Commuter Garnett Ricketts waits the mandatory 15 minutes after receiving the Johnson & Johnson vaccine for the coronavirus disease (COVID-19) during the opening of MTA's public vaccination program at the 179th Street subway station in the Queens borough of New York City, New York, U.S., May 12, 2021. REUTERS/Shannon Stapleton

Clinician Kiea Riddick prepares a dose of the Johnson & Johnson vaccine for the coronavirus disease (COVID-19) for a commuter during the opening of MTA's public vaccination program at the 179th Street subway station in the Queens borough of New York City, New York, U.S., May 12, 2021. REUTERS/Shannon Stapleton

Commuter Nyah Ricketts receives a dose of the Johnson & Johnson vaccine for the coronavirus disease (COVID-19) during the opening of MTA's public vaccination program at the 179th Street subway station in the Queens borough of New York City, New York, U.S., May 12, 2021. REUTERS/Shannon Stapleton

A healthcare clinician prepares a dose of the Johnson & Johnson vaccine for the coronavirus disease (COVID-19) for a commuter during the opening of MTA's public vaccination program at the 179th Street subway station in the Queens borough of New York City, New York, U.S., May 12, 2021. REUTERS/Shannon Stapleton

Commuter Garnett Ricketts waits the mandatory 15 minutes after receiving the Johnson & Johnson vaccine for the coronavirus disease (COVID-19) during the opening of MTA's public vaccination program at the 179th Street subway station in the Queens borough of New York City, New York, U.S., May 12, 2021. REUTERS/Shannon Stapleton

Clinician kiea Riddick (L) prepares a dose of the Johnson & Johnson vaccine for the coronavirus disease (COVID-19) for a commuter during the opening of MTA's public vaccination program at the 179th Street subway station in the Queens borough of New York City, New York, U.S., May 12, 2021. REUTERS/Shannon Stapleton

A commuter receives a vaccination shot for the coronavirus disease (COVID-19) during the opening of MTA's public vaccination program at the 179th Street subway station in the Queens borough of New York City, New York, U.S., May 12, 2021. REUTERS/Shannon Stapleton

A commuter receives a vaccination shot for the coronavirus disease (COVID-19) during the opeing of MTA's public vaccination program at Grand Central Station Terminal train station in Manhattan in New York City, New York, U.S., May 12, 2021. REUTERS/Carlo Allegri

MTA Chairman and CEO Patrick Foye speaks at the opening of the MTA?s public vaccination program where rail customers can receive free rail passes and vaccinations for the coronavirus disease (COVID-19) at Grand Central Station Terminal train station in Manhattan in New York City, New York, U.S., May 12, 2021. REUTERS/Carlo Allegri

MTA Chairman and CEO Patrick Foye holds up a MetroCard pass at the opening of the MTA?s public vaccination program where rail customers can receive free vaccinations for the coronavirus disease (COVID-19) at Grand Central Station Terminal train station in Manhattan in New York City, New York, U.S., May 12, 2021. REUTERS/Carlo Allegri

A commuter rolls up his sleeve to receive a vaccination shot for the coronavirus disease (COVID-19) at Grand Central Station Terminal train station in Manhattan in New York City, New York, U.S., May 12, 2021. REUTERS/Carlo Allegri

Commuters wait for the metro train, one of the busiest metro systems in the world, in Mexico City, Mexico May 7, 2021. REUTERS/Carlos Jasso

Commuters wait for the metro train, one of the busiest metro systems in the world, in Mexico City, Mexico May 7, 2021. REUTERS/Carlos Jasso

Commuters wait for the metro train, one of the busiest metro systems in the world, in Mexico City, Mexico May 7, 2021. REUTERS/Carlos Jasso

Commuters wait for the metro train, one of the busiest metro systems in the world, in Mexico City, Mexico May 7, 2021. REUTERS/Carlos Jasso

Commuters wait for the metro train, one of the busiest metro systems in the world, in Mexico City, Mexico May 7, 2021. REUTERS/Carlos Jasso

Commuters step off the metro train, one of the busiest metro systems in the world, in Mexico City, Mexico May 7, 2021. REUTERS/Carlos Jasso

Commuters wait for the metro train, one of the busiest metro systems in the world, in Mexico City, Mexico May 7, 2021. REUTERS/Carlos Jasso

Commuters wait for the metro train, one of the busiest metro systems in the world, in Mexico City, Mexico May 7, 2021. REUTERS/Carlos Jasso

Commuters travel inside a metro train on one of the busiest metro systems in the world, in Mexico City, Mexico May 6, 2021. REUTERS/Carlos Jasso

Commuters travel inside a metro train on one of the busiest metro systems in the world, in Mexico City, Mexico May 6, 2021. REUTERS/Carlos Jasso

Residents play soccer as commuters travel inside a metro train (top), one of the busiest metro systems in the world, in Mexico City, Mexico May 6, 2021. REUTERS/Carlos Jasso

Commuters wait for a metro train at one of the busiest metro systems in the world in Mexico City, Mexico May 6, 2021. REUTERS/Carlos Jasso

A commuter is seen on a bus, displaying a message for the 100th anniversary of the founding of the Communist Party of China, during the Labour Day holiday, following the outbreak of the coronavirus disease (COVID-19), in Shanghai, China May 5, 2021. REUTERS/Aly Song

Michael Oppenheimer, the Albert G. Milbank Professor of Geosciences and International Affairs in the Princeton School of Public and International Affairs (SPIA), talks with a fellow passenger while commuting to Princeton University, U.S., October 8, 2019. Picture taken October 8, 2019. To match Special Report CLIMATE-CHANGE/SCIENTISTS-OPPENHEIMER REUTERS/Lucas Jackson

Michael Oppenheimer, the Albert G. Milbank Professor of Geosciences and International Affairs in the Princeton School of Public and International Affairs (SPIA), talks with a friend at a train station while commuting to Princeton University, U.S., October 8, 2019. Picture taken October 8, 2019. To match Special Report CLIMATE-CHANGE/SCIENTISTS-OPPENHEIMER REUTERS/Lucas Jackson

Commuters walk trough ticket machines at Constitucion train station, amid a rise in cases of the coronavirus disease (COVID-19), in Buenos Aires, Argentina April 8, 2021. REUTERS/Agustin Marcarian

Commuters wait for the bus outside Constitucion train station, amid a rise in cases of the coronavirus disease (COVID-19), in Buenos Aires, Argentina April 8, 2021. REUTERS/Agustin Marcarian

Commuters wait for the bus outside Constitucion train station, amid a rise in cases of the coronavirus disease (COVID-19), in Buenos Aires, Argentina April 8, 2021. REUTERS/Agustin Marcarian

Commuters walk outside Constitucion train station, amid a rise in cases of the coronavirus disease (COVID-19), in Buenos Aires, Argentina April 8, 2021. REUTERS/Agustin Marcarian

Commuters walk outside Constitucion train station, amid a rise in cases of the coronavirus disease (COVID-19), in Buenos Aires, Argentina April 8, 2021. REUTERS/Agustin Marcarian

Commuters wearing protective face masks, amid the coronavirus disease (COVID-19) pandemic, make their way in Tokyo, Japan, April 6, 2021. Picture taken with slow shutter speed. REUTERS/Kim Kyung-Hoon

A man walks with an umbrella on a sunny day as commuters wear protective face masks amid the coronavirus disease (COVID-19) pandemic in Tokyo, Japan, April 6, 2021. REUTERS/Kim Kyung-Hoon

Commuters wearing protective face masks, amid the coronavirus disease (COVID-19) pandemic, make their way in Tokyo, Japan, April 6, 2021. Picture taken with slow shutter speed. REUTERS/Kim Kyung-Hoon

A commuter train crosses a bridge over river Main as the spread of the coronavirus disease (COVID-19) continues in Frankfurt, Germany, March 26, 2021. REUTERS/Kai Pfaffenbach

Commuters travel in an underground train during the morning rush hour, on the anniversary of Britain's first coronavirus disease (COVID-19) lockdown, in London, Britain, March 23, 2021. REUTERS/Toby Melville

A police officer checks a commuter arriving from Poland, at the German-Polish border crossing Stadtbruecke (city bridge) amid the coronavirus disease (COVID-19) outbreak, in Frankfurt (Oder), Germany, March 22, 2021. REUTERS/Hannibal Hanschke

Commuters arriving from Poland stand next to the German-Polish border crossing Stadtbruecke (city bridge) as they wait for coronavirus disease (COVID-19) tests, in Frankfurt (Oder), Germany, March 22, 2021. REUTERS/Hannibal Hanschke

Police officers check commuters in cars arriving from Poland, at the German-Polish border crossing Stadtbruecke (city bridge) amid the coronavirus disease (COVID-19) outbreak, in Frankfurt (Oder), Germany, March 22, 2021. REUTERS/Hannibal Hanschke

A police officer checks commuters in cars arriving from Poland, at the German-Polish border crossing Stadtbruecke (city bridge) amid the coronavirus disease (COVID-19) outbreak, in Frankfurt (Oder), Germany, March 22, 2021. REUTERS/Hannibal Hanschke

A police officer checks commuters in a car arriving from Poland, at the German-Polish border crossing Stadtbruecke (city bridge) amid the coronavirus disease (COVID-19) outbreak, in Frankfurt (Oder), Germany, March 22, 2021. REUTERS/Hannibal Hanschke

A police officer checks a commuter in a car arriving from Poland, at the German-Polish border crossing Stadtbruecke (city bridge) amid the coronavirus disease (COVID-19) outbreak, in Frankfurt (Oder), Germany, March 22, 2021. REUTERS/Hannibal Hanschke

A police officer checks commuters in cars arriving from Poland, at the German-Polish border crossing Stadtbruecke (city bridge) amid the coronavirus disease (COVID-19) outbreak, in Frankfurt (Oder), Germany, March 22, 2021. REUTERS/Hannibal Hanschke

Commuters arriving from Poland stand at the German-Polish border crossing Stadtbruecke (city bridge) as they wait for coronavirus disease (COVID-19) tests, in Frankfurt (Oder), Germany, March 22, 2021. REUTERS/Hannibal Hanschke

Commuters arriving from Poland stand next to the German-Polish border crossing Stadtbruecke (city bridge) as they wait for coronavirus disease (COVID-19) tests, in Frankfurt (Oder), Germany, March 22, 2021. REUTERS/Hannibal Hanschke

Commuters arriving from Poland stand next to the German-Polish border crossing Stadtbruecke (city bridge) as they wait for coronavirus disease (COVID-19) tests, in Frankfurt (Oder), Germany, March 22, 2021. REUTERS/Hannibal Hanschke

Commuters arriving from Poland stand next to the German-Polish border crossing Stadtbruecke (city bridge) as they wait for coronavirus disease (COVID-19) tests, in Frankfurt (Oder), Germany, March 22, 2021. REUTERS/Hannibal Hanschke

A healthcare worker takes swab from a woman as commuters arriving from Poland stand at the German-Polish border crossing Stadtbruecke (city bridge) as they wait for coronavirus disease (COVID-19) tests, in Frankfurt (Oder), Germany, March 22, 2021. REUTERS/Hannibal Hanschke

An informative sign regarding U.S. Immigration and Customs Enforcement (ICE) sign is seen as commuters line up to receive a coronavirus disease (COVID-19) vaccine outside a mass vaccination site supported by the federal government at the Miami Dade College North Campus in Miami, Florida, U.S., March 10, 2021. REUTERS/Marco Bello

A commuter at Rome's main train station Termini wears a mask, amid the coronavirus disease (COVID-19) outbreak, in Rome, Italy, February 22, 2021. REUTERS/Guglielmo Mangiapane

A commuter at Rome's main train station Termini wears a mask, amid the coronavirus disease (COVID-19) outbreak, in Rome, Italy, February 22, 2021. REUTERS/Guglielmo Mangiapane

Commuters at Rome's main train station Termini wear masks, amid the coronavirus disease (COVID-19) outbreak, in Rome, Italy, February 22, 2021. REUTERS/Guglielmo Mangiapane

A commuter at Rome's main train station Termini wears a mask, amid the coronavirus disease (COVID-19) outbreak, in Rome, Italy, February 22, 2021. REUTERS/Guglielmo Mangiapane

Commuters at Rome's main train station Termini wear masks, amid the coronavirus disease (COVID-19) outbreak, in Rome, Italy, February 22, 2021. REUTERS/Guglielmo Mangiapane

Commuters walk on a railway platform after disembarking from a train amidst the spread of the coronavirus disease (COVID-19) in Mumbai, India, February 9, 2021. REUTERS/Francis Mascarenhas

Passengers wear face masks as they wait for an S-Bahn commuter train on the platform at Friedrichstrasse station during lockdown amid the coronavirus disease (COVID-19) pandemic, in Berlin, Germany February 5, 2021. REUTERS/Fabrizio Bensch

A man wearing a protective mask gives a plastic bag containing his air-sample to be tested using GeNose C19 (GeNose), a coronavirus disease (COVID-19) detection tool, at a train station in Jakarta, Indonesia, February 3, 2021. REUTERS/Ajeng Dinar Ulfiana

A healthcare worker holds a plastic bag containing a commuter's air-sample to be tested for the coronavirus disease (COVID-19) using GeNose C19 (GeNose), a COVID-19 detection tool, at a train station in Jakarta, Indonesia, February 3, 2021. REUTERS/Ajeng Dinar Ulfiana

A woman wearing a protective mask blows a plastic bag as she takes her air-sample to be tested for the coronavirus disease (COVID-19) using GeNose C19 (GeNose), a COVID-19 detection tool, at a train station in Jakarta, Indonesia, February 3, 2021. REUTERS/Ajeng Dinar Ulfiana

Commuters wearing protective masks blow a plastic bag as they take their air-sample to be tested using GeNose C19 (GeNose), a coronavirus disease (COVID-19) detection tool, at a train station in Jakarta, Indonesia, February 3, 2021. REUTERS/Ajeng Dinar Ulfiana