A brigade of health professionals, who volunteered to travel to South Africa to assist local authorities with an upsurge of coronavirus cases, attend the farewell ceremony in Havana, Cuba, Saturday, April 25, 2020. (Photo by Ramon Espinosa/AP Photo)





Two women wearing masks as a precaution against the spread of the new coronavirus paint their nails at a home nail salon in Havana, Cuba, Tuesday, March 31, 2020. Cuban authorities are requiring the use of masks for anyone outside their homes. (Photo by Ramon Espinosa/AP Photo)





A man fishes on the beach amid concerns about the spread of the coronavirus disease (COVID-19), in Varadero, Cuba, April 10, 2020. (Photo by Alexandre Meneghini/Reuters)





Cowherd Arcia Mendoza, right, wearing a mask as a precaution against the spread of the new coronavirus greets another worker while herding the cows in Caimito, Cuba, Wednesday, April 22, 2020. Cuban authorities are requiring the use of masks for anyone outside their homes. (Photo by Ramon Espinosa/AP Photo)





A private taxi driver on an old American car wears a face mask as a preventive measure against the spread of the new coronavirus, COVID-19, while driving tourists around Havana, on March 19, 2020. (Photo by Yamil Lage/AFP Photo)





Liz Mariam, 6, receives instruction from her mother as she studies at home amid concerns about the spread of the coronavirus disease (COVID-19) outbreak, in Havana, Cuba, March 25, 2020. (Photo by Alexandre Meneghini/Reuters)





Elite Cuban triathlete Leslie Amat receives instructions from her coach during a training session on the roof of her home in Havana, Cuba, April 17, 2020. (Photo by Alexandre Meneghini/Reuters)





A family rides their tractor through the countryside wearing masks as a precaution against the spread of the new coronavirus in Havana, Cuba, Wednesday, April 8, 2020. Cuban authorities are requiring the use of masks for anyone outside their homes. (Photo by Ramon Espinosa/AP Photo)





A soldier washes the sidewalk with disinfectant amid concerns about the spread of the coronavirus disease (COVID-19) outbreak, in Havana, Cuba, April 15, 2020. (Photo by Alexandre Meneghini/Reuters)





A slushy street vendor, who uses a protective face mask when he has customers as a precaution against the spread of the new coronavirus, waits for them along the seawall, normally bustling with pedestrians, in Havana, Cuba, Friday, March 20, 2020. (Photo by Ramon Espinosa/AP Photo)





A girl wearing a protective face mask as a preventive measure against the spread of the new coronavirus ride a bicycle with her father in Havana, Cuba, Saturday, March 21, 2020. (Photo by Ramon Espinosa/AP Photo)





A man wearing a mask walks alongside a mural of Ernesto “Che” Guevara as other pedestrians are reflected in the side-view mirror of a car in Havana, Cuba, Tuesday, April 7, 2020. Cuban authorities are requiring people use masks outside their homes as a measure to help contain the spread of the new coronavirus. (Photo by Ramon Espinosa/AP Photo)





A woman wearing a mask as a precaution against the spread of the new coronavirus walks down the street in Havana, Cuba, Tuesday, March 31, 2020. Cuban authorities are requiring the use of masks for anyone outside their homes. (Photo by Ramon Espinosa/AP Photo)





Commuters wear face masks aboard a bus in Havana, on April 11, 2020. Cuba hit out at the United States on Friday over its nearly 60-year-old embargo against the island nation, which Havana described as “even more cruel” given the suffering caused by the new coronavirus pandemic. The communist-run single-party island is finding it tough to source medical supplies and has already recorded 620 coronavirus cases and 16 deaths. (Photo by Yamil Lage/AFP Photo)





Rosibel Toledano, 20, talks to a visitor (not pictured) under an image of late Cuban President Fidel Castro in a state building amid concerns about the spread of the coronavirus disease (COVID-19) outbreak, in Zaragoza, Cuba, April 28, 2020. (Photo by Alexandre Meneghini/Reuters)





Barber Eugenio Lafargue, reflected in a mirror wearing a protective face mask against a precaution against the spread of the new coronavirus, styles a customer's hair, in Havana, Cuba, Wednesday, March 25, 2020. (Photo by Ramon Espinosa/AP Photo)





Workers who repaint classic American cars wear masks as a precaution against the spread of the new coronavirus, as they rest at sunset in Wajay, Havana, Cuba, Thursday, April 23, 2020. Cuban authorities are requiring the use of masks for anyone outside their homes. (Photo by Ramon Espinosa/AP Photo)





Jose Zamora, 8, has a dove rubbed over his body during the Afro-Cuban religion Santeria ceremony amid concerns about the spread of the coronavirus disease (COVID-19) outbreak, in Havana, Cuba, March 28, 2020. (Photo by Alexandre Meneghini/Reuters)





Cuban Alejandro Lopez trains martial arts on the roof of his home in Havana on April 7, 2020. Due to the social isolation caused by COVID-19, many athletes excercise at home. Cuba has 350 cases of the new coronavirus. Some neighborhoods are quarantined, and more than 6,000 tourists who are still in the island remain isolated in hotels. (Photo by Yamil Lage/AFP Photo)





Farmer Miguel Torres picks sunflowers amid concerns about the spread of the coronavirus disease (COVID-19) outbreak, in Santiago de Las Vegas, Cuba, April 2, 2020. (Photo by Alexandre Meneghini/Reuters)