People wait in a line outside a vaccination centre to receive a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, during a vaccination drive for people above 60 years of age and those who are 45 or more and suffering from certain medical conditions, amid the outbreak of the COVID-19, in Mumbai, India, March 2, 2021. REUTERS/Francis Mascarenhas

People crowd up to register before receiving a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, during a vaccination drive for people above 60 years of age and those who are 45 or more and suffering from certain medical conditions, at a medical centre in New Delhi, India, March 1, 2021. REUTERS/Anushree Fadnavis

A man receives a dose of COVISHIELD, a coronavirus disease (COVID-19) vaccine manufactured by Serum Institute of India, during a vaccination drive for people above 60 years of age and those who are 45 or more and suffering from certain medical conditions, at a medical centre in New Delhi, India, March 1, 2021. REUTERS/Anushree Fadnavis

People wait to receive a dose of COVISHIELD, a COVID-19 vaccine manufactured by Serum Institute of India, during a vaccination drive for people above 60 years of age and those who are 45 or more and suffering from certain medical conditions, amid the outbreak of the coronavirus disease (COVID-19), in Mumbai, India, March 1, 2021. REUTERS/Francis Mascarenhas

A woman poses for a picture with a cardboard cutout after receiving a dose of COVISHIELD, a COVID-19 vaccine manufactured by Serum Institute of India, at a vaccination centre, after second wave of vaccination started today for the elderly with comorbidities, amid the spread of the coronavirus disease (COVID-19) in Mumbai, India, March 1, 2021. REUTERS/Francis Mascarenhas

A woman on a wheelchair reacts as she receives a dose of COVISHIELD, a COVID-19 vaccine manufactured by Serum Institute of India, during a vaccination drive for people above 60 years of age and those who are 45 or more and suffer from certain medical conditions, in Mumbai, India, March 1, 2021. REUTERS/Francis Mascarenhas

A convoy transports Argentina's President Alberto Fernandez after his visit to the Liomont Laboratory where the Oxford-AstraZeneca coronavirus disease (COVID-19) vaccine is manufactured, in Ocoyoacac, near Mexico City, Mexico February 22, 2021. REUTERS/Henry Romero

Staff members sanitize a podium space before U.S. President Joe Biden delivers remarks at a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner

U.S. President Joe Biden tours a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner

U.S. President Joe Biden gives a thumbs up to journalists and staff before boarding Air Force One at Kalamazoo Battle Creek International Airport in Portage, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner

U.S. President Joe Biden speaks after a tour of a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner

Pfizer CEO Albert Bourla speaks as U.S. President Joe Biden toured a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden arrives to board Air Force One after visiting a Pfizer manufacturing facility as he departs for Washington at Kalamazoo Battle Creek International Airport in Portage, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden boards Air Force One after visiting a Pfizer manufacturing facility as he departs for Washington at Kalamazoo Battle Creek International Airport in Portage, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden stops to speak after a tour of a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


Pfizer CEO Albert Bourla introduces U.S. President Joe Biden as the president toured a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden is seen through a camera viewfinder as he speaks following a tour at a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden speaks after a tour of a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


Members of the news media listen to U.S. President Joe Biden speak after a tour of a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden speaks after a tour of a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden removes his face mask to speak while being introduced by Pfizer CEO Albert Bourla during a tours of a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner

U.S. President Joe Biden stops to speak after a tour of a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden speaks after a tour of a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner
 TPX IMAGES OF THE DAY

U.S. President Joe Biden speaks after a tour of a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden removes his face mask to speak after a tour of a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden speaks following a tour of a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden removes his face mask to speak while being introduced by Pfizer CEO Albert Bourla during a tours of a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden is seen as he tours a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden tours a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner
 TPX IMAGES OF THE DAY

A thermostat reading -69 degrees Celsius is seen on a storage unit as U.S. President Joe Biden tours a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


Michigan Governor Gretchen Whitmer folllows along as U.S. President Joe Biden tours a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden observes a demonstration of the vaccine packaging process as he tours a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner?

U.S. President Joe Biden speaks with employees while observing a demonstration of the vaccine packaging process as he tours a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner?

U.S. President Joe Biden observes a demonstration of the vaccine packaging process as he tours a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden looks at a pallet of vaccines as he tours a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden speaks as he tours a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


Pfizer mployees handle containers of vaccine as U.S. President Joe Biden tours a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden watches employees handle containers of vaccine as he tours a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner?

U.S. President Joe Biden tours a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden tours a Pfizer manufacturing plant producing the coronavirus disease (COVID-19) vaccine in Kalamazoo, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden disembarks from Air Force One on his way to visit a Pfizer manufacturing facility as he arrives at Kalamazoo Battle Creek International Airport in Portage, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


Supporters of former President Donald Trump protest as U.S. President Joe Biden visits a Pfizer manufacturing facility after Biden arrived at Kalamazoo Battle Creek International Airport in Portage, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner


U.S. President Joe Biden exits Air Force One on his way to visit a Pfizer manufacturing facility as he arrives at Kalamazoo Battle Creek International Airport in Portage, Michigan, U.S., February 19, 2021. REUTERS/Tom Brenner?

U.S. President Joe Biden boards Air Force One as he departs Washington for travel to visit a Pfizer manufacturing plant in Michigan, at Joint Base Andrews, Maryland, U.S., February 19, 2021. REUTERS/Tom Brenner?

U.S. President Joe Biden exits his vehicle to board Air Force One as he departs Washington for travel to visit a Pfizer manufacturing plant in Michigan, at Joint Base Andrews, Maryland, U.S., February 19, 2021. REUTERS/Tom Brenner?

U.S. President Joe Biden returns a salute while boarding Air Force One as he departs Washington for travel to visit a Pfizer manufacturing plant in Michigan, at Joint Base Andrews, Maryland, U.S., February 19, 2021. REUTERS/Tom Brenner?

U.S. President Joe Biden boards Air Force One as he departs Washington for travel to visit a Pfizer manufacturing plant in Michigan, at Joint Base Andrews, Maryland, U.S., February 19, 2021. REUTERS/Tom Brenner?

U.S. President Joe Biden salutes while boarding Air Force One as he departs Washington for travel to visit a Pfizer manufacturing plant in Michigan, at Joint Base Andrews, Maryland, U.S., February 19, 2021. REUTERS/Tom Brenner


A board with the logo of Russian arms manufacturer Kalashnikov is on display in an office in Moscow, Russia February 8, 2021. Picture taken February 8, 2021. REUTERS/Maxim Shemetov

Dmitry Tarasov, CEO of Russia's leading weapons manufacturer Kalashnikov, demonstrates the company's innovation, the Ultima hi-tech shotgun, during an interview in an office in Moscow, Russia February 8, 2021. Picture taken February 8, 2021. REUTERS/Maxim Shemetov

Dmitry Tarasov, Chief Executive of Russia's leading weapons manufacturer Kalashnikov, holds a weapon during an interview at the company's office in Moscow, Russia February 8, 2021. Picture taken February 8, 2021. REUTERS/Maxim Shemetov

Dmitry Tarasov, Chief Executive of Russia's leading weapons manufacturer Kalashnikov, speaks during an interview at the company's office in Moscow, Russia February 8, 2021. Picture taken February 8, 2021. REUTERS/Maxim Shemetov

Weapons are on display in an office of Russian arms manufacturer Kalashnikov in Moscow, Russia February 8, 2021. Picture taken February 8, 2021. REUTERS/Maxim Shemetov

Dmitry Tarasov, Chief Executive of Russia's leading weapons manufacturer Kalashnikov, poses for a picture during an interview at the company's office in Moscow, Russia February 8, 2021. Picture taken February 8, 2021. REUTERS/Maxim Shemetov

Dmitry Tarasov, CEO of Russia's leading weapons manufacturer Kalashnikov, speaks during an interview at the company's office in Moscow, Russia February 8, 2021. Picture taken February 8, 2021. REUTERS/Maxim Shemetov

The logo of Swiss watch manufacturer IWC Schaffhausen is seen at the company's store, as the spread of the coronavirus disease (COVID-19) continues, at the Bahnhofstrasse shopping street in Zurich, Switzerland February 17, 2021. REUTERS/Arnd Wiegmann

The logo of Swiss watch manufacturer Omega is seen at the company's store, as the spread of the coronavirus disease (COVID-19) continues, at the Bahnhofstrasse shopping street in Zurich, Switzerland February 17, 2021. REUTERS/Arnd Wiegmann

Watches of manufacturer IWC Schaffhausen are displayed at the company's store, as the spread of the coronavirus disease (COVID-19) continues, at the Bahnhofstrasse shopping street in Zurich, Switzerland February 17, 2021. REUTERS/Arnd Wiegmann

The logo of Swiss watch manufacturer rolex is seen at a store, as the spread of the coronavirus disease (COVID-19) continues, at the Bahnhofstrasse shopping street in Zurich, Switzerland February 17, 2021. REUTERS/Arnd Wiegmann

A woman touches an elevator button of Swiss manufacturer Schindler at an office building in Zurich, Switzerland February 17, 2021. REUTERS/Arnd Wiegmann