Commuters, wearing protective face masks, walk on a platform at the Saint-Lazare train station in Paris, on the first day mask usage is mandatory in public transport, after France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Charles Platiau

Jockeys are seen wearing protective face masks at the start of Prix de Fleurus race as horse racing resumes behind closed doors at Longchamp in Paris as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Gonzalo Fuentes

People stand on signs to respect social distancing on a platform for the tramway in Nice as France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19), France, May 11, 2020. REUTERS/Eric Gaillard TPX IMAGES OF THE DAY

People wait observing social distancing oustide a Zara shop in Paris as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Benoit Tessier

A man wearing a protective face mask walks at the financial and business district of La Defense near Paris as France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19), May 11, 2020. REUTERS/Gonzalo Fuentes

A man wearing a protective face mask rides the tramway in Nice, on the first day mask usage is mandatory in public transport, as France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19), France, May 11, 2020. REUTERS/Eric Gaillard

People wearing protective face masks walk at the financial and business district of La Defense near Paris as France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19), May 11, 2020. REUTERS/Gonzalo Fuentes

French hairdresser Marc Mauny tends to his first customer during the re-opening of Marc Creations hair salon at midnight in Mayenne, as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19), May 11, 2020.?REUTERS/Stephane Mahe

People, wearing protective face masks, wait observing social distancing oustide a Zara shop in Paris as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Benoit Tessier

A hairdresser wearing a protective face mask colors the hair of customer in Nice as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Eric Gaillard

People stand outside the reopened Dior boutique place Vendome in Paris after France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Charles Platiau

Customers queue up at the reopened main shop of French luxury group Hermes in Paris after France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Charles Platiau

A hairdresser, wearing a protective face mask and gloves, cuts the hair of a customer at a Barber Shop in Paris as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Benoit Tessier

A barber, wearing a protective face mask and a protective shield, cuts a customer's beard at a Barber Shop in Paris as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Benoit Tessier

A barber, wearing a protective face mask and a protective shield, cuts a customer's beard at a Barber Shop in Paris as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Benoit Tessier

A barber, wearing a protective face mask and a protective shield, cuts a customer's beard at a Barber Shop in Paris as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Benoit Tessier

People wait observing social distancing oustide a Zara shop in Paris as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Benoit Tessier

People wait observing social distancing oustide a Zara shop in Paris as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Benoit Tessier

JCDecaux employees install hydroalcoholic solution dispensers at a bus station in a street in Paris as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Benoit Tessier

JCDecaux employees install hydroalcoholic solution dispensers at a bus station in a street in Paris as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Benoit Tessier

Jockeys are seen wearing protective face masks at the start of Prix Des Nenuphars race as horse racing resumes behind closed doors at Longchamp in Paris as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Gonzalo Fuentes

Paris Public Transport (RATP) employees prepare to give alcoholic gel to commuters at a subway station, as the country began easing lockdown restrictions amid the coronavirus disease (COVID-19) outbreak, in Paris, France May 11, 2020. Rafael Yaghobzadeh/Pool via REUTERS

President of Paris city's RATP transport services Catherine Guillouard and Transport Minister Jean-Baptiste Djebbari sanitize their hands before entering a subway station, as the country began easing lockdown restrictions amid the coronavirus disease (COVID-19) outbreak, in Paris, France May 11, 2020. Rafael Yaghobzadeh/Pool via REUTERS

Passengers wearing protective face masks check schedules at the Gare Saint Lazare railway station in Paris, on the first day mask usage is mandatory in public transport, after France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Charles Platiau

Passengers wearing protective face masks check schedules at the Gare Saint Lazare railway station in Paris, on the first day mask usage is mandatory in public transport, after France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Charles Platiau

Passengers wearing protective face masks wait for the departure of their train at the Gare Saint Lazare railway station in Paris, on the first day mask usage is mandatory in public transport, after France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Charles Platiau

Passengers wearing protective face masks check schedules as they stand on circles to respect social distancing at the Gare Saint Lazare railway station in Paris, on the first day mask usage is mandatory in public transport, after France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19) France, May 11, 2020. REUTERS/Charles Platiau

Police forces check passengers arriving at the Saint-Lazare train station in Paris on the first day mask usage is mandatory in public transport, after France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Charles Platiau

People collect free protective face masks from Region Ile de France representatives as they arrive at Saint-Lazare train station in Paris, on the first day mask usage is mandatory in public transport, after France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Charles Platiau

Commuters, wearing protective face masks, walk on a platform at the Saint-Lazare train station in Paris, on the first day mask usage is mandatory in public transport, after France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Charles Platiau

Commuters, wearing protective face masks, walk on a platform at the Saint-Lazare train station in Paris, on the first day mask usage is mandatory in public transport, after France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Charles Platiau

Commuters, wearing protective face masks, leave the Saint-Lazare train station in Paris, on the first day mask usage is mandatory in public transport, after France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Charles Platiau

An employee of the tramway wearing a protective face mask stands on the platform in Nice, on the first day mask usage is mandatory in public transport, as France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19), in Nice, France, May 11, 2020. REUTERS/Eric Gaillard

Christian Estrosi, Mayor of Nice, wearing a protective face mask, stands on the platform of the tramway in Nice, on the first day mask usage is mandatory in public transport, after France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19), France, May 11, 2020. REUTERS/Eric Gaillard

People wearing protective face masks ride the metro in a rush hour in Paris as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Benoit Tessier

People wearing protective face masks walk on a platform at a metro station of Paris transport network (RATP) in Paris as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Benoit Tessier

People wearing protective face masks walk at the financial and business district of La Defense near Paris as France begun a gradual end to a nationwide lockdown due to the coronavirus disease (COVID-19), May 11, 2020. REUTERS/Gonzalo Fuentes

People wearing protective face masks ride the metro in a rush hour in Paris as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19) in France, May 11, 2020. REUTERS/Benoit Tessier

French hairdresser Marc Mauny tends to his first customer during the re-opening of Marc Creations hair salon at midnight in Mayenne, as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19), May 11, 2020.?REUTERS/Stephane Mahe

French hairdresser Marc Mauny tends to his first customer during the re-opening of Marc Creations hair salon at midnight in Mayenne, as France softens its strict lockdown rules during the outbreak of the coronavirus disease (COVID-19), May 11, 2020. REUTERS/Stephane Mahe