Susan Janet Crouch, a 71-year old woman from Britain living in Turkey, receives the first dose of Sinovac's CoronaVac coronavirus disease (COVID-19) vaccine at a healthcare centre as nationwide vaccination continues for seniors, in the Mediterranean town of Side, in Antalya province, Turkey March 4, 2021. REUTERS/Kaan Soyturk

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 4, 2021 Competitors react during the womens 4x5km cross country relay REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

Rudiger Stump, a 71-year old man from Germany living in Turkey, gives a thumbs up after receiving the first dose of Sinovac's CoronaVac coronavirus disease (COVID-19) vaccine at a healthcare centre as nationwide vaccination continues for seniors, in the Mediterranean town of Side, in Antalya province, Turkey March 4, 2021. REUTERS/Kaan Soyturk

A supporter of pro-democracy activists holds his flashlight as a prison van carrying some of the 47 pro-democracy activists charged under national security law arrives at Lai Chi Kok Reception Centre, in Hong Kong, China March 4, 2021. REUTERS/Tyrone Siu

A bus moves outside St Bartholomew's Hospital, where Britain's Prince Philip has been admitted, in London, Britain March 4, 2021. REUTERS/Peter Cziborra

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 4, 2021 Austria's Johannes Lamparter celebrates winning the Men Individual Gundersen Large Hill/10km REUTERS/Kai Pfaffenbach

Security forces clash with supporters of opposition leader Ousmane Sonko, who was arrested following sexual assault accusations, in Dakar, Senegal March 4, 2021. REUTERS/Zohra Bensemra

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Security forces members react during clashes with supporters of opposition leader Ousmane Sonko, who was arrested following sexual assault accusations, in Dakar, Senegal March 4, 2021. REUTERS/Zohra Bensemra

U.S. Capitol Police secure a checkpoint after police warned that a militia group might try to attack the Capitol complex in Washington, U.S. March 4, 2021. REUTERS/Jonathan Ernst

National Guard soldiers patrol the grounds of the U.S. Capitol after police warned that a militia group might try to attack the Capitol complex in Washington, U.S. March 4, 2021. REUTERS/Jonathan Ernst

National Guard soldiers patrol the grounds of the U.S. Capitol after police warned that a militia group might try to attack the Capitol complex in Washington, U.S. March 4, 2021. REUTERS/Jonathan Ernst

The German share price index DAX graph is pictured at the stock exchange in Frankfurt, Germany, March 4, 2021. REUTERS/Staff

National Guard soldiers patrol the grounds of the U.S. Capitol after police warned that a militia group might try to attack the Capitol complex in Washington, U.S. March 4, 2021. REUTERS/Jonathan Ernst

A security forces member aims his weapon during clashes with supporters of opposition leader Ousmane Sonko, who was arrested following sexual assault accusations, in Dakar, Senegal March 4, 2021. REUTERS/Zohra Bensemra

Supporters of pro-democracy activists hold their flashlights as a prison van carrying some of the 47 pro-democracy activists charged under national security law arrives at Lai Chi Kok Reception Centre, in Hong Kong, China March 4, 2021. REUTERS/Tyrone Siu

Supporters of pro-democracy activists hold their flashlights as a prison van carrying some of the 47 pro-democracy activists charged under national security law arrives at Lai Chi Kok Reception Centre, in Hong Kong, China March 4, 2021. REUTERS/Tyrone Siu

A view of St Bartholomew's Hospital, where Britain's Prince Philip has been admitted, in London, Britain March 4, 2021. REUTERS/Peter Cziborra

Israeli Prime Minister Benjamin Netanyahu holds up a document, that is part of the "Green Pass" system, which grants certain privileges to citizens who have had both doses of the vaccine against the coronavirus disease (COVID-19) or have recovered from COVID-19, as Austrian Chancellor Sebastian Kurz and Denmark's Prime Minister Mette Frederiksen stand nearby during a visit at a gym to observe the "Green Pass" system, in Modiin, Israel March 4, 2021. Avigail Uzi/Pool via REUTERS

A woman smokes outside St Bartholomew's Hospital, where Britain's Prince Philip has been admitted, in London, Britain March 4, 2021. REUTERS/Peter Cziborra

Supporters of opposition leader Ousmane Sonko, who was arrested following sexual assault accusations, hide behind a makeshift barricade during clashes with security forces, in Dakar, Senegal March 4, 2021. REUTERS/Zohra Bensemra

Supporters of opposition leader Ousmane Sonko, who was arrested following sexual assault accusations, hurl stones during clashes with security forces, in Dakar, Senegal March 4, 2021. REUTERS/Zohra Bensemra

German FM Heiko Maas meets Serbian counterpart Nikola Selakovic at the foreign ministry in Berlin, Germany, March 4, 2021. Kay Nietfeld/Pool via REUTERS

German FM Heiko Maas meets Serbian counterpart Nikola Selakovic at the foreign ministry in Berlin, Germany, March 4, 2021. Kay Nietfeld/Pool via REUTERS

German FM Heiko Maas meets Serbian counterpart Nikola Selakovic at the foreign ministry in Berlin, Germany, March 4, 2021. Kay Nietfeld/Pool via REUTERS

German FM Heiko Maas meets Serbian counterpart Nikola Selakovic at the foreign ministry in Berlin, Germany, March 4, 2021. Kay Nietfeld/Pool via REUTERS

German FM Heiko Maas meets Serbian counterpart Nikola Selakovic at the foreign ministry in Berlin, Germany, March 4, 2021. Kay Nietfeld/Pool via REUTERS

Chinese dissident artist Ai Weiwei poses before an interview with Reuters in Montemor-O-Novo, Portugal, March 3, 2021. Picture taken March 3, 2021. REUTERS/Pedro Nunes

Chinese dissident artist Ai Weiwei speaks during an interview with Reuters in Montemor-O-Novo, Portugal, March 3, 2021. Picture taken March 3, 2021. REUTERS/Pedro Nunes

Chinese dissident artist Ai Weiwei poses before an interview with Reuters in Montemor-O-Novo, Portugal, March 3, 2021. Picture taken March 3, 2021. REUTERS/Pedro Nunes

Israeli Prime Minister Benjamin Netanyahu speaks as Austrian Chancellor Sebastian Kurz and Denmark's Prime Minister Mette Frederiksen stand nearby during a visit at a gym to observe the "Green Pass" system, which grants certain privileges to citizens who have had both doses of the vaccine against the coronavirus disease (COVID-19) or have recovered from COVID-19, in Modiin, Israel March 4, 2021. Avigail Uzi/Pool via REUTERS

Chinese dissident artist Ai Weiwei poses before an interview with Reuters in Montemor-O-Novo, Portugal, March 3, 2021. Picture taken March 3, 2021. REUTERS/Pedro Nunes

Chinese dissident artist Ai Weiwei poses before an interview with Reuters in Montemor-O-Novo, Portugal, March 3, 2021. Picture taken March 3, 2021. REUTERS/Pedro Nunes

Chinese dissident artist Ai Weiwei poses before an interview with Reuters in Montemor-O-Novo, Portugal, March 3, 2021. Picture taken March 3, 2021. REUTERS/Pedro Nunes

National Guard soldiers cross an empty intersection as they patrol the grounds of the U.S. Capitol after police warned that a militia group might try to attack the Capitol complex in Washington, U.S. March 4, 2021. REUTERS/Jonathan Ernst

German FM Heiko Maas meets Serbian counterpart Nikola Selakovic at the foreign ministry in Berlin, Germany, March 4, 2021. Kay Nietfeld/Pool via REUTERS

Denmark's Prime Minister Mette Frederiksen looks at her Israeli counterpart Benjamin Netanyahu as he lifts a weight during a visit including Austrian Chancellor Sebastian Kurz, at a gym to observe the "Green Pass" system, which grants certain privileges to citizens who have had both doses of the vaccine against the coronavirus disease (COVID-19) or have recovered from COVID-19, in Modiin, Israel March 4, 2021. Avigail Uzi/Pool via REUTERS

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 4, 2021 Austria's Johannes Lamparter celebrates winning the Men Individual Gundersen Large Hill/10km with teammates REUTERS/Kai Pfaffenbach

Supporters of opposition leader Ousmane Sonko, who was arrested following sexual assault accusations, hurl stones during clashes with security forces, in Dakar, Senegal March 4, 2021. REUTERS/Zohra Bensemra

Supporters of opposition leader Ousmane Sonko, who was arrested following sexual assault accusations, carry stones during clashes with security forces, in Dakar, Senegal March 4, 2021. REUTERS/Zohra Bensemra

Israeli Prime Minister Benjamin Netanyahu gestures as Austrian Chancellor Sebastian Kurz and Denmark's Prime Minister Mette Frederiksen stand nearby during a visit at a gym to observe the "Green Pass" system, which grants certain privileges to citizens who have had both doses of the vaccine against the coronavirus disease (COVID-19) or have recovered from COVID-19, in Modiin, Israel March 4, 2021. Avigail Uzi/Pool via REUTERS

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 4, 2021 Austria's Johannes Lamparter celebrates winning the Men Individual Gundersen Large Hill/10km with teammates REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 4, 2021 Austria's Johannes Lamparter celebrates winning the Men Individual Gundersen Large Hill/10km with teammates REUTERS/Kai Pfaffenbach

Supporters of opposition leader Ousmane Sonko, who was arrested following sexual assault accusations, hurl stones during clashes with security forces, in Dakar, Senegal March 4, 2021. REUTERS/Zohra Bensemra

Doctor Nabough al-Awa, a member of the country's coronavirus advisory committee, speaks during an interview with Reuters in Damascus, Syria March 4, 2021. REUTERS/Firas Makdesi

People stand outside a hospital in Damascus, amid concerns over the spread of the coronavirus disease (COVID-19), in Damascus, Syria March 3, 2021. Picture taken March 3, 2021. REUTERS/Firas Makdesi

Doctor Nabough al-Awa, a member of the country's coronavirus advisory committee, speaks during an interview with Reuters in Damascus, Syria March 4, 2021. REUTERS/Firas Makdesi

A volunteer adjusts an oxygen cylinder, to be delivered to people who suffer from the coronavirus disease (COVID-19) and receive home care, in Damascus, Syria March 3, 2021. Picture taken March 3, 2021. REUTERS/Firas Makdesi

A volunteer adjusts an oxygen cylinder, to be delivered to people who suffer from the coronavirus disease (COVID-19) and receive home care, in Damascus, Syria March 3, 2021. Picture taken March 3, 2021. REUTERS/Firas Makdesi

People stand outside a hospital in Damascus, amid concerns over the spread of the coronavirus disease (COVID-19), in Damascus, Syria March 3, 2021. Picture taken March 3, 2021. REUTERS/Firas Makdesi

A volunteer carries an oxygen cylinder, to be delivered to a patient suffering from the coronavirus disease (COVID-19) and receiving home care, in Damascus, Syria March 3, 2021. Picture taken March 3, 2021. REUTERS/Firas Makdesi

Israeli Prime Minister Benjamin Netanyahu gestures as Austrian Chancellor Sebastian Kurz stands nearby during a visit at a gym to observe the "Green Pass" system, which grants certain privileges to citizens who have had both doses of the vaccine against the coronavirus disease (COVID-19) or have recovered from COVID-19, in Modiin, Israel March 4, 2021. Avigail Uzi/Pool via REUTERS

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 4, 2021 Austria's Johannes Lamparter celebrates winning the Men Individual Gundersen Large Hill/10km with teammates REUTERS/Kai Pfaffenbach

National People's Congress (NPC) spokesman Zhang Yesui is seen on screens during a news conference held via video link ahead of the annual parliament meeting in Beijing, China March 4, 2021. REUTERS/Yew Lun Tian

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 4, 2021 Austria's Johannes Lamparter celebrates winning the Men Individual Gundersen Large Hill/10km with teammates REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 4, 2021 Austria's Johannes Lamparter celebrates winning the Men Individual Gundersen Large Hill/10km with teammates REUTERS/Kai Pfaffenbach

National People's Congress (NPC) spokesman Zhang Yesui is seen on a screen during a news conference held via video link ahead of the annual parliament meeting in Beijing, China March 4, 2021. REUTERS/Yew Lun Tian

Supporters of opposition leader Ousmane Sonko, who was arrested following sexual assault accusations, hide behind a makeshift barricade during clashes with security forces, in Dakar, Senegal March 4, 2021. REUTERS/Zohra Bensemra

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 4, 2021 Austria's Johannes Lamparter celebrates winning the Men Individual Gundersen Large Hill/10km with teammates REUTERS/Kai Pfaffenbach

National People's Congress (NPC) spokesman Zhang Yesui is seen on screens during a news conference held via video link ahead of the annual parliament meeting in Beijing, China March 4, 2021. REUTERS/Yew Lun Tian