Cleaning personnel wearing protective face masks and fire fighters walk past a field hospital set-up outside the Gregorio Maranon Hospital in Madrid on April 01, 2020. OSCAR DEL POZO / AFP of the Gregorio Maranon Hospital in Madrid on April 1, 2020, during a national lock-down to prevent the spread of the new coronavirus. - Spain confirmed another 864 deaths in 24 hours from the coronavirus today, bringing the total number of deaths to more than 9000. (Photo by OSCAR DEL POZO / AFP)

Cleaning personnel wearing protective face masks and fire fighters walk past a field hospital set-up outside the Gregorio Maranon Hospital in Madrid on April 01, 2020, during a national lock-down to prevent the spread of the new coronavirus. - Spain confirmed another 864 deaths in 24 hours from the coronavirus today, bringing the total number of deaths to more than 9000. (Photo by OSCAR DEL POZO / AFP)

A fireman wearing a face mask leaves a field hospital set-up outside the Gregorio Maranon Hospital in Madrid on April 01, 2020, during a national lock-down to prevent the spread of the new coronavirus. - Spain confirmed another 864 deaths in 24 hours from the coronavirus today, bringing the total number of deaths to more than 9000. (Photo by OSCAR DEL POZO / AFP)