In pics: Nucleic acid testing lab in U.S.(1/5)

Microbiologist Milagros Sola processes coronavirus disease (COVID-19) tests in a lab at Madigan Army Medical Center at Joint Base Lewis-McChord, Washington, U.S. April 14, 2020. (Photo/Agencies)

Microbiologist Milagros Sola processes coronavirus disease (COVID-19) tests in a lab at Madigan Army Medical Center at Joint Base Lewis-McChord, Washington, U.S. April 14, 2020.(Photo/Agencies)

A pouch for a coronavirus disease (COVID-19) test is pictured in a lab at Madigan Army Medical Center at Joint Base Lewis-McChord, Washington, U.S. April 14, 2020. (Photo/Agencies)

Personnel work inside of a tent at a coronavirus disease (COVID-19) drive-through testing site at Madigan Army Medical Center at Joint Base Lewis-McChord, Washington, U.S. April 14, 2020. (Photo/Agencies)

Personnel work near folded scrubs inside of a tent at a coronavirus disease (COVID-19) drive-through testing site at Madigan Army Medical Center at Joint Base Lewis-McChord, Washington, U.S. April 14, 2020. (Photo/Agencies)