Vials used in the test to detect the presence of COVID-19 are seen at a testing site affiliated with the Methodist Health System, in Omaha, Neb., Friday, April 24, 2020. (AP Photo/Nati Harnik)
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Vials used in the test to detect the presence of COVID-19 are seen at a testing site affiliated with the Methodist Health System, in Omaha, Neb., Friday, April 24, 2020. (AP Photo/Nati Harnik)
