Britain's Prime Minister Boris Johnson, wearing a face mask to prevent the spread of the coronavirus disease (COVID-19), speaks with VP systems integration Robin Page as he visits the QuantuMDx Biotechnology company, in Newcastle Upon Tyne, Britain, February 13, 2021. Ian Forsyth/Pool via REUTERS

Britain's Prime Minister Boris Johnson, wearing a face mask to prevent the spread of the coronavirus disease (COVID-19), speaks with VP systems integration Robin Page as he visits the QuantuMDx Biotechnology company, in Newcastle Upon Tyne, Britain, February 13, 2021. Ian Forsyth/Pool via REUTERS

People walk past Marina Bay Sands integrated resort in Singapore February 3, 2021. REUTERS/Edgar Su

A technician introduces a F. Hoffmann-La Roche Ltd. Cobas 8800 fully integrated laboratory automation system in a laboratory during a media tour at the North Lantau Hospital Hong Kong Infection Control Center, in Hong Kong, China February 2, 2021. REUTERS/Tyrone Siu

A technician demonstrates handling a specimen using a F. Hoffmann-La Roche Ltd. Cobas 6800 fully integrated laboratory automation system in a laboratory during a media tour, at the North Lantau Hospital Hong Kong Infection Control Center, in Hong Kong, China February 2, 2021. REUTERS/Tyrone Siu

A technician introduces a F. Hoffmann-La Roche Ltd. Cobas 8800 fully integrated laboratory automation system in a laboratory during a media tour at the North Lantau Hospital Hong Kong Infection Control Center, in Hong Kong, China February 2, 2021. REUTERS/Tyrone Siu

Staff members in protective suits stand at Hubei Provincial Hospital of Integrated Chinese and Western Medicine where members of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) are visiting, in Wuhan, Hubei province, China January 29, 2021. REUTERS/Thomas Peter TPX IMAGES OF THE DAY

Peter Ben Embarek, a member of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19), leaves Hubei Provincial Hospital of Integrated Chinese and Western Medicine in Wuhan, Hubei province, China January 29, 2021. REUTERS/Thomas Peter

A man attempts to prevent journalists from covering the visit by the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) to Hubei Provincial Hospital of Integrated Chinese and Western Medicine, in Wuhan, Hubei province, China January 29, 2021. REUTERS/Thomas Peter TPX IMAGES OF THE DAY

A staff member in protective suit stands at Hubei Provincial Hospital of Integrated Chinese and Western Medicine where members of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) are visiting, in Wuhan, Hubei province, China January 29, 2021. REUTERS/Thomas Peter

Chinese medical workers are seen as members of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) leave Hubei Provincial Hospital of Integrated Chinese and Western Medicine in Wuhan, Hubei province, China January 29, 2021. REUTERS/Thomas Peter

Chinese medical workers are seen as members of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) leave Hubei Provincial Hospital of Integrated Chinese and Western Medicine in Wuhan, Hubei province, China January 29, 2021. REUTERS/Thomas Peter

Peter Ben Embarek, a member of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19), leaves Hubei Provincial Hospital of Integrated Chinese and Western Medicine in Wuhan, Hubei province, China January 29, 2021. REUTERS/Thomas Peter

Marion Koopmans, a member of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19), leaves Hubei Provincial Hospital of Integrated Chinese and Western Medicine in Wuhan, Hubei province, China January 29, 2021. REUTERS/Thomas Peter

A car carrying members of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) leaves Hubei Provincial Hospital of Integrated Chinese and Western Medicine in Wuhan, Hubei province, China January 29, 2021. REUTERS/Thomas Peter

A car carrying members of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) arrives at Hubei Provincial Hospital of Integrated Chinese and Western Medicine in Wuhan, Hubei province, China January 29, 2021. REUTERS/Thomas Peter

Police officers keep watch outside Hubei Provincial Hospital of Integrated Chinese and Western Medicine, where members of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) are visiting, in Wuhan, Hubei province, China January 29, 2021. REUTERS/Thomas Peter

A car carrying members of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) arrive at Hubei Provincial Hospital of Integrated Chinese and Western Medicine in Wuhan, Hubei province, China January 29, 2021. REUTERS/Thomas Peter

A woman stands outside Hubei Provincial Hospital of Integrated Chinese and Western Medicine, where members of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) are visiting, in Wuhan, Hubei province, China January 29, 2021. REUTERS/Thomas Peter TPX IMAGES OF THE DAY

Members of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) arrive at Hubei Provincial Hospital of Integrated Chinese and Western Medicine in Wuhan, Hubei province, China January 29, 2021. REUTERS/Thomas Peter

A car carrying members of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) arrive at Hubei Provincial Hospital of Integrated Chinese and Western Medicine in Wuhan, Hubei province, China January 29, 2021. REUTERS/Thomas Peter

State Minister for Migration, Refugees and Integration Annette Widmann-Mauz wears a mask as she arrives to attend a news conference, after a meeting with German Chancellor Angela Merkel, at the Chancellery in Berlin, Germany, January 20, 2021. REUTERS/Fabrizio Bensch/Pool

State Minister for Migration, Refugees and Integration Annette Widmann-Mauz attends a news conference, after a meeting with German Chancellor Angela Merkel, at the Chancellery in Berlin, Germany, January 20, 2021. REUTERS/Fabrizio Bensch/Pool

State Minister for Migration, Refugees and Integration Annette Widmann-Mauz speaks during a news conference, after a meeting with German Chancellor Angela Merkel, at the Chancellery in Berlin, Germany, January 20, 2021. REUTERS/Fabrizio Bensch/Pool

German Chancellor Angela Merkel leaves after a meeting with State Minister for Migration, Refugees and Integration Annette Widmann-Mauz at the Chancellery in Berlin, Germany, January 20, 2021. REUTERS/Fabrizio Bensch/Pool

German Chancellor Angela Merkel and State Minister for Migration, Refugees and Integration Annette Widmann-Mauz leave after a meeting at the Chancellery in Berlin, Germany, January 20, 2021. REUTERS/Fabrizio Bensch/Pool

A protester holds a sign saying "We demand election integrity" at a rally in support of U.S. President Donald Trump at the Oregon State Capitol in Salem, Oregon, U.S. January 6, 2021. REUTERS/Terray Sylvester

Passengers wearing face masks and face shields for protection against the coronavirus disease (COVID-19) queue for bus rides going to provinces amid the holiday season, at the Paranaque Integrated Terminal Exchange, in Paranaque City, Metro Manila, Philippines, December 29, 2020. REUTERS/Eloisa Lopez

Passengers wearing face masks and face shields for protection against the coronavirus disease (COVID-19) queue for bus rides going to provinces amid the holiday season, at the Paranaque Integrated Terminal Exchange, in Paranaque City, Metro Manila, Philippines, December 29, 2020. REUTERS/Eloisa Lopez

Passengers wearing face masks and face shields for protection against the coronavirus disease (COVID-19) queue for bus rides going to provinces amid the holiday season, at the Paranaque Integrated Terminal Exchange, in Paranaque City, Metro Manila, Philippines, December 29, 2020. REUTERS/Eloisa Lopez

Passengers wearing face masks and face shields for protection against the coronavirus disease (COVID-19) queue for bus rides going to provinces amid the holiday season, at the Paranaque Integrated Terminal Exchange, in Paranaque City, Metro Manila, Philippines, December 29, 2020. REUTERS/Eloisa Lopez

Passengers wearing face masks and face shields for protection against the coronavirus disease (COVID-19) queue for bus rides going to provinces amid the holiday season, at the Paranaque Integrated Terminal Exchange, in Paranaque City, Metro Manila, Philippines, December 29, 2020. REUTERS/Eloisa Lopez

People demonstrate to show their support for asylum seekers, and to denounce police violence and an unwelcoming policy towards migrants in France, after clashes sparked when French police cleared out a new migrant camp at Place de la Republique in Paris, France, November 24, 2020. The slogan reads "if a journalist threatens your psychic integrity, it's because you think like a fascist." REUTERS/Gonzalo Fuentes

Debojyoti Chakraborty, Senior Scientist, at the Council of Scientific and Industrial Research (CSIR) Institute of Genomics and Integrative Biology, shows the coronavirus disease (COVID-19) tests results done by 'Feluda' paper strips based test developed by CSIR, in New Delhi, India, November 11, 2020. REUTERS/Adnan Abidi

Lynn Nester, 53, stands in front of the Pennsylvania State Capitol Building to express his concerns about the integrity of the presidential election in Harrisburg, Pennsylvania November 8, 2020. REUTERS/Nathan Layne

Lynn Nester, 53, and Gerard (who would only give his first name) stand in front of the Pennsylvania State Capitol Building to express their concerns about the integrity of the presidential election in Harrisburg, Pennsylvania November 8, 2020. REUTERS/Nathan Layne

A combination of four pictures shows German Chancellor Merkel, wearing a face mask, attends the National Integration Summit at the Chancellery, as the spread of the coronavirus disease (COVID-19) continues in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch

A combination of four pictures shows German Chancellor Merkel wearing a face mask as she attends the National Integration Summit at the Chancellery, as the spread of the coronavirus disease (COVID-19) continues in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch

German Chancellor Merkel wears a face mask as she attends the National Integration Summit at the Chancellery, as the spread of the coronavirus disease (COVID-19) continues in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Merkel wears a face mask as she attends the National Integration Summit at the Chancellery, as the spread of the coronavirus disease (COVID-19) continues in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Merkel wears a face mask as she attends the National Integration Summit at the Chancellery, as the spread of the coronavirus disease (COVID-19) continues in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Merkel wears a face mask as she attends the National Integration Summit at the Chancellery, as the spread of the coronavirus disease (COVID-19) continues in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Angela Merkel walks with her spokesman Steffen Seibert as they attend the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Angela Merkel speaks with her spokesman Steffen Seibert as they attend the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Merkel attends the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Angela Merkel takes off her mask after arriving for the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Merkel attends the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Merkel attends the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Angela Merkel takes off her mask after arriving for the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Angela Merkel takes off her mask after arriving for the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Angela Merkel and Minister for Family Affairs, Senior Citizens, Women and Youth, Franziska Giffey attend the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Merkel attends the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Merkel attends the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Angela Merkel and Minister for Family Affairs, Senior Citizens, Women and Youth, Franziska Giffey arrive for the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Angela Merkel and Minister for Family Affairs, Senior Citizens, Women and Youth, Franziska Giffey arrive for the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Angela Merkel attends the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Merkel and Minister for Family Affairs, Senior Citizens, Women and Youth, Giffey arrive for the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Minister for Family Affairs, Senior Citizens, Women and Youth, Franziska Giffey arrives for the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool

German Chancellor Angela Merkel takes off her mask after arriving for the National Integration Summit at the Chancellery in Berlin, Germany October 19, 2020. REUTERS/Fabrizio Bensch/Pool