Pope Francis arrives to board a plane for his visit to Iraq at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, March 5, 2021. REUTERS/Remo Casilli

Pope Francis is welcomed by crew members as he boards a plane for his visit to Iraq at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, March 5, 2021. REUTERS/Remo Casilli

Pope Francis boards a plane for his visit to Iraq, at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, March 5, 2021. REUTERS/Remo Casilli

Pope Francis waves as he boards the plane for his visit to Iraq, at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, March 5, 2021. REUTERS/Remo Casilli

Pope Francis boards a plane for his visit to Iraq, at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, March 5, 2021. REUTERS/Remo Casilli

Pope Francis waves as he boards the plane for his visit to Iraq, at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, March 5, 2021. REUTERS/Remo Casilli

Pope Francis waves as he boards the plane for his visit to Iraq, at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, March 5, 2021. REUTERS/Remo Casilli

Pope Francis waves as he boards the plane for his visit to Iraq, at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, March 5, 2021. REUTERS/Remo Casilli

Pope Francis arrives to board a plane for his visit to Iraq at Leonardo da Vinci-Fiumicino Airport in Rome, Italy, March 5, 2021. REUTERS/Remo Casilli

Buses carrying delegates travel past the Great Hall of the People after the opening session of the National People's Congress (NPC), on a polluted day in Beijing, China March 5, 2021. REUTERS/Carlos Garcia Rawlins

A woman, wearing a protective face mask, walks past a clothing store amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 4, 2021. REUTERS/Eric Gaillard

A manequin is seen next to a tattoo shop in a deserted street in the old town of Nice amid the coronavirus disease (COVID-19) outbreak in France, March 4, 2021. REUTERS/Eric Gaillard

A vegetable seller, wearing a protective face mask, works on a local market amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 4, 2021. REUTERS/Eric Gaillard

A man, wearing a protective face mask, shops at a local market amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 4, 2021. REUTERS/Eric Gaillard

People, wearing a protective face masks, shop at a local market amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 4, 2021. REUTERS/Eric Gaillard

A man walks past a closed Thomas Cook travel agency in the city centre ahead of today's spring budget announcement amid the coronavirus disease (COVID-19) crisis, in Middlesbrough, Britain, March 3, 2021. REUTERS/Lee Smith

A drone picture shows hotel Przystan, closed due to the measures to halt the spread of the coronavirus disease (COVID-19) in Olsztyn, Poland, March 2, 2021. Picture taken March 2, 2021. REUTERS/Kuba Stezycki

People, wearing protective face masks, walk at the Trocadero square near the Eiffel tower in Paris amid the coronavirus disease (COVID-19) outbreak in France, March 2, 2021. REUTERS/Gonzalo Fuentes

People, wearing protective face masks, walk on Parisian covered passages amid the coronavirus disease (COVID-19) outbreak in France, March 2, 2021. REUTERS/Gonzalo Fuentes

People take pictures at the Trocadero square near the Eiffel tower in Paris amid the coronavirus disease (COVID-19) outbreak in France, March 2, 2021. REUTERS/Gonzalo Fuentes

A man, wearing a protective face mask, walks on Parisian covered passages amid the coronavirus disease (COVID-19) outbreak in France, March 2, 2021. REUTERS/Gonzalo Fuentes

A woman, wearing a protective face mask, walks on Parisian covered passages amid the coronavirus disease (COVID-19) outbreak in France, March 2, 2021. REUTERS/Gonzalo Fuentes

A woman, wearing a protective face mask, pushes a baby carriage as she walks on Parisian covered passages amid the coronavirus disease (COVID-19) outbreak in France, March 2, 2021. REUTERS/Gonzalo Fuentes

People, wearing protective face masks, walk on Parisian covered passages amid the coronavirus disease (COVID-19) outbreak in France, March 2, 2021. REUTERS/Gonzalo Fuentes

People, wearing protective face masks, walk on Parisian covered passages amid the coronavirus disease (COVID-19) outbreak in France, March 2, 2021. REUTERS/Gonzalo Fuentes

A woman walks past a closed-down souvenir store in central Madrid, Spain, March 2, 2021. REUTERS/Susana Vera

Tourist industry representatives from Mazury (Masuria) lake district protest against COVID-19 measures in front of the Prime Minister Chancellery building in Warsaw, Poland, March 1, 2021. Sign reads, "Closed Masuria, the peak of COVID-19 nonsense". REUTERS/Kacper Pempel

Representatives of tourist industry from Mazury (Masuria) lake district protest against COVID-19 measures in front of the Prime Minister Chancellery building in Warsaw, Poland, March 1, 2021. Banner reads, "The calm on lakes has never been so deadly". REUTERS/Kacper Pempel

A traveller shows his electronic bracelet and its box as Israel introduces them to enforce quarantine amid coronavirus disease (COVID-19) for Israelis who return from abroad in the arrivals terminal of Ben Gurion international airport in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

Travellers show their electronic bracelets as Israel introduces them to enforce quarantine amid coronavirus disease (COVID-19) for Israelis who return from abroad in the arrival terminal of Ben Gurion international airport in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

Travellers show their electronic bracelets as Israel introduces them to enforce quarantine amid coronavirus disease (COVID-19) for Israelis who return from abroad in the arrivals terminal of Ben Gurion international airport in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

Travellers show their electronic bracelets as Israel introduces them to enforce quarantine amid coronavirus disease (COVID-19) for Israelis who return from abroad in the arrival terminal of Ben Gurion international airport in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

Members of the media shoot pictures and video of travellers showing their electronic bracelets as Israel introduces it to enforce quarantine amid coronavirus disease (COVID-19) for Israelis who return from abroad in the arrival terminal of Ben Gurion international airport in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

A traveller gestures as he arrives at the desk in the arrivals terminal of Ben Gurion international airport amid coronavirus disease (COVID-19) in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

Workers that give coronavirus disease (COVID-19) tests chat in the arrivals terminal of Ben Gurion international airport in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

Travellers and air crew get coronavirus disease (COVID-19) tests in the arrivals terminal of Ben Gurion international airport in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

Workers that give coronavirus disease (COVID-19) tests chat in the arrivals terminal of Ben Gurion international airport in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

A traveller wears an electronic bracelet as Israel introduces it to enforce quarantine amid coronavirus disease (COVID-19) for Israelis who return from abroad in the arrival terminal of Ben Gurion international airport in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

A man wears an electronic bracelet as Israel introduces it to enforce quarantine amid coronavirus disease (COVID-19) for Israelis who return from abroad in the arrival terminal of Ben Gurion international airport in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

A man wears an electronic bracelet as Israel introduces it to enforce quarantine amid coronavirus disease (COVID-19) for Israelis who return from abroad in the arrival terminal of Ben Gurion international airport in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

A traveller gets a coronavirus disease (COVID-19) test in the arrivals terminal of Ben Gurion international airport in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

An air crew member gets a coronavirus disease (COVID-19) test in the arrivals terminal of Ben Gurion international airport in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

Travellers and air crew get coronavirus disease (COVID-19) tests in the arrivals terminal of Ben Gurion international airport in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

A man gets an electronic bracelet as Israel introduces it to enforce quarantine for Israelis who return from abroad in the arrivals terminal of Ben Gurion international airport in Lod, near Tel Aviv, Israel March 1, 2021 REUTERS/ Amir Cohen

Tourists push their bicycles as people run towards a bath house, also known as "banya", after taking a dip in the icy waters of Lake Baikal in the village of Khuzhir in Irkutsk Region, Russia February 25, 2021. Picture taken February 25, 2021. REUTERS/Maxim Shemetov

A tourist takes pictures of an abandoned fishing cutter on the shore of Lake Baikal in the settlement of Khuzhir in Irkutsk Region, Russia February 25, 2021. Picture taken February 25, 2021. REUTERS/Maxim Shemetov

Tourists push their bicycles on the ice-covered Lake Baikal outside the village of Sakhyurta in Irkutsk Region, Russia February 22, 2021. Picture taken February 22, 2021. REUTERS/Maxim Shemetov

A view shows a Turkish Airlines Boeing 737 parked on the tarmac of Nice Cote d'Azur Airport Terminal 2 amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 1, 2021. REUTERS/Eric Gaillard

A view shows empty boarding gates at Nice Cote d'Azur Airport Terminal 2 amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 1, 2021. REUTERS/Eric Gaillard

A French border police officer controls passengers as they arrive at Nice Cote d'Azur Airport amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 1, 2021. REUTERS/Eric Gaillard

A French border police officer controls passengers as they arrive at Nice Cote d'Azur Airport amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 1, 2021. REUTERS/Eric Gaillard

A view shows easyJet and Air France planes parked on the tarmac of Nice Cote d'Azur Airport Terminal 2 amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 1, 2021. REUTERS/Eric Gaillard

A view shows easyJet and Air France planes parked on the tarmac of Nice Cote d'Azur Airport Terminal 2 amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 1, 2021. REUTERS/Eric Gaillard

A view shows easyJet and Air France planes parked on the tarmac of Nice Cote d'Azur Airport Terminal 2 amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 1, 2021. REUTERS/Eric Gaillard

French border police officers control passengers as they arrive at Nice Cote d'Azur Airport amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 1, 2021. REUTERS/Eric Gaillard

A medical worker prepares to test passengers as they arrive at Nice Cote d'Azur Airport amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 1, 2021. REUTERS/Eric Gaillard

A medical worker prepares to test passengers as they arrive at Nice Cote d'Azur Airport amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 1, 2021. REUTERS/Eric Gaillard

A French border police officer controls passengers as they arrive at Nice Cote d'Azur Airport amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 1, 2021. REUTERS/Eric Gaillard

French border police officers control passengers as they arrive at Nice Cote d'Azur Airport amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 1, 2021. REUTERS/Eric Gaillard

A medical worker administers a nasal swab to a passenger arriving at Nice Cote d'Azur Airport amid the coronavirus disease (COVID-19) outbreak in Nice, France, March 1, 2021. REUTERS/Eric Gaillard