Workers unload a batch of doses of the Pfizer-BioNTech COVID-19 vaccine at Benito Juarez International Airport, as the coronavirus disease (COVID-19) outbreak continues, in Mexico City, Mexico, January 19, 2021. REUTERS/Henry Romero

Avril Haines speaks during her confirmation hearing before the Senate Intelligence Committee to be President-elect Joe Biden's national intelligence director in Washington, DC, U.S. January 19, 2021. Joe Raedle/Pool via REUTERS

Avril Haines speaks during her confirmation hearing before the Senate Intelligence Committee to be President-elect Joe Biden's national intelligence director in Washington, DC, U.S. January 19, 2021. Joe Raedle/Pool via REUTERS

Avril Haines speaks during her confirmation hearing before the Senate Intelligence Committee to be President-elect Joe Biden's national intelligence director in Washington, DC, U.S. January 19, 2021. Joe Raedle/Pool via REUTERS

U.S. Sen. Susan Collins (R-ME) questions Nominee for Director of National Intelligence Avril Haines before the Senate Intelligence Committee during a confirmation hearing on Capitol Hill in Washington, U.S., January 19, 2021. Melina Mara/Pool via REUTERS

Nominee for Director of National Intelligence Avril Haines appears before the Senate Intelligence Committee during a confirmation hearing on Capitol Hill in Washington, U.S., January 19, 2021. Melina Mara/Pool via REUTERS

Nominee for Director of National Intelligence Avril Haines appears before the Senate Intelligence Committee during a confirmation hearing on Capitol Hill in Washington, U.S., January 19, 2021. Melina Mara/Pool via REUTERS

Ruth Davidson, leader of the Scottish conservatives attends a session at the Parliament in Edinburgh, Scotland, Britain, January 19, 2021. REUTERS/Russel Cheyne/Pool

Scottish Health Secretary Jeane Freeman attends a session at the Parliament in Edinburgh, Scotland, Britain, January 19, 2021. REUTERS/Russel Cheyne/Pool

Scottish Education Secretary John Swinney attends a session at the Parliament in Edinburgh, Scotland, Britain, January 19, 2021. REUTERS/Russel Cheyne/Pool

Passengers wear face masks they received during an awareness campaign organized by the Ministry of Transport, as the spread of the coronavirus disease (COVID-19) continues, at Yopougon station in Abidjan, Ivory Coast January 19, 2021. REUTERS/Luc Gnago

A government COVID-19 advertisement is seen amid the outbreak of the coronavirus disease in London, Britain January 19, 2021. REUTERS/John Sibley

French Justice Minister Eric Dupond-Moretti visits the courtroom devoted to major trials which is under construction at the Palais de Justice courthouse in Paris, France January 19, 2021. Ludovic Marin/Pool via REUTERS

A government COVID-19 advertisement is seen in front of the Houses of Parliament amid the outbreak of the coronavirus disease in London, Britain January 19, 2021. REUTERS/John Sibley

A man exercises past a government COVID-19 advertisement amid the outbreak of the coronavirus disease (COVID-19) in London, Britain January 19, 2021. REUTERS/John Sibley

A man exercises along the South Bank amid the outbreak of the coronavirus disease (COVID-19) in London, Britain January 19, 2021. REUTERS/John Sibley

Members of the National Guard stand near the White House ahead of U.S. President-elect Joe Biden's inauguration in Washington, U.S., January 19, 2021. REUTERS/JOISHUA ROBERTS


French Justice Minister Eric Dupond-Moretti visits the courtroom devoted to major trials which is under construction at the Palais de Justice courthouse in Paris, France January 19, 2021. Ludovic Marin/Pool via REUTERS

French Justice Minister Eric Dupond-Moretti arrives at the Palais de Justice courthouse (Palace of Justice) for the presentation of the courtroom devoted to major trials in Paris, France January 19, 2021. Ludovic Marin/Pool via REUTERS

French Justice Minister Eric Dupond-Moretti arrives at the Palais de Justice courthouse (Palace of Justice) for the presentation of the courtroom devoted to major trials in Paris, France January 19, 2021. Ludovic Marin/Pool via REUTERS

Italian Prime Minister Giuseppe Conte drinks coffee during a debate at the Senate prior to a confidence vote, in Rome, Italy January 19, 2021. Alessandra Tarantino/Pool via REUTERS

A National Guard's vehicle is seen parked near the U.S. Capitol building ahead of U.S. President-elect Joe Biden's inauguration, in Washington, U.S., January 19, 2021. REUTERS/Andrew Kelly

A member of the military and the miedia look as workers unload a batch of doses of the Pfizer-BioNTech COVID-19 vaccine at Benito Juarez International Airport, as the coronavirus disease (COVID-19) outbreak continues, in Mexico City, Mexico, January 19, 2021. REUTERS/Henry Romero

A member of security stands guard as the plane with a batch of doses of the Pfizer-BioNTech COVID-19 vaccine is parked at Benito Juarez International Airport, as the coronavirus disease (COVID-19) outbreak continues, in Mexico City, Mexico, January 19, 2021. REUTERS/Henry Romero

French President Emmanuel Macron arrives at the frigate Bretagne before he delivers his new year wishes in Brest, France, January 19, 2021. REUTERS/Stephane Mahe/Pool

Members of the National Guard stand guard on the grounds of the U.S. Capitol building ahead of U.S. President-elect Joe Biden's inauguration, in Washington, U.S., January 19, 2021. REUTERS/Andrew Kelly

French President Emmanuel Macron arrives at the frigate Bretagne before he delivers his new year wishes in Brest, France, January 19, 2021. REUTERS/Stephane Mahe/Pool

Health care workers transport a patient at the Royal London Hospital, as the spread of the coronavirus disease (COVID-19) continues, in London, Britain, January 19, 2021. REUTERS/Hannah McKay

Italia Viva party leader and former Italian Prime Minister Matteo Renzi arrives to attend a debate at the Senate prior to a confidence vote, in Rome, Italy January 19, 2021. Alessandra Tarantino/Pool via REUTERS

Alejandro Mayorkas testifies during a Senate Homeland Security and Governmental affairs hearing on his nomination to be secretary of Department of Homeland Security (DHS) on Capitol Hill in Washington, U.S., January 19, 2021. REUTERS/Joshua Roberts/Pool?

A road safety officer distributes face masks during an awareness campaign organized by the Ministry of Transport, as the spread of the coronavirus disease (COVID-19) continues, at Yopougon station in Abidjan, Ivory Coast January 19, 2021. REUTERS/Luc Gnago

A road safety officer distributes face masks during an awareness campaign organized by the Ministry of Transport, as the spread of the coronavirus disease (COVID-19) continues, at Yopougon station in Abidjan, Ivory Coast January 19, 2021. REUTERS /Luc Gnago

People wear face masks given during an awareness campaign organized by the Ministry of Transport, as the spread of the coronavirus disease (COVID-19) continues, at Yopougon station in Abidjan, Ivory Coast January 19, 2021. REUTERS/Luc Gnago

A motorcyclist puts on a face mask he received during an awareness campaign organized by the Ministry of Transport, as the spread of the coronavirus disease (COVID-19) continues, at Yopougon station in Abidjan, Ivory Coast January 19, 2021. REUTERS /Luc Gnago

Road safety officers distribute face masks during an awareness campaign organized by the Ministry of Transport, as the spread of the coronavirus disease (COVID-19) continues, at Yopougon station in Abidjan, Ivory Coast January 19, 2021. REUTERS/Luc Gnago

Passengers wear face masks they received during an awareness campaign organized by the Ministry of Transport, as the spread of the coronavirus disease (COVID-19) continues, at Yopougon station in Abidjan, Ivory Coast January 19, 2021. REUTERS / Luc Gnago

A road safety officer talks to a driver during an awareness campaign organized by the Ministry of Transport, as the spread of the coronavirus disease (COVID-19) continues, at Songon station in Abidjan, Ivory Coast January 19, 2021. REUTERS /Luc Gnago

Scottish First Minister Nicola Sturgeon arrives to a session at the Parliament in Edinburgh, Scotland, Britain, January 19, 2021. REUTERS/Russel Cheyne/Pool

Scottish First Minister Nicola Sturgeon arrives to a session at the Parliament in Edinburgh, Scotland, Britain, January 19, 2021. REUTERS/Russel Cheyne/Pool

Scottish First Minister Nicola Sturgeon attends a session at the Parliament in Edinburgh, Scotland, Britain, January 19, 2021. REUTERS/Russel Cheyne/Pool

Italia Viva party leader and former Italian Prime Minister Matteo Renzi arrives to attend a debate at the Senate prior to a confidence vote, in Rome, Italy January 19, 2021. Alessandra Tarantino/Pool via REUTERS

Former Director of National Intelligence Daniel Coats and Nominee for Director of National Intelligence Avril Haines attend the Senate Intelligence Committee during a confirmation hearing on Capitol Hill in Washington, U.S., January 19, 2021. Melina Mara/Pool via REUTERS

European Commission vice-president in charge for promoting our European way of life Margaritis Schinas speaks at a news conference on actions to prevent a possible COVID-19 third wave on January 19, 2021 at the EU headquarters in Brussels, Belgium. Kenzo Tribouillard/Pool via REUTERS

European Commission vice-president in charge for promoting our European way of life Margaritis Schinas arrives for a news conference on actions to prevent a possible COVID-19 third wave on January 19, 2021 at the EU headquarters in Brussels, Belgium. Kenzo Tribouillard/Pool via REUTERS

European Commission vice-president in charge for promoting our European way of life Margaritis Schinas arrives for a news conference on actions to prevent a possible COVID-19 third wave on January 19, 2021 at the EU headquarters in Brussels, Belgium. Kenzo Tribouillard/Pool via REUTERS

U.S. Senator Mitt Romney (R-UT) attends a Senate Homeland Security and Governmental affairs hearing on Alejandro Mayorkas nomination to be secretary of Department of Homeland Security (DHS) on Capitol Hill in Washington, U.S., January 19, 2021. REUTERS/Joshua Roberts/Pool?

European Commission vice-president in charge for promoting our European way of life Margaritis Schinas arrives for a news conference on actions to prevent a possible COVID-19 third wave on January 19, 2021 at the EU headquarters in Brussels, Belgium. Kenzo Tribouillard/Pool via REUTERS

Members of the National Guard have coffee while standing watch at a barrier on a close street ahead of U.S. President-elect Joe Biden's Presidential Inauguration, in Washington D.C., U.S. January 19, 2021. REUTERS/Caitlin Ochs

A member of the National Guard stands near the U.S. Capitol building ahead of U.S. President-elect Joe Biden's inauguration, in Washington, U.S., January 19, 2021. REUTERS/Andrew Kelly

European Commission vice-president in charge for promoting our European way of life Margaritis Schinas speaks during a news conference on actions to prevent a possible COVID-19 third wave on January 19, 2021 at the EU headquarters in Brussels, Belgium. Kenzo Tribouillard/Pool via REUTERS

Members of the National Guard stand near the U.S. Capitol building ahead of U.S. President-elect Joe Biden's inauguration, in Washington, U.S., January 19, 2021. REUTERS/Andrew Kelly

Members of the National Guard patrol near the U.S. Capitol building ahead of U.S. President-elect Joe Biden's inauguration, in Washington, U.S., January 19, 2021. REUTERS/Andrew Kelly

U.S. Senator Rob Portman (R-OH) attends a Senate Homeland Security and Governmental affairs hearing on Alejandro Mayorkas nomination to be secretary of Department of Homeland Security (DHS) on Capitol Hill in Washington, U.S., January 19, 2021. REUTERS/Joshua Roberts/Pool


A vehicle with doses of the Pfizer-BioNTech COVID-19 vaccine is seen at Benito Juarez International Airport, as the coronavirus disease (COVID-19) outbreak continues, in Mexico City, Mexico, January 19, 2021. REUTERS/Henry Romero

EU Commissioner for Health Stella Kyriakides attends a news conference on actions to prevent a possible COVID-19 third wave on January 19, 2021 at the EU headquarters in Brussels, Belgium Kenzo Tribouillard/Pool via REUTERS

Scottish First Minister Nicola Sturgeon speaks at the Parliament in Edinburgh, Scotland, Britain, January 19, 2021. REUTERS/Russel Cheyne/Pool

Scottish First Minister Nicola Sturgeon attends a session at the Parliament in Edinburgh, Scotland, Britain, January 19, 2021. REUTERS/Russel Cheyne/Pool

Scottish First Minister Nicola Sturgeon attends a session at the Parliament in Edinburgh, Scotland, Britain, January 19, 2021. REUTERS/Russel Cheyne/Pool

Senator Rob Portman (R-OH) questions Alejandro Mayorkas, nominee to be Secretary of Homeland Security, during the Senate Homeland Security and Governmental Affairs Committee in Washington, DC, U.S. January 19, 2021. Bill Clark/Pool via REUTERS

EU Commissioner for Health Stella Kyriakides speaks during a news conference on actions to prevent a possible COVID-19 third wave on January 19, 2021 at the EU headquarters in Brussels, Belgium Kenzo Tribouillard/Pool via REUTERS