Japan's Prime Minister Yoshihide Suga, wearing a protective face mask, attends the opening of an ordinary session of the parliament, in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

Japan's Deputy Prime Minister and Finance Minister Taro Aso, wearing a protective face mask, delivers his policy speech at the opening of an ordinary session of the parliament in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

A medical worker collects a swab sample from a woman to be tested for the coronavirus disease (COVID-19), in the southern Gaza Strip January 14, 2021. Picture taken January 14, 2021. REUTERS/Ibraheem Abu Mustafa

A Palestinian medical worker leaves a home after collecting swab samples from people to be tested for the coronavirus disease (COVID-19), in the southern Gaza Strip January 14, 2021. Picture taken January 14, 2021. REUTERS/Ibraheem Abu Mustafa

A Palestinian boy looks out of his home as a medical worker collects a swab sample from a woman to be tested for the coronavirus disease (COVID-19), in the southern Gaza Strip January 14, 2021. Picture taken January 14, 2021. REUTERS/Ibraheem Abu Mustafa

Volunteer guards of the anti-government protest movement scuffle with police officers at the Khlong Luang police station in Pathum Thani province, Thailand, January 15, 2021. Picture taken January 15, 2021. REUTERS/Athit Perawongmetha

Volunteer guards of the anti-government protest movement stand guard in front of police officers at the Khlong Luang police station in Pathum Thani province, Thailand, January 15, 2021. Picture taken January 15, 2021. REUTERS/Athit Perawongmetha

Volunteer guards of the anti-government protest movement scuffle with police officers at the Khlong Luang police station in Pathum Thani province, Thailand, January 15, 2021. Picture taken January 15, 2021. REUTERS/Athit Perawongmetha

Japan's Deputy Prime Minister and Financial Minister Taro Aso delivers his policy speech at the opening of the Lower House plenary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

Japan's Deputy Prime Minister and Financial Minister Taro Aso prepares to deliver his policy speech at the opening of the Lower House plenary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

Palestinian medical workers walk as they arrive to collect swab samples from people to be tested for the coronavirus disease (COVID-19), in the southern Gaza Strip January 14, 2021. Picture taken January 14, 2021. REUTERS/Ibraheem Abu Mustafa

A Palestinian medical worker collects a swab sample from a man to be tested for the coronavirus disease (COVID-19), in the southern Gaza Strip January 14, 2021. Picture taken January 14, 2021. REUTERS/Ibraheem Abu Mustafa

A Palestinian medical worker collects a swab sample from a boy to be tested for the coronavirus disease (COVID-19), in the southern Gaza Strip January 14, 2021. Picture taken January 14, 2021. REUTERS/Ibraheem Abu Mustafa

A Palestinian medical worker collects a swab sample from a boy to be tested for the coronavirus disease (COVID-19), in the southern Gaza Strip January 14, 2021. Picture taken January 14, 2021. REUTERS/Ibraheem Abu Mustafa

An ally of Russian opposition leader Alexei Navalny accompanied by police officers enters a police station where detained Navalny is being held, in Khimki outside Moscow, Russia January 18, 2021. REUTERS/Tatyana Makeyeva

A view shows a police station where detained Russian opposition leader Alexei Navalny is being held, in Khimki outside Moscow, Russia January 18, 2021. REUTERS/Tatyana Makeyeva

Police officers stand outside a police station where detained Russian opposition leader Alexei Navalny is being held, in Khimki outside Moscow, Russia January 18, 2021. REUTERS/Tatyana Makeyeva

People wait to be tested for the coronavirus disease (COVID-19) in Petaling Jaya, Malaysia January 18, 2021. REUTERS/Lim Huey Teng

Medical worker collects a swab sample from a woman to be tested for the coronavirus disease (COVID-19) in Petaling Jaya, Malaysia January 18, 2021. REUTERS/Lim Huey Teng

Medical worker collects a swab sample from a man to be tested for the coronavirus disease (COVID-19) in Petaling Jaya, Malaysia January 18, 2021. REUTERS/Lim Huey Teng

Police officers stand outside a police station where detained Russian opposition leader Alexei Navalny is being held, in Khimki outside Moscow, Russia January 18, 2021. REUTERS/Tatyana Makeyeva

Medical worker collects a swab sample from a man to be tested for the coronavirus disease (COVID-19) in Petaling Jaya, Malaysia January 18, 2021. REUTERS/Lim Huey Teng

People wait to be tested for the coronavirus disease (COVID-19) in Petaling Jaya, Malaysia January 18, 2021. REUTERS/Lim Huey Teng

Medical worker collects a swab sample from a man to be tested for the coronavirus disease (COVID-19) in Petaling Jaya, Malaysia January 18, 2021. REUTERS/Lim Huey Teng

People wait to be tested for the coronavirus disease (COVID-19) in Petaling Jaya, Malaysia January 18, 2021. REUTERS/Lim Huey Teng

A general view shows an Alpine resort, as the spread of the coronavirus disease (COVID-19) continues, in St. Moritz, Switzerland December 11, 2020. Picture taken December 11, 2020. REUTERS/Arnd Wiegmann

Japan's Deputy Prime Minister and Financial Minister Taro Aso and Japan's Prime Minister Yoshihide Suga leave the Lower House plenary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

Japan's Deputy Prime Minister and Financial Minister Taro Aso and Japan's Prime Minister Yoshihide Suga attend the Lower House plenary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

Japan's Economy Minister and minister in charge of coronavirus response Yasutoshi Nishimura delivers his policy speech at the opening of the Lower House plenary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

Japan's Economy Minister and minister in charge of coronavirus response Yasutoshi Nishimura delivers his policy speech at the opening of the Lower House plenary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

Japan's Prime Minister Yoshihide Suga adjusts his face mask as he delivers his policy speech at the opening of the Lower House parliamentary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

Japan's Prime Minister Yoshihide Suga takes a sip of water as he delivers his policy speech at the opening of the Lower House parliamentary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

Empty seats are seen as lawmakers practice social distancing, during Japan's Prime Minister Yoshihide Suga's policy speech at the opening of the Lower House parliamentary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

Empty seats are seen as lawmakers practice social distancing, during Japan's Prime Minister Yoshihide Suga's policy speech at the opening of the Lower House parliamentary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

Vice Administrator of China National Space Administration Wu Yanhua speaks at an event on China’s lunar exploration program, at the National Astronomical Observatories of Chinese Academy of Sciences, in Beijing, China, January 18, 2021. REUTERS/Tingshu Wang

Space Counsellor and CNES Representative to the French Embassy in China Norbert Paluch attends an interview with media reporters at an event on China’s lunar exploration program, in the National Astronomical Observatories of Chinese Academy of Sciences, in Beijing, China, January 18, 2021. REUTERS/Tingshu Wang

Vice President of Chinese Academy of Sciences (CAS) Zhang Yaping speaks at an event on China’s lunar exploration program, at the National Astronomical Observatories of CAS, in Beijing, China, January 18, 2021. REUTERS/Tingshu Wang

Japan's Prime Minister Yoshihide Suga delivers his policy speech at the opening of the Lower House parliamentary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

A screen shows footages of researchers holding an equipment carrying lunar sample from Chang'e-5 Mission, during an event on China’s lunar exploration program, at the National Astronomical Observatories of Chinese Academy of Sciences (CAS), in Beijing, China, January 18, 2021. REUTERS/Tingshu Wang

A screen shows footages of spacecraft for Chang'e-5 Mission, during an event on China’s lunar exploration program, at the National Astronomical Observatories of Chinese Academy of Sciences (CAS), in Beijing, China, January 18, 2021. REUTERS/Tingshu Wang

Administrator of China National Space Administration Zhang Kejian speaks at an event on China’s lunar exploration program, at the National Astronomical Observatories of Chinese Academy of Sciences, in Beijing, China January 18, 2021. REUTERS/Tingshu Wang

Pei Zhaoyu, spokesperson for Chang’e-5 Mission and deputy director of Lunar Exploration and Space Engineering Center of the China National Space Administration (CNSA), introduces models of lunar exploration spacecraft to guests, at the National Astronomical Observatories of Chinese Academy of Sciences (CAS), in Beijing, China, January 18, 2021. REUTERS/Tingshu Wang

Pei Zhaoyu, spokesperson for Chang’e-5 Mission and deputy director of Lunar Exploration and Space Engineering Center of the China National Space Administration (CNSA), introduces the reentry module which has carried moon sample back to earth, at the National Astronomical Observatories of Chinese Academy of Sciences (CAS), in Beijing, China, January 18, 2021. REUTERS/Tingshu Wang

Pei Zhaoyu, spokesperson for Chang’e-5 Mission and deputy director of Lunar Exploration and Space Engineering Center of the China National Space Administration (CNSA), introduces the reentry module which has carried moon sample back to earth, at the National Astronomical Observatories of Chinese Academy of Sciences (CAS), in Beijing, China, January 18, 2021. REUTERS/Tingshu Wang

Japan's Prime Minister Yoshihide Suga talks with Deputy Prime Minister and Finance Minister Taro Aso, during the opening of the Lower House parliamentary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

Army soldiers take part in the rehearsal for the Republic Day parade, in New Delhi, India January 18, 2021. REUTERS/Adnan Abidi

Japan's Prime Minister Yoshihide Suga and Deputy Prime Minister and Finance Minister Taro Aso, attend the opening of the Lower House parliamentary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

Japan's Prime Minister Yoshihide Suga bows next to Deputy Prime Minister and Finance Minister Taro Aso, during his policy speech, at the opening of the Lower House parliamentary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

An Army soldier checks his sword during the rehearsal for the Republic Day parade, in New Delhi, India January 18, 2021. REUTERS/Adnan Abidi TPX IMAGES OF THE DAY

Army soldiers stand atop military vehicles during the rehearsal for the Republic Day parade, in New Delhi, India January 18, 2021. REUTERS/Adnan Abidi

Japan's Prime Minister Yoshihide Suga delivers his policy speech at the opening of the Lower House parliamentary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

Japan's Prime Minister Yoshihide Suga delivers his policy speech at the opening of the Lower House parliamentary session in Tokyo, Japan January 18, 2021. REUTERS/Issei Kato

People are tested at a nucleic acid testing site following an outbreak of the coronavirus disease (COVID-19) in Beijing, China, January 18, 2021. REUTERS/Thomas Peter

Army soldiers take part in the rehearsal for the Republic Day parade, in New Delhi, India January 18, 2021. REUTERS/Adnan Abidi

Medical staff in PPE are seen at a nucleic acid testing site following an outbreak of the coronavirus disease (COVID-19) in Beijing, China, January 18, 2021. REUTERS/Thomas Peter

A soldier rests seated next to firearms during the rehearsal for the Republic Day parade, in New Delhi, India January 18, 2021. REUTERS/Adnan Abidi

Medical staff in PPE are seen at a nucleic acid testing site following an outbreak of the coronavirus disease (COVID-19) in Beijing, China, January 18, 2021. REUTERS/Thomas Peter

Samsung Group heir Jay Y. Lee arrives at a court in Seoul, South Korea, January 18, 2021. REUTERS/Kim Hong-Ji

A person gets tested at a nucleic acid testing site following an outbreak of the coronavirus disease (COVID-19) in Beijing, China, January 18, 2021. REUTERS/Thomas Peter

Samsung Group heir Jay Y. Lee arrives at a court in Seoul, South Korea, January 18, 2021. REUTERS/Kim Hong-Ji