsburgh, Tuesday, December 28, 2021. Ms. Glick said they were getting tested as a precaution before visiting her mother. (Photo by Alexandra Wimley/Pittsburgh Post-Gazette via AP Photo)
