Albertsons Pharmacy Manager Uri Bassan fills a syringe with Moderna coronavirus disease (COVID-19) vaccine at a rural vaccination site in Columbus, New Mexico, U.S., April 16, 2021. Bassan works with the State of New Mexico to reach high risk and isolated populations for vaccinations. REUTERS/Paul Ratje

Albertsons Pharmacy Manager Uri Bassan fills a syringe with Moderna coronavirus disease (COVID-19) vaccine at a rural vaccination site in Columbus, New Mexico, U.S., April 16, 2021. Bassan works with the State of New Mexico to reach high risk and isolated populations for vaccinations. REUTERS/Paul Ratje

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena (not seen) for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena (not seen) for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena (not seen) for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron wait for the arrival of Ukraine's President Volodymyr Zelenskiy and his wife Olena (not seen) for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron wait for the arrival of Ukraine's President Volodymyr Zelenskiy and his wife Olena (not seen) for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron wait for the arrival of Ukraine's President Volodymyr Zelenskiy and his wife Olena (not seen) for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron wait for the arrival of Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron elbow bumps with Ukraine's President Volodymyr Zelenskiy as he arrives for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron welcomes Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron welcomes Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

A TV crew works outside Windsor Castle, after Britain's Prince Philip, husband of Queen Elizabeth, died at the age of 99, in Windsor, near London, Britain, April 16, 2021. REUTERS/Molly Darlington

Koji Suzuki, 66, a surfer and a surf shop owner, works at his shop in Minamisoma, Fukushima Prefecture, Japan, April 16, 2021. REUTERS/Akira Tomoshige

Students at Parkland High School work in the library socially distanced in Allentown, Pennsylvania, U.S., April 13, 2021. Picture taken April 13, 2021. REUTERS/Hannah Beier

Medical staff member works inside the coronavirus disease (COVID-19) intensive care ward at the Stefan Zeromski hospital in Krakow, Poland, April 14, 2021. Picture taken April 14, 2021. REUTERS/Kacper Pempel

Medical staff members work inside the coronavirus disease (COVID-19) intensive care ward at the Stefan Zeromski hospital in Krakow, Poland, April 14, 2021. Picture taken April 14, 2021. REUTERS/Kacper Pempel

Healthcare workers attend a demonstration for better working conditions, as the outbreak of the coronavirus disease (COVID-19) continues, in Ankara, Turkey April 15, 2021. REUTERS/Cagla Gurdogan

A healthcare worker holds a placard that reads: "Stop the deaths. We will not give up our right to life" during a demonstration for better working conditions, as the outbreak of the coronavirus disease (COVID-19) continues, in Ankara, Turkey April 15, 2021. REUTERS/Cagla Gurdogan

A healthcare worker holds a placard that reads: "Stop the deaths. We will not give up our right to life" during a demonstration for better working conditions, as the outbreak of the coronavirus disease (COVID-19) continues, in Ankara, Turkey April 15, 2021. REUTERS/Cagla Gurdogan

Scaffolding under a vault is pictured at the reconstruction site during French President Emmanuel Macron's visit at the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

A workman stands on scaffolding under a vault at the reconstruction site during French President Emmanuel Macron's visit at the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

Wooden beams supporting a vault are pictured at the reconstruction site during French President Emmanuel Macron's visit at the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

Construction plans are laid out under a vault at the reconstruction site during French President Emmanuel Macron's visit at the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

Workmen plaster stonework as they rappel down a vault at the reconstruction site during French President Emmanuel Macron's visit at the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

A workman stands on scaffolding under the vault at the reconstruction site during French President Emmanuel Macron's visit at the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

Workmen plaster stonework as they rappel down a vault at the reconstruction site during French President Emmanuel Macron's visit at the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS TPX IMAGES OF THE DAY

French President Emmanuel Macron (C), Mayor of Paris Anne Hidalgo (R) and the French Army General Jean-Louis Georgelin tour the scaffolding under the vault at the reconstruction site during a visit of the French President at the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

A funeral service worker holds a sign that reads "We want to live! We want vaccines" during a protest for better work conditions and health and safety measures, amid the coronavirus disease (COVID-19) pandemic, in Sao Paulo, Brazil, April 15, 2021. REUTERS/Carla Carniel

A funeral service worker holds a sign that reads "We want to live! We want vaccines" during a protest for better work conditions and health and safety measures, amid the coronavirus disease (COVID-19) pandemic, in Sao Paulo, Brazil, April 15, 2021. REUTERS/Carla Carniel

Funeral service workers hold signs that read "We want to live! We want vaccines" during a protest for better work conditions and health and safety measures, amid the coronavirus disease (COVID-19) pandemic, in Sao Paulo, Brazil April 15, 2021. REUTERS/Carla Carniel

A bird statue is seen at the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, with buildings and rooftops in the background in Paris, France, April 15, 2021. REUTERS/Benoit Tessier/Pool

A healthcare worker holds a placard that reads: "AK Party is harmful to health!" during a demonstration for better working conditions, as the outbreak of the coronavirus disease (COVID-19) continues, in Istanbul, Turkey April 15, 2021. REUTERS/Dilara Senkaya

A healthcare worker holds a placard that reads: "AK Party is harmful to health!" during a demonstration for better working conditions, as the outbreak of the coronavirus disease (COVID-19) continues, in Istanbul, Turkey April 15, 2021. REUTERS/Dilara Senkaya

A protester scuffles with riot police during a demonstration organised by healthcare workers for better working conditions, as the outbreak of the coronavirus disease (COVID-19) continues, in Istanbul, Turkey April 15, 2021. REUTERS/Dilara Senkaya

French President Emmanuel Macron, French Army General Jean-Louis Georgelin, in charge of Notre-Dame Cathedral reconstruction, chief architect of historical sites Philippe Villeneuve and Archbishop of Paris Michel Aupetit visit the reconstruction site of the roof of the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. REUTERS/Benoit Tessier/Pool

French President Emmanuel Macron, French Army General Jean-Louis Georgelin, in charge of Notre-Dame Cathedral reconstruction, and chief architect of historical sites Philippe Villeneuve visit the reconstruction site of the roof of the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. REUTERS/Benoit Tessier/Pool

French President Emmanuel Macron speaks with workers' team under the wooden support vaults during a visit at the reconstruction site of the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

French President Emmanuel Macron speaks with a worker and the French Army General Jean-Louis Georgelin in front of a stained glass window under the damaged vaults during a visit at the reconstruction site of the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

French President Emmanuel Macron speaks with workers' team under the wooden support vaults during a visit at the reconstruction site of the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

French President Emmanuel Macron looks at the damaged vaults from a scaffolding during a visit at the reconstruction site of the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

French President Emmanuel Macron speaks with the French Army General Jean-Louis Georgelin and looks at the damaged vaults from a scaffolding during a visit at the reconstruction site of the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

French President Emmanuel Macron stands in front of a stained glass window under the damaged vaults during a visit at the reconstruction site of the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

French President Emmanuel Macron speaks with a worker and the French Army General Jean-Louis Georgelin in front of a stained glass window under the damaged vaults during a visit at the reconstruction site of the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

French President Emmanuel Macron speaks with workers' team under the wooden support vaults during a visit at the reconstruction site of the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

French President Emmanuel Macron stands in front of a stained glass window under the damaged vaults during a visit at the reconstruction site of the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

French President Emmanuel Macron, French Army General Jean-Louis Georgelin and Paris Mayor Anne Hidalgo are seen during a visit at the reconstruction site of the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

French President Emmanuel Macron and Paris Mayor Anne Hidalgo look on during a visit at the reconstruction site of the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

French President Emmanuel Macron looks on during a visit at the reconstruction site of the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS

French President Emmanuel Macron speaks with French Army General Jean-Louis Georgelin during a visit at the reconstruction site of the Notre-Dame de Paris Cathedral, which was damaged in a devastating fire two years ago, as restoration works continue, in Paris, France, April 15, 2021. Ian Langsdon/Pool via REUTERS