A patient lays in a bed in the emergency room of Roseland Community Hospital as the coronavirus disease (COVID-19) continues, on the South Side of Chicago, Illinois, US, April 22, 2020. [Photo/Agencies]

A sign warning of the spread of the coronavirus disease (COVID-19) is seen in front of the closed Chicago Board of Trade in Chicago, Illinois, US, April 23, 2020. [Photo/Agencies]

Cyclists ride down Huntington City Beach during the outbreak of the coronavirus disease (COVID-19) in Huntington Beach, California, US, April 25, 2020. [Photo/Agencies]

Workers wearing personal protective equipment (PPE) perform drive-up COVID-19 testing administered from a car at Mend Urgent Care testing site for the novel coronavirus at the Westfield Culver City on April 24, 2020 in the Culver City neighborhood of Los Angeles, California. [Photo/Agencies]

Emergency Medical Services paramedics unload a patient at NYU Langone Hospital-Brooklyn, during the outbreak of the coronavirus disease (COVID-19) in the Brooklyn borough of New York, US, April 24, 2020. [Photo/Agencies]