A worker wearing a protective mask is seen on duty at a Carrefour supermarket amid the coronavirus disease (COVID-19) outbreak in Brussels, Belgium May 26, 2020. REUTERS/Yves Herman

A worker wearing a protective mask is seen on duty at a Carrefour supermarket amid the coronavirus disease (COVID-19) outbreak in Brussels, Belgium May 26, 2020. REUTERS/Yves Herman

A worker wearing a protective mask is seen on duty at a Carrefour supermarket amid the coronavirus disease (COVID-19) outbreak in Brussels, Belgium May 26, 2020. REUTERS/Yves Herman

A worker wearing a protective mask is seen on duty at a Carrefour supermarket amid the coronavirus disease (COVID-19) outbreak in Brussels, Belgium May 26, 2020. REUTERS/Yves Herman

A worker wearing a protective mask is seen on duty at a Carrefour supermarket amid the coronavirus disease (COVID-19) outbreak in Brussels, Belgium May 26, 2020. REUTERS/Yves Herman

A worker wearing a protective mask is seen on duty at a Carrefour supermarket amid the coronavirus disease (COVID-19) outbreak in Brussels, Belgium May 26, 2020. REUTERS/Yves Herman

Coffee packets are seen on the shelves of a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

L'or and Douwe Egberts coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

Coffee packets are seen on shelves of a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

Douwe Egberts and Senseo coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

Douwe Egberts and Senseo coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

L'or coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

Lavazza coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

Douwe Egberts coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

Coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

Douwe Egberts coffee packets are seen at a Carrefour supermarket in Brussels, Belgium, May 22, 2020. REUTERS/Francois Lenoir

Shoppers wearing protective face masks wait in a queue inside a Carrefour hypermarket, amid concerns over the coronavirus disease (COVID-19), in the Cairo suburb of Maadi, Egypt May 15, 2020. REUTERS/Amr Abdallah Dalsh

A man wearing a protective face mask stands in a disinfectant section inside a Carrefour hypermarket, amid concerns over the coronavirus disease (COVID-19), in the Cairo suburb of Maadi, Egypt May 15, 2020. REUTERS/Amr Abdallah Dalsh

A man and his daughters wear protective face masks as they wait inside a Carrefour hypermarket, amid concerns over the coronavirus disease (COVID-19), in the Cairo suburb of Maadi, Egypt May 15, 2020. REUTERS/Amr Abdallah Dalsh

A view shows social distancing markers put on the floor near ATM machines inside a Carrefour hypermarket as a preventive measure against the spread of the coronavirus disease (COVID-19), in the Cairo suburb of Maadi, Egypt May 15, 2020. REUTERS/Amr Abdallah Dalsh

A priest wearing a protective face mask looks on inside a Carrefour hypermarket, amid concerns over the coronavirus disease (COVID-19), in the Cairo suburb of Maadi, Egypt May 15, 2020. REUTERS/Amr Abdallah Dalsh

An employee wearing a protective face mask arranges packets of rice and wheat inside a Carrefour hypermarket, amid concerns over the coronavirus disease (COVID-19), in the Cairo suburb of Maadi, Egypt May 15, 2020. REUTERS/Amr Abdallah Dalsh

People wearing protective face masks push shopping trollies inside a Carrefour hypermarket, amid concerns over the coronavirus disease (COVID-19), in the Cairo suburb of Maadi, Egypt May 15, 2020. REUTERS/Amr Abdallah Dalsh

Protective face masks are seen on sale at a Carrefour market in Cannes during the outbreak of the coronavirus disease (COVID-19) in France, May 4, 2020. REUTERS/Eric Gaillard

A customer buys protective face masks as he shops at a Carrefour market in Cannes during the outbreak of the coronavirus disease (COVID-19) in France, May 4, 2020. REUTERS/Eric Gaillard

A cashier holds a protective face mask on sale as she serves a customer at a Carrefour market in Cannes during the outbreak of the coronavirus disease (COVID-19) in France, May 4, 2020. REUTERS/Eric Gaillard

Protective face masks are seen in a shopping bag of a customer at a Carrefour market in Cannes during the outbreak of the coronavirus disease (COVID-19) in France, May 4, 2020. REUTERS/Eric Gaillard

A cashier wearing a protective face mask holds a protective face mask on sale as she serves a customer at a Carrefour market in Cannes during the outbreak of the coronavirus disease (COVID-19) in France, May 4, 2020. REUTERS/Eric Gaillard

Protective face masks are seen on sale at a Carrefour market in Cannes during the outbreak of the coronavirus disease (COVID-19) in France, May 4, 2020. REUTERS/Eric Gaillard

A customer pushes a shopping trolley past a Carrefour hypermaket in a shopping centre in Charenton-le-Pont near Paris during the outbreak of the coronavirus disease (COVID-19) in France, April 29, 2020. REUTERS/Charles Platiau

A customer pushes a shopping trolley past a Carrefour hypermaket in a shopping centre in Charenton-le-Pont near Paris during the outbreak of the coronavirus disease (COVID-19) in France, April 29, 2020. REUTERS/Charles Platiau

A worker pushes shopping trolleys to a Carrefour hypermarket in a deserted shopping centre in Charenton-le-Pont near Paris during the outbreak of the coronavirus disease (COVID-19) in France, April 29, 2020. REUTERS/Charles Platiau

A man walks past a closed Carrefour City store with a sign open 24h/24h days/7-days in Paris during a lockdown imposed to slow the spread of the coronavirus disease (COVID-19) in France, April 8, 2020. REUTERS/Gonzalo Fuentes

Cannes Mayor David Lisnard, wearing a protective face mask, talks to the media as an employee checks the temperature of visitors at the entrance of a Carrefour market in Cannes as the spread of the coronavirus disease (COVID-19) continues in France, April 8, 2020. REUTERS/Eric Gaillard

An employee, wearing a protective face mask, checks the temperature of a customer before she enters inside a Carrefour market in Cannes as the spread of the coronavirus disease (COVID-19) continues in France, April 8, 2020. REUTERS/Eric Gaillard

An employee, wearing a protective face mask, checks the temperature of a customer before she enters inside a Carrefour market in Cannes as the spread of the coronavirus disease (COVID-19) continues in France, April 8, 2020. REUTERS/Eric Gaillard

An employee, wearing a protective face mask, checks the temperature of a customer before she enters inside a Carrefour market in Cannes as the spread of the coronavirus disease (COVID-19) continues in France, April 8, 2020. REUTERS/Eric Gaillard

An employee, wearing a protective face mask, checks the temperature of a customer before she enters inside a Carrefour market in Cannes as the spread of the coronavirus disease (COVID-19) continues in France, April 8, 2020. REUTERS/Eric Gaillard

An Uber Eats food delivery courier's backpack is seen in Paris during a lockdown imposed to slow the spread of the coronavirus disease (COVID-19) in France, France, April, 1, 2020. French supermarket retailer Carrefour and Uber Eats would launch a new delivery service aimed at helping Parisians buy essential goods and food during the nationwide lockdown triggered by the coronavirus crisis. REUTERS/Gonzalo Fuentes

An Uber Eats food delivery courier's backpack is seen in Paris during a lockdown imposed to slow the spread of the coronavirus disease (COVID-19) in France, France, April, 1, 2020. French supermarket retailer Carrefour and Uber Eats would launch a new delivery service aimed at helping Parisians buy essential goods and food during the nationwide lockdown triggered by the coronavirus crisis. REUTERS/Gonzalo Fuentes

A deliveryman for Uber Eats rides a bike in Paris during a lockdown imposed to slow the spread of the coronavirus disease (COVID-19) in France, France, April, 1, 2020. French supermarket retailer Carrefour and Uber Eats would launch a new delivery service aimed at helping Parisians buy essential goods and food during the nationwide lockdown triggered by the coronavirus crisis. REUTERS/Gonzalo Fuentes

A deliveryman for Uber Eats rides a bike in Paris during a lockdown imposed to slow the spread of the coronavirus disease (COVID-19) in France, France, April, 1, 2020. French supermarket retailer Carrefour and Uber Eats would launch a new delivery service aimed at helping Parisians buy essential goods and food during the nationwide lockdown triggered by the coronavirus crisis. REUTERS/Gonzalo Fuentes

A deliveryman for Uber Eats drives in Paris during a lockdown imposed to slow the spread of the coronavirus disease (COVID-19) in France, France, April, 1, 2020. French supermarket retailer Carrefour and Uber Eats would launch a new delivery service aimed at helping Parisians buy essential goods and food during the nationwide lockdown triggered by the coronavirus crisis. REUTERS/Gonzalo Fuentes

A view shows empty shelves at a Carrefour supermarket as people began stockpiling food in Monaco as France grapples with an outbreak of coronavirus disease (COVID-19), March 13, 2020. REUTERS/Eric Gaillard

An Uber Eats food delivery courier wearing a protective face mask rides a bicycle as the spread of coronavirus disease (COVID-19) continues in Amsterdam, Netherlands March 25, 2020. REUTERS/Eva Plevier

A view shows empty shelves at a Carrefour supermarket as people began stockpiling food in Gennevilliers, near Paris, as France grapples with an outbreak of coronavirus disease (COVID-19), March 13, 2020. REUTERS/Benoit Tessier

Red strips read "Please keep a distance of at least one meter" on the floor of a food stand at a Carrefour supermarket, during the spread of the coronavirus disease (COVID-19) in Dakar, Senegal March 23, 2020. REUTERS/Zohra Bensemra

Customers wearing face masks are seen next to empty shelves of toilet and kitchen paper section at a Carrefour supermarket, following the novel coronavirus disease (COVID-19) outbreak, in Taipei, Taiwan March 21, 2020. REUTERS/Ben Blanchard

A customer wearing a face mask shops next to partially empty shelves of instant noodles section at a Carrefour supermarket, following the novel coronavirus disease (COVID-19) outbreak, in Taipei, Taiwan March 21, 2020. REUTERS/Ben Blanchard

A customer wearing a face mask sits next to empty shelves of toilet and kitchen paper section at a Carrefour supermarket, following the novel coronavirus disease (COVID-19) outbreak, in Taipei, Taiwan March 21, 2020. REUTERS/Ben Blanchard

A woman wears a protective face mask inside a Carrefour hypermarket while Egypt ramps up its efforts to slow the spread the coronavirus disease (COVID-19) in Cairo, Egypt March 19, 2020. REUTERS/Amr Abdallah Dalsh

An employee wearing a protective face mask waits for customers at a vegetable and fruits stall inside a Carrefour hypermarket while Egypt ramps up its efforts to slow the spread the coronavirus disease (COVID-19) in Cairo, Egypt March 19, 2020. REUTERS/Amr Abdallah Dalsh

A woman pushs a shopping cart inside a Carrefour hypermarket while Egypt ramps up its efforts to slow the spread the coronavirus disease (COVID-19) in Cairo, Egypt March 19, 2020. REUTERS/Amr Abdallah Dalsh

A man wearing a protective face mask walks outside a Carrefour hypermarket while Egypt ramps up its efforts to slow the spread the coronavirus disease (COVID-19) in Cairo, Egypt March 19, 2020. REUTERS/Amr Abdallah Dalsh

A man wearing a protective face mask walks outside a Carrefour hypermarket while Egypt ramps up its efforts to slow the spread the coronavirus disease (COVID-19) in Cairo, Egypt March 19, 2020. REUTERS/Amr Abdallah Dalsh

An employee wearing a protective face mask waits for customers at a vegetable and fruits stall inside a Carrefour hypermarket while Egypt ramps up its efforts to slow the spread the coronavirus disease (COVID-19) in Cairo, Egypt March 19, 2020. REUTERS/Amr Abdallah Dalsh

A man carries disinfectant inside a Carrefour hypermarket while Egypt ramps up its efforts to slow the spread the coronavirus disease (COVID-19) in Cairo, Egypt March 19, 2020. REUTERS/Amr Abdallah Dalsh

A man carries disinfectant inside a Carrefour hypermarket while Egypt ramps up its efforts to slow the spread the coronavirus disease (COVID-19) in Cairo, Egypt March 19, 2020. REUTERS/Amr Abdallah Dalsh

Boxes of pasta are seen in a shopping basket at a Carrefour supermarket as people began stockpiling food in Gennevilliers, near Paris, as France grapples with an outbreak of coronavirus disease (COVID-19), March 13, 2020. REUTERS/Benoit Tessier

A view shows empty shelves at a Carrefour supermarket as people began stockpiling food in Gennevilliers, near Paris, as France grapples with an outbreak of coronavirus disease (COVID-19), March 13, 2020. REUTERS/Benoit Tessier