Brazil's Health Minister Eduardo Pazuello speaks during the arrival ceremony of the doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India, at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

A member of the Azul airline crew kisses "Ze Gotinha", the mascot of SUS (Unique Health System), after the arrival ceremony of the doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India, at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Members of the Federal Police guard containers with doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India, at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

A member of the Federal Police guards containers with doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India, at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Tennis - Tennis players undergo quarantine ahead of Australian Open - Adelaide, Australia - January 23, 2021 Food is being delivered to the M Suites accommodation in North Adelaide, where tennis players are undergoing mandatory quarantine ahead of the Australian Open. REUTERS/Morgan Sette

Police officers are seen next to a container with doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India, at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Tennis - Tennis players undergo quarantine ahead of Australian Open - Adelaide, Australia - January 23, 2021 Rafael Nadal among support staff is seen in a bus returning from training to the M Suites accommodation in North Adelaide, where tennis players are undergoing mandatory quarantine ahead of the Australian Open. REUTERS/Morgan Sette

Border wall under construction is seen abandoned after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

A man gets a nucleic acid test at a makeshift testing site in a park following an outbreak of the coronavirus disease (COVID-19) in Beijing, China January 23, 2021. REUTERS/Thomas Peter

A man gets a nucleic acid test at a makeshift testing site in a park following an outbreak of the coronavirus disease (COVID-19) in Beijing, China January 23, 2021. REUTERS/Thomas Peter

A border wall construction site is seen mostly abandoned after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

A border wall construction site is seen mostly abandoned after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

Border wall under construction is seen abandoned after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

A border wall construction site is seen mostly abandoned after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

A construction site is pictured mostly abandoned on the border wall after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

New section of the border wall is pictured next to an older piece of fencing after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

New section of the border wall is pictured next to an older piece of fencing after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

New section of the border wall is pictured next to an older piece of fencing after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

Newly completed section of the border wall is pictured next to an older piece of fencing after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

Steel pipes for the border wall are pictured in a mostly abandoned construction site after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

A border wall construction site is seen mostly abandoned after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

A construction site is pictured mostly abandoned on the border wall after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

A construction site is pictured mostly abandoned on the border wall after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

A U.S. Border Patrol vehicle is parked next to the border wall after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

A worker hauls away work lights at a construction site which is mostly abandoned after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

A tractor makes its way along older border fencing after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

The U.S.-Mexico border wall is pictured after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

A border wall construction site is seen mostly abandoned after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

Border wall under construction is seen abandoned after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

Border wall under construction is seen abandoned after U.S. President Joe Biden signed an executive order halting construction of the U.S.-Mexico border wall, in Sunland Park, New Mexico U.S., January 22, 2021. REUTERS/Paul Ratje

Tennis - Tennis players undergo quarantine ahead of Australian Open - Adelaide, Australia - January 23, 2021 Serena Williams is seen in a bus returning from training to the M Suites accommodation in North Adelaide, where tennis players are undergoing mandatory quarantine ahead of the Australian Open. REUTERS/Morgan Sette

Oswaldo Cruz Foundation (Fiocruz) president Nisia Trindade, Brazil's Health Minister Eduardo Pazuello, Foreign Minister Ernesto Araujo walk next to a container with doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India, at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Tennis - Tennis players undergo quarantine ahead of Australian Open - Adelaide, Australia - January 23, 2021 Dominic Thiem is seen in a bus on his way to training from the M Suites accommodation in North Adelaide, where tennis players are undergoing mandatory quarantine ahead of the Australian Open. REUTERS/Morgan Sette

Oswaldo Cruz Foundation (Fiocruz) president Nisia Trindade speaks during the arrival ceremony of the doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India, at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Oswaldo Cruz Foundation (Fiocruz) president Nisia Trindade, "Ze Gotinha", the mascot of SUS (Unique Health System) and Brazil's Health Minister Eduardo Pazuello, pose next to a container with doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India, at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Brazil's Health Minister Eduardo Pazuello speaks during the arrival ceremony of the doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India, at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Brazil's Health Minister Eduardo Pazuello speaks during the arrival ceremony of the doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India, at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India are unloaded at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India are unloaded at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Workers unload two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India, at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Oswaldo Cruz Foundation (Fiocruz) president Nisia Trindade, Brazil's Health Minister Eduardo Pazuello, Foreign Minister Ernesto Araujo, and India's ambassador Suresh Reddy pose for a picture next to the two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India, at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

New graves are seen at the Xico cemetery, as the coronavirus disease (COVID-19) outbreak continues, in Valle de Chalco, in the State of Mexico, Mexico January 22, 2021. Picture taken from a drone REUTERS/Carlos Jasso

Graves are seen at the Xico cemetery, as the coronavirus disease (COVID-19) outbreak continues, in Valle de Chalco, in the State of Mexico, Mexico January 22, 2021. Picture taken from a drone REUTERS/Carlos Jasso

Workers unload two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India, at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India are unloaded at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Graves are seen at the Xico cemetery, as the coronavirus disease (COVID-19) outbreak continues, in Valle de Chalco, in the State of Mexico, Mexico January 22, 2021. Picture taken from a drone REUTERS/Carlos Jasso

Graves are seen at the Xico cemetery, as the coronavirus disease (COVID-19) outbreak continues, in Valle de Chalco, in the State of Mexico, Mexico January 22, 2021. Picture taken from a drone REUTERS/Carlos Jasso

"Ze Gotinha", the mascot of SUS (Unique Health System), is pictured as two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India arrive at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

The airplane carrying two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India lands at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

The airplane carrying two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India lands at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

The airplane carrying two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India lands at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

The airplane carrying two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India lands at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Brazil's Health Minister Eduardo Pazuello is pictured inside an airplane as two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India are about to arrive at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Brazil's Health Minister Eduardo Pazuello is pictured inside an airplane as two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India are about to arrive at Galeao Air Base in Rio de Janeiro, Brazil January 22, 2021. REUTERS/Ricardo Moraes

Workers load the AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India onto a plane bound to Rio de Janeiro at Sao Paulo International Airport in Guarulhos, Brazil January 22, 2021. REUTERS/Amanda Perobelli

Brazil's Health Minister Eduardo Pazuello is seen next to a container with doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India, at Sao Paulo International Airport in Guarulhos, Brazil January 22, 2021. REUTERS/Amanda Perobelli

Brazil's Health Minister Eduardo Pazuello attends a ceremony where two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India are being transported to Rio de Janeiro at Sao Paulo International Airport in Guarulhos, Brazil January 22, 2021. REUTERS/Amanda Perobelli

Brazil's Health Minister Eduardo Pazuello adjusts the microphone as he talks to the media during a ceremony where two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India are being transported to Rio de Janeiro at Sao Paulo International Airport in Guarulhos, Brazil January 22, 2021. REUTERS/Amanda Perobelli

Foreign Minister Ernesto Araujo talks to the media during a ceremony where two million doses of AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India are being transported to Rio de Janeiro at Sao Paulo International Airport in Guarulhos, Brazil January 22, 2021. REUTERS/Amanda Perobelli

Workers load the AstraZeneca/Oxford vaccines against the coronavirus disease (COVID-19) from India onto a plane bound to Rio de Janeiro at Sao Paulo International Airport in Guarulhos, Brazil January 22, 2021. REUTERS/Amanda Perobelli