New York Fire Department (FDNY) firemen don personal protective equipment before going into the Cobble Hill Health Center nursing home during an ongoing outbreak of the coronavirus disease (COVID-19) in the Brooklyn borough of New York, U.S., April 17, 2020. REUTERS/Lucas Jackson

New York Fire Department (FDNY) firemen clean themselves after going into the Cobble Hill Health Center nursing home to assist Emergency Medical Technicians (EMTs) during an ongoing outbreak of the coronavirus disease (COVID-19) in the Brooklyn borough of New York, U.S., April 17, 2020. REUTERS/Lucas Jackson

New York Fire Department (FDNY) firemen clean themselves after going into the Cobble Hill Health Center nursing home to assist Emergency Medical Technicians (EMTs) during an ongoing outbreak of the coronavirus disease (COVID-19) in the Brooklyn borough of New York, U.S., April 17, 2020. REUTERS/Lucas Jackson

New York Fire Department (FDNY) firemen clean themselves after going into the Cobble Hill Health Center nursing home to assist Emergency Medical Technicians (EMTs) during an ongoing outbreak of the coronavirus disease (COVID-19) in the Brooklyn borough of New York, U.S., April 17, 2020. REUTERS/Lucas Jackson

New York Fire Department (FDNY) firemen clean themselves after going into the Cobble Hill Health Center nursing home to assist Emergency Medical Technicians (EMTs) during an ongoing outbreak of the coronavirus disease (COVID-19) in the Brooklyn borough of New York, U.S., April 17, 2020. REUTERS/Lucas Jackson

New York Fire Department (FDNY) firemen don personal protective equipment as they enter the Cobble Hill Health Center nursing home during an ongoing outbreak of the coronavirus disease (COVID-19) in the Brooklyn borough of New York, U.S., April 17, 2020. REUTERS/Lucas Jackson

New York Fire Department (FDNY) firemen remove personal protective equipment after going into the Cobble Hill Health Center nursing home to assist Emergency Medical Technicians (EMTs) during an ongoing outbreak of the coronavirus disease (COVID-19) in the Brooklyn borough of New York, U.S., April 17, 2020. REUTERS/Lucas Jackson

New York Fire Department (FDNY) firemen remove personal protective equipment after going into the Cobble Hill Health Center nursing home to assist Emergency Medical Technicians (EMTs) during an ongoing outbreak of the coronavirus disease (COVID-19) in the Brooklyn borough of New York, U.S., April 17, 2020. REUTERS/Lucas Jackson

New York Fire Department (FDNY) firemen don personal protective equipment before going into the Cobble Hill Health Center nursing home during an ongoing outbreak of the coronavirus disease (COVID-19) in the Brooklyn borough of New York, U.S., April 17, 2020. REUTERS/Lucas Jackson

New York Fire Department (FDNY) firemen remove personal protective equipment after going into the Cobble Hill Health Center nursing home to assist Emergency Medical Technicians (EMTs) during an ongoing outbreak of the coronavirus disease (COVID-19) in the Brooklyn borough of New York, U.S., April 17, 2020. REUTERS/Lucas Jackson

New York Fire Department (FDNY) firemen remove personal protective equipment after going into the Cobble Hill Health Center nursing home to assist Emergency Medical Technicians (EMTs) during an ongoing outbreak of the coronavirus disease (COVID-19) in the Brooklyn borough of New York, U.S., April 17, 2020. REUTERS/Lucas Jackson

Firemen raise a flag between firetrucks for a colleague lost to the coronavirus during the outbreak of coronavirus disease (COVID-19) in a in Long Island, New York, U.S., April 14, 2020. REUTERS/Caitlin Ochs

San Francisco firemen, paramedics and police wearing protective face masks amid an outbreak of the coronavirus disease (COVID-19), treat an overdose victim in the Tenderloin district of San Francisco, California, U.S. March 24, 2020. Picture taken March 24, 2020. REUTERS/Shannon Stapleton

San Francisco firemen, paramedics and police wearing protective face masks amid an outbreak of the coronavirus disease (COVID-19), treat an overdose victim in the Tenderloin district of San Francisco, California, U.S. March 24, 2020. Picture taken March 24, 2020. REUTERS/Shannon Stapleton TPX IMAGES OF THE DAY

A firefighter in a full protective gear is pictured at an improvised car-wash site to disinfect an ambulance, after the transportation of a patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighter in a full protective gear is pictured at an improvised car-wash site to disinfect an ambulance, after the transportation of a patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighter in a full protective gear is pictured at an improvised car-wash site to disinfect an ambulance, after the transportation of a patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighter in full protective gear is pictured at an improvised car-wash site to disinfect an ambulance, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighter in full protective gear disinfects an ambulance at an improvised car-wash site, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

Frefighters in full protective gear disinfect an ambulance at an improvised car-wash site, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A view of the shoes of a firefighter in full protective gear as he disinfects an ambulance at an improvised car-wash site, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

Frefighters in full protective gear disinfect an ambulance at an improvised car-wash site, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighters sits at an improvised car-wash site, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

Firefighters change their shoes at an improvised car-wash site, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighter in full protective gear disinfects an ambulance at an improvised car-wash site, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighter in full protective gear is pictured at an improvised car-wash site to disinfect an ambulance, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighter in full protective gear is pictured inside a vehicle at an improvised car-wash site, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighter in full protective gear disinfects an ambulance at an improvised car-wash site, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighter in full protective gear is pictured at an improvised car-wash site to disinfect an ambulance, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighter in full protective gear is pictured at an improvised car-wash site to disinfect an ambulance, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighter in full protective gear is pictured at an improvised car-wash site to disinfect an ambulance, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighter in full protective gear disinfects an ambulance at an improvised car-wash site, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighter in full protective gear walks at an improvised car-wash site to disinfect an ambulance, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighter in full protective gear disinfects an ambulance at an improvised car-wash site, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

A firefighter in full protective gear disinfects an ambulance at an improvised car-wash site, after the transportation of patient infected with coronavirus disease (COVID-19), in Brussels, Belgium April 1, 2020. REUTERS/Yves Herman

Indigenous Australians Oliver Costello of Firesticks Alliance (2nd L), Jacob Morris (L) and Vanessa Cavanagh (C) speak with Yukon first nation firemen, Jordan Profeit (R) and Chad Thomas who are visiting Australia from Canada, about traditional burning techniques in a forest in Illaroo, New South Wales, Australia, January 22, 2020. Picture taken January 22, 2020. REUTERS/Thomas Peter

Rallying - Dakar Rally - Stage 2 - Al Wajh - Neom, Saudi Arabia - January 6, 2020 Firemen Dakar Team truck driven by Richard De Groot and Van Den Elshout Raph in action during stage two REUTERS/Hamad I Mohammed

French firemen walk along tram rails during a strike by French SNCF railway workers, that is a part of a national strike against French government's pensions reform plans, in Bordeaux, France, December 5, 2019. REUTERS/Regis Duvignau

French firemen walk along tram rails during a strike by French SNCF railway workers, as part of a national strike against French government's pensions reform plans, in Bordeaux, France, December 5, 2019. REUTERS/Regis Duvignau

Firemen hose down a burning building in Baghdad, Iraq November 11, 2019. REUTERS/Thaier al-Sudani

A fireman is seen as firemen hose down a burning building in Baghdad, Iraq November 11, 2019. REUTERS/Thaier al-Sudani

Firemen hose down a burning building in Baghdad, Iraq November 11, 2019. REUTERS/Thaier al-Sudani

Firemen work to extinguish a fire in a building in Baghdad, Iraq November 11, 2019. REUTERS/Thaier al-Sudani

Firemen hose down a burning building in Baghdad, Iraq November 11, 2019. REUTERS/Thaier al-Sudani

Firemen hose down a burning building in Baghdad, Iraq November 11, 2019. REUTERS/Thaier al-Sudani

Firemen hose down a burning building in Baghdad, Iraq November 11, 2019. REUTERS/Thaier al-Sudani

Firemen hose down a burning building in Baghdad, Iraq November 11, 2019. REUTERS/Thaier al-Sudani

Firemen respond to a fire at the Pedro de Valdivia University during a protest against Chile's government in Santiago, Chile November 8, 2019. REUTERS/Henry Romero

Two firemen work as a car remains stranded in a flooded road in central Rotherham, near Sheffield, Britain November 8, 2019. REUTERS/Jon Super

Two firemen work as a car remains stranded in a flooded road in central Rotherham, near Sheffield, Britain November 8, 2019. REUTERS/Jon Super

Firemen deliver provisions to an elder during floods in central Rotherham, near Sheffield, Britain November 8, 2019. REUTERS/Jon Super

Firemen work to put out flames as demonstrators look on during an anti-government protest in Santiago, Chile October 28, 2019. REUTERS/Pablo Sanhueza

Firemen work to put out flames from a building during an anti-government protest in Santiago, Chile October 28, 2019. REUTERS/Pablo Sanhueza TPX IMAGES OF THE DAY

Firemen work to put out flames as a shopping mall burns during an anti-government protest in Santiago, Chile October 28, 2019. REUTERS/Henry Romero

Firemen work to put out flames from a burning shopping mall amid thick smoke during an anti-government protest in Santiago, Chile October 28, 2019. REUTERS/Edgard Garrido

Firemen look at thick smoke emerging from a fire at shopping mall during an anti-government protest in Santiago, Chile October 28, 2019. REUTERS/Edgard Garrido

Firemen work to put out flames as smoke emerge from a shopping mall during an anti-government protest in Santiago, Chile October 28, 2019. REUTERS/Edgard Garrido

Thick smoke emerge from a burning building as firemen work to put out the flames during an anti-government protest in Santiago, Chile October 28, 2019. REUTERS/Henry Romero

Thick smoke emerge from a burning building as firemen work to put out the flames during an anti-government protest in Santiago, Chile October 28, 2019. REUTERS/Henry Romero

Thick smoke emerge from a burning building as firemen work to put out the flames during an anti-government protest in Santiago, Chile October 28, 2019. REUTERS/Henry Romero