People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann TPX IMAGES OF THE DAY

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

People attend the massive experimental concert "Ambition Live Again", organised by Assistance Publique-Hopitaux de Paris (AP-HP) and music industry union Prodiss to assess health risks associated with resuming large-scale public gatherings since the beginning of the coronavirus disease (COVID-19) pandemic, at Paris Accor Arena in Paris, France, May 29, 2021. REUTERS/Christian Hartmann

A combination picture shows a tower building housing AP, Al Jazeera offices as it collapses after Israeli missile strikes in Gaza city, May 15, 2021. REUTERS/Mohammed Salem TPX IMAGES OF THE DAY

Smoke rises is seen from a window during an Israeli air strike at a tower AP, Al Jazeera, in Gaza city, in Gaza City May 15, 2021. REUTERS/Suhaib Salem

A tower housing AP, Al Jazeera offices collapses after Israeli missile strikes in Gaza city, May 15, 2021. REUTERS/Mohammed Salem

A tower housing AP, Al Jazeera offices collapses after Israeli missile strikes in Gaza city, May 15, 2021. REUTERS/Mohammed Salem

A Palestinian police man stands guard at the remain of a tower housing AP, Al Jazeera offices collapses after Israeli missile strikes in Gaza city, May 15, 2021. REUTERS/Mohammed Salem

A missile falls near a tower housing AP, Al Jazeera offices during Israeli missile strikes in Gaza city, May 15, 2021. REUTERS/Mohammed Salem

A missile falls near a tower housing AP, Al Jazeera offices during Israeli missile strikes in Gaza city, May 15, 2021. REUTERS/Mohammed Salem

A missile falls as smoke rises near a tower housing AP, Al Jazeera offices (C) during Israeli missile strikes in Gaza city, May 15, 2021. REUTERS/Ashraf Abu Amrah

A tower housing AP, Al Jazeera offices collapses after Israeli missile strikes in Gaza city, May 15, 2021. REUTERS/Mohammed Salem

A tower housing AP, Al Jazeera offices collapses after Israeli missile strikes in Gaza city, May 15, 2021. REUTERS/Mohammed Salem

A tower housing AP, Al Jazeera offices collapses after Israeli missile strikes in Gaza city, May 15, 2021. REUTERS/Mohammed Salem

A tower housing AP, Al Jazeera offices collapses after Israeli missile strikes in Gaza city, May 15, 2021. REUTERS/Mohammed Salem

Gaza tower housing AP, Al Jazeera collapses after missile strike in Gaza city, May 15, 2021. REUTERS/Mohammed Salem

A tower housing AP, Al Jazeera offices collapses after Israeli missile strikes in Gaza city, May 15, 2021. REUTERS/Mohammed Salem

A tower housing AP, Al Jazeera offices collapses after Israeli missile strikes in Gaza city, May 15, 2021. REUTERS/Mohammed Salem TPX IMAGES OF THE DAY

Paulina Porizkova, left, and Aaron Sorkin arrive at the Oscars on Sunday, April 25, 2021, at Union Station in Los Angeles. (AP Photo/Chris Pizzello, Pool) Pool via REUTERS

H.E.R. arrives at the Oscars on Sunday, April 25, 2021, at Union Station in Los Angeles. (AP Photo/Chris Pizzello, Pool) Pool via REUTERS

Chimpanzees watch a giant screen inside their enclosure at Dvur Kralove Zoo, where a screen broadcasting fellow apes from Brno zoo has been installed as part of an enrichment project for chimpanzees amid zoo closures due to the coronavirus disease (COVID-19) pandemic, in Dvur Kralove nad Labem, Czech Republic, March 16, 2021. REUTERS/David W Cerny

Chimpanzees watch a giant screen inside their enclosure at Dvur Kralove Zoo, where a screen broadcasting fellow apes from Brno zoo has been installed as part of an enrichment project for chimpanzees amid zoo closures due to the coronavirus disease (COVID-19) pandemic, in Dvur Kralove nad Labem, Czech Republic, March 16, 2021. REUTERS/David W Cerny

A chimpanzee watches a giant screen inside its enclosure at Dvur Kralove Zoo, where a screen broadcasting fellow apes from Brno zoo has been installed as part of an enrichment project for chimpanzees amid zoo closures due to the coronavirus disease (COVID-19) pandemic, in Dvur Kralove nad Labem, Czech Republic, March 16, 2021. REUTERS/David W Cerny

Chimpanzees watch a giant screen inside their enclosure at Dvur Kralove Zoo, where a screen broadcasting fellow apes from Brno zoo has been installed as part of an enrichment project for chimpanzees amid zoo closures due to the coronavirus disease (COVID-19) pandemic, in Dvur Kralove nad Labem, Czech Republic, March 16, 2021. REUTERS/David W Cerny

A chimpanzee sits in front of a giant screen inside its enclosure at Dvur Kralove Zoo, where a screen broadcasting fellow apes from Brno zoo has been installed as part of an enrichment project for chimpanzees amid zoo closures due to the coronavirus disease (COVID-19) pandemic, in Dvur Kralove nad Labem, Czech Republic, March 16, 2021. REUTERS/David W Cerny

A chimpanzee rests in front of a giant screen inside its enclosure at Dvur Kralove Zoo, where a screen broadcasting fellow apes from Brno zoo has been installed as part of an enrichment project for chimpanzees amid zoo closures due to the coronavirus disease (COVID-19) pandemic, in Dvur Kralove nad Labem, Czech Republic, March 16, 2021. REUTERS/David W Cerny TPX IMAGES OF THE DAY

A chimpanzee jumps in front of a giant screen inside its enclosure at Dvur Kralove Zoo, where a screen broadcasting fellow apes from Brno zoo has been installed as part of an enrichment project for chimpanzees amid zoo closures due to the coronavirus disease (COVID-19) pandemic, in Dvur Kralove nad Labem, Czech Republic, March 16, 2021. REUTERS/David W Cerny

A chimpanzee watches a giant screen inside its enclosure at the Dvur Kralove Zoo, where a screen broadcasting fellow apes from Brno zoo has been installed as part of an enrichment project for chimpanzees amid zoo closures due to the coronavirus disease (COVID-19) pandemic, in Dvur Kralove nad Labem, Czech Republic, March 16, 2021. REUTERS/David W Cerny

Stand-ins for President-elect Joe Biden and Jill Biden walk on the podium during a rehearsal for the 59th Presidential Inauguration at the U.S. Capitol in Washington, Monday, Jan. 18, 2021.(AP Photo/Patrick Semansky, Pool)

People light candles and oil lamps, in commemoration of the victims of an attack on the Army Public School (APS) in 2014, in Karachi, Pakistan December 16, 2020. REUTERS/Akhtar Soomro

People light candles and oil lamps, in commemoration of the victims of an attack on the Army Public School (APS) in 2014, in Karachi, Pakistan December 16, 2020. REUTERS/Akhtar Soomro

People light candles and oil lamps, in commemoration of the victims of an attack on the Army Public School (APS) in 2014, in Karachi, Pakistan December 16, 2020. REUTERS/Akhtar Soomro

Head of Ile-de-France Regional Health Agency (ARS) Aurelien Rousseau, French Education, Youth and Sports Minister Jean-Michel Blanquer and Director General of Assistance Publique-Hopitaux de Paris (AP-HP) Martin Hirsch speak to the press during their visit to the Emile Dubois Lycee where antigen testing for the coronavirus disease (COVID-19) is taking place, in Paris, France November 23, 2020. Ludovic Marin/Pool via REUTERS

Head of Ile-de-France Regional Health Agency (ARS) Aurelien Rousseau, French Education, Youth and Sports Minister Jean-Michel Blanquer and Director General of Assistance Publique-Hopitaux de Paris (AP-HP) Martin Hirsch speak to the press during their visit to the Emile Dubois Lycee where antigen testing for the coronavirus disease (COVID-19) is taking place, in Paris, France November 23, 2020. Ludovic Marin/Pool via REUTERS

French Education, Youth and Sports Minister Jean-Michel Blanquer and Director General of Assistance Publique-Hopitaux de Paris (AP-HP) Martin Hirsch speak with students during their visit to the Emile Dubois Lycee where antigen testing for the coronavirus disease (COVID-19) is taking place, in Paris, France November 23, 2020. Ludovic Marin/Pool via REUTERS

Infectious diseases specialist Gilles Pialoux poses during an interview with Reuters at the AP-HP Tenon hospital that treats people suffering from the coronavirus disease (COVID-19) in Paris, France, November 5, 2020. REUTERS/Christian Hartmann

Infectious diseases specialist Gilles Pialoux poses during an interview with Reuters at the AP-HP Tenon hospital that treats people suffering from the coronavirus disease (COVID-19) in Paris, France, November 5, 2020. REUTERS/Christian Hartmann

Infectious diseases specialist Gilles Pialoux poses during an interview with Reuters at the AP-HP Tenon hospital that treats people suffering from the coronavirus disease (COVID-19) in Paris, France, November 5, 2020. REUTERS/Christian Hartmann

Infectious diseases specialist Gilles Pialoux poses during an interview with Reuters at the AP-HP Tenon hospital that treats people suffering from the coronavirus disease (COVID-19) in Paris, France, November 5, 2020. REUTERS/Christian Hartmann

Health workers are seen at the infectious diseases unit of the AP-HP Tenon hospital that treats people suffering from the coronavirus disease (COVID-19) in Paris, France, November 5, 2020. REUTERS/Christian Hartmann

An health worker takes a break at the AP-HP Tenon hospital that treats people suffering from the coronavirus disease (COVID-19) in Paris, France, November 5, 2020. REUTERS/Christian Hartmann

3D-printed ballot boxes are seen in front of a displayed Twitter logo in this illustration taken November 4, 2020. REUTERS/Dado Ruvic/Illustration