'Tally Weijl' store is seen closed due to the coronavirus disease (COVID-19) pandemic in Munich, Germany, February 5, 2021. Picture taken February 5, 2021. REUTERS/Michaela Rehle

Britain's Prime Minister Boris Johnson leads a virtual news conference on the COVID-19 pandemic inside 10 Downing Street in London, Britain January 26, 2021. Justin Tallis/Pool via REUTERS

Britain's Prime Minister Boris Johnson leads a virtual news conference on the COVID-19 pandemic inside 10 Downing Street in London, Britain January 26, 2021. Justin Tallis/Pool via REUTERS

Britain's Prime Minister Boris Johnson leads a virtual news conference on the COVID-19 pandemic inside 10 Downing Street in London, Britain January 26, 2021. Justin Tallis/Pool via REUTERS

Chief Executive of the National Health Service (NHS) Simon Stevens speaks during a virtual news conference on the COVID-19 pandemic inside 10 Downing Street in London, Britain January 26, 2021. Justin Tallis/Pool via REUTERS

Britain's Chief Medical Officer for England Chris Whitty arrives for a virtual news conference on the COVID-19 pandemic inside 10 Downing Street in London, Britain January 26, 2021. Justin Tallis/Pool via REUTERS

Britain's Prime Minister Boris Johnson leads a virtual news conference on the COVID-19 pandemic inside 10 Downing Street in London, Britain January 26, 2021. Justin Tallis/Pool via REUTERS

Britain's Prime Minister Boris Johnson leads a virtual news conference on the COVID-19 pandemic inside 10 Downing Street in London, Britain January 26, 2021. Justin Tallis/Pool via REUTERS

Britain's Prime Minister Boris Johnson leads a virtual news conference on the COVID-19 pandemic inside 10 Downing Street in London, Britain January 26, 2021. Justin Tallis/Pool via REUTERS

Britain's Prime Minister Boris Johnson looks down at the podium as he attends a virtual news conference on the COVID-19 pandemic inside 10 Downing Street in London, Britain January 26, 2021. Justin Tallis/Pool via REUTERS

Britain's Prime Minister Boris Johnson leads a virtual news conference on the COVID-19 pandemic inside 10 Downing Street in London, Britain January 26, 2021. Justin Tallis/Pool via REUTERS

Britain's Prime Minister Boris Johnson arrives to lead a virtual news conference on the COVID-19 pandemic inside 10 Downing Street in London, Britain January 26, 2021. Justin Tallis/Pool via REUTERS

Britain's Prime Minister Boris Johnson arrives to lead a virtual news conference on the COVID-19 pandemic inside 10 Downing Street in London, Britain January 26, 2021. Justin Tallis/Pool via REUTERS

Ballot boxes and other electoral materials are seen at the Kampala tally centre after the presidential and parliamentary elections in Kampala, Uganda January 15, 2021. REUTERS/Abubaker Lubowa

Ballot boxes and other electoral materials are seen at the Kampala tally centre after the presidential and parliamentary elections in Kampala, Uganda January 15, 2021. REUTERS/Abubaker Lubowa

Ballot boxes and other electoral materials are seen at the Kampala tally centre after the presidential and parliamentary elections in Kampala, Uganda January 15, 2021. REUTERS/Abubaker Lubowa

Ballot boxes and other electoral materials are seen at the Kampala tally centre after the presidential and parliamentary elections in Kampala, Uganda January 15, 2021. REUTERS/Abubaker Lubowa

A nurse administers the Pfizer/BioNTech COVID-19 vaccine to a man at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

A nurse administers the Pfizer/BioNTech COVID-19 vaccine to a woman at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

A nurse administers the Pfizer/BioNTech COVID-19 vaccine to a man at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

A nurse administers the Pfizer/BioNTech COVID-19 vaccine to a woman at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

A nurse administers the Pfizer/BioNTech COVID-19 vaccine to a woman at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

Medical personnel prepare to administer the Pfizer/BioNTech COVID-19 vaccine to recipients at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

A nurse administers the Pfizer/BioNTech COVID-19 vaccine to a woman at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

A nurse administers the Pfizer/BioNTech COVID-19 vaccine to a woman at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

A nurse speaks to a man prior to administering the Pfizer/BioNTech COVID-19 vaccine at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

Medical personnel wait to administer the Pfizer/BioNTech COVID-19 vaccine at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

Medical personnel are briefed prior to administering the Pfizer/BioNTech COVID-19 vaccine at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

Medical personnel wait to administer the Pfizer/BioNTech COVID-19 vaccine at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

Medical personnel prepare to administer the Pfizer/BioNTech COVID-19 vaccine at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

People wait before and after receiving the Pfizer/BioNTech COVID-19 vaccine at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS TPX IMAGES OF THE DAY

People rest after receiving the Pfizer/BioNTech COVID-19 vaccine at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

Medical personnel prepare to administer the Pfizer/BioNTech COVID-19 vaccine at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

A nurse administers the Pfizer/BioNTech COVID-19 vaccine to a woman at a vaccination centre, on the first day of the largest immunisation programme in the British history, in Cardiff, Wales, Britain December 8, 2020. Justin Tallis/Pool via REUTERS

U.S. Speaker of the House of Representatives Nancy Pelosi (D-CA) stands next to a sign showing a tally of 2020 U.S. election votes as she speaks during her weekly news conference at the U.S. Capitol in Washington, U.S., November 20, 2020. REUTERS/Jonathan Ernst

U.S. Speaker of the House of Representatives Nancy Pelosi (D-CA) stands next to a sign showing a tally of 2020 U.S. election votes as she speaks during her weekly news conference at the U.S. Capitol in Washington, U.S., November 20, 2020. REUTERS/Jonathan Ernst

U.S. Speaker of the House of Representatives Nancy Pelosi (D-CA) stands next to a poster showing a tally of 2020 U.S. election votes as she speaks during her weekly news conference at the U.S. Capitol in Washington, U.S., November 20, 2020. REUTERS/Jonathan Ernst

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Jonathan Joseph, Ben Youngs and Owen Farrell during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Max Malins during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Owen Farrell during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Ben Youngs during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Ben Youngs during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Ben Youngs during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Sam Underhill during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's George Ford during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Maro Itoje during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Max Malins and Ollie Lawrence during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's George Ford during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Joe Marler during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Mako Vunipola, Ben Earl and coach Matt Proudfoot during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Joe Launchbury during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Lewis Ludlam and Tom Curry during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Lewis Ludlam during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Max Malins during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Ollie Lawrence during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Max Malins during training Justin Tallis/Pool via REUTERS

Rugby Union - Autumn Nations Cup - England Training - The Lensbury Hotel, Teddington, Britain - November 18, 2020 England's Max Malins during training Justin Tallis/Pool via REUTERS