Guatemalan Foreign Minister Pedro Brolo and Israel Ambassador to Guatemala Mattanya Cohen attend a ceremony after the arrival of a batch of the Moderna coronavirus disease (COVID-19) vaccines at the Guatemalan Air Force base in Guatemala City, Guatemala February 25, 2021. REUTERS/Luis Echeverria

Workers unload a batch of the Moderna coronavirus disease (COVID-19) vaccines, upon its arrival at the Guatemalan Air Force base in Guatemala City, Guatemala February 25, 2021. REUTERS/Luis Echeverria

Workers unload a batch of the Moderna coronavirus disease (COVID-19) vaccines, upon its arrival at the Guatemalan Air Force base in Guatemala City, Guatemala February 25, 2021. REUTERS/Luis Echeverria

Workers unload a batch of the Moderna coronavirus disease (COVID-19) vaccines, upon its arrival at the Guatemalan Air Force base in Guatemala City, Guatemala February 25, 2021. REUTERS/Luis Echeverria

A worker unloads a batch of the Moderna coronavirus disease (COVID-19) vaccines, upon its arrival at the Guatemalan Air Force base in Guatemala City, Guatemala February 25, 2021. REUTERS/Luis Echeverria

A worker unloads a batch of the Moderna coronavirus disease (COVID-19) vaccines, upon its arrival at the Guatemalan Air Force base in Guatemala City, Guatemala February 25, 2021. REUTERS/Luis Echeverria

A man looks at his phone at a quarantine hotel, as part of Canada's new measures against the coronavirus disease (COVID-19), which require a short stay at a government approved hotel near Toronto Pearson International Airport in Mississauga, Ontario, Canada February 24, 2021. REUTERS/Carlos Osorio

A person looks out of a window at a quarantine hotel, as part of Canada's new measures against the coronavirus disease (COVID-19), which require a short stay at a government approved hotel near Toronto Pearson International Airport in Mississauga, Ontario, Canada February 24, 2021. REUTERS/Carlos Osorio

A man looks at his phone at a quarantine hotel, as part of Canada's new measures against the coronavirus disease (COVID-19), which require a short stay at a government approved hotel near Toronto Pearson International Airport in Mississauga, Ontario, Canada February 24, 2021. REUTERS/Carlos Osorio

A hotel, which is part of the government approved hotels for a short stay for international arriving passengers as part of Canada's new measures against the coronavirus disease (COVID-19), is seen near Toronto Pearson International Airport in Mississauga, Ontario, Canada February 24, 2021. REUTERS/Carlos Osorio TPX IMAGES OF THE DAY

Travellers from an international flight line up to board a shuttle which will take them to a quarantine hotel, as part of Canada's new measures against the coronavirus disease (COVID-19), at Toronto Pearson International Airport in Mississauga, Ontario, Canada February 24, 2021. REUTERS/Carlos Osorio

Chander Gawri shows the at-home COVID-19 test given to all international arrivals before he boards a shuttle which will take him to a quarantine hotel, as part of Canada's new measures against the coronavirus disease (COVID-19), at Toronto Pearson International Airport in Mississauga, Ontario, Canada February 24, 2021. REUTERS/Carlos Osorio

A healthcare worker shows one of the at-home COVID-19 tests given to passengers arriving in Canada, as part of the country's new measures against the coronavirus disease (COVID-19), at Toronto Pearson International Airport in Mississauga, Ontario, Canada February 24, 2021. REUTERS/Carlos Osorio

A passenger arriving in Canada receives an at-home COVID-19 test as part of Canada's new measures against the coronavirus disease (COVID-19, at Toronto Pearson International Airport in Mississauga, Ontario, Canada February 24, 2021. REUTERS/Carlos Osorio

COVID-19 at-home tests sit on a table to be given to passengers arriving in Canada, as part of the country's new measures against the coronavirus disease (COVID-19), at Toronto Pearson International Airport in Mississauga, Ontario, Canada February 24, 2021. REUTERS/Carlos Osorio

Travellers from an international flight are directed to the COVID-19 testing area as part of Canada's new measures against the coronavirus disease (COVID-19), at Toronto Pearson International Airport in Mississauga, Ontario, Canada February 24, 2021. REUTERS/Carlos Osorio

Mexico's Air Force planes fly in formation during the National Flag Day event in Iguala, Guerrero State, Mexico February 24, 2021. REUTERS/Henry Romero

A technician works at aerospace spare parts production in SERMP, a Casablanca-based company that supplies parts to French aircraft engine maker Safran, in Casablanca, Morocco February 23, 2021. Picture taken February 23, 2021. REUTERS/Abdelhak Balhaki

A technician works inside SERMP, a Casablanca-based company that supplies parts to French aircraft engine maker Safran, in Casablanca, Morocco February 23, 2021. Picture taken February 23, 2021. REUTERS/Abdelhak Balhaki

A view shows Moroccan respirator machines at a Laboratory in SERMP, a Casablanca-based company that supplies parts to French aircraft engine maker Safran, in Casablanca, Morocco February 23, 2021. Picture taken February 23, 2021. REUTERS/Abdelhak Balhaki

A technician works on a medical respirator in SERMP, a Casablanca-based company that supplies parts to French aircraft engine maker Safran, in Casablanca, Morocco February 23, 2021. Picture taken February 23, 2021. REUTERS/Abdelhak Balhaki

A laboratory technician looks through a microscope at CETIM Maroc company in Casablanca, Morocco February 23, 2021. Picture taken February 23, 2021. REUTERS/Abdelhak Balhaki

Technicians work at CETIM Maroc company in Casablanca, Morocco February 23, 2021. Picture taken February 23, 2021. REUTERS/Abdelhak Balhaki

Badre Jaafar, director of SERMP, a Casablanca-based company that supplies parts to French aircraft engine maker Safran, shows a face masks-making machine to Karim Cheikh, head of Morocco's aerospace suppliers association, in Casablanca, Morocco February 23, 2021. Picture taken February 23, 2021. REUTERS/Abdelhak Balhaki

A plane engine is pictured at the IMA aeronautics institute in Casablanca, Morocco February 23, 2021. Picture taken February 23, 2021. REUTERS/Abdelhak Balhaki

A technician works on a medical respirator in SERMP, a Casablanca-based company that supplies parts to French aircraft engine maker Safran, in Casablanca, Morocco February 23, 2021. Picture taken February 23, 2021. REUTERS/Abdelhak Balhaki

A van carrying the bodies of the Italian ambassador to Democratic Republic of Congo Luca Attanasio and his Italian security Vittorio Iacovacci, who were both killed in an attempted kidnapping when their convoy was attacked in Ruhimba village, is seen at the Goma International Airport, in Goma, Democratic Republic of the Congo February 23, 2021. REUTERS/Hereward Holland

Officials load the bodies of the Italian ambassador to Democratic Republic of Congo Luca Attanasio and his Italian security Vittorio Iacovacci, who were both killed in an attempted kidnapping when their convoy was attacked in Ruhimba village, into a military plane at the Goma International Airport, in Goma, Democratic Republic of the Congo February 23, 2021. REUTERS/Hereward Holland

Italian Catholic priest Franco Bordignon watches as a military plane carrying the bodies of Italian ambassador to Democratic Republic of Congo Luca Attanasio and his Italian security Vittorio Iacovacci, who were both killed in an attempted kidnapping when their convoy was attacked in Ruhimba village, takes off from the Goma International Airport, in Goma, Democratic Republic of the Congo February 23, 2021. REUTERS/Hereward Holland

Officials load the bodies of the slain Italian ambassador to Democratic Republic of Congo Luca Attanasio and his Italian security Vittorio Iacovacci, who were both killed in an attempted kidnapping when their convoy was attacked in Ruhimba village, into a military plane at the Goma International Airport, in Goma, Democratic Republic of the Congo February 23, 2021. REUTERS/Hereward Holland

Officials load the bodies of the slain Italian ambassador to Democratic Republic of Congo Luca Attanasio and his Italian security Vittorio Iacovacci, who were both killed in an attempted kidnapping when their convoy was attacked in Ruhimba village, into a military plane at the Goma International Airport, in Goma, Democratic Republic of the Congo February 23, 2021. REUTERS/Hereward Holland

Officials load the bodies of the slain Italian ambassador to Democratic Republic of Congo Luca Attanasio and his Italian security Vittorio Iacovacci, who were both killed in an attempted kidnapping when their convoy was attacked in Ruhimba village, into a military plane at the Goma International Airport, in Goma, Democratic Republic of the Congo February 23, 2021. REUTERS/Hereward Holland TPX IMAGES OF THE DAY

Officials prepare to load the bodies the slain Italian ambassador to Democratic Republic of Congo Luca Attanasio and his Italian security Vittorio Iacovacci, who were both killed in an attempted kidnap when their convoy was attacked in Ruhimba village, into a military plane at the Goma airport in eastern Democratic Republic of the Congo February 23, 2021. REUTERS/Hereward Holland

Officials prepare to load the bodies of the slain Italian ambassador to Democratic Republic of Congo Luca Attanasio and his Italian security Vittorio Iacovacci, who were both killed in an attempted kidnapping when their convoy was attacked in Ruhimba village, into a military plane at the Goma International Airport, in Goma, Democratic Republic of the Congo February 23, 2021. REUTERS/Hereward Holland

An Italian military plane carrying the bodies of the slain Italian ambassador to Democratic Republic of Congo Luca Attanasio and his Italian security Vittorio Iacovacci, who were both killed in an attempted kidnapping when their convoy was attacked in Ruhimba village, is seen at the Goma International Airport, in Goma, Democratic Republic of the Congo February 23, 2021. REUTERS/Hereward Holland

A healthcare worker administers a dose of the Oxford-AstraZeneca coronavirus disease (COVID-19) vaccine, marketed by the Serum Institute of India (SII) as COVISHIELD, to an elderly man, at a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

A healthcare worker administers a dose of the Oxford-AstraZeneca coronavirus disease (COVID-19) vaccine, marketed by the Serum Institute of India (SII) as COVISHIELD, to an elderly woman, at a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

A healthcare worker administers a dose of the Oxford-AstraZeneca coronavirus disease (COVID-19) vaccine, marketed by the Serum Institute of India (SII) as COVISHIELD, to an elderly woman, at a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

A healthcare worker administers a dose of the Oxford-AstraZeneca coronavirus disease (COVID-19) vaccine, marketed by the Serum Institute of India (SII) as COVISHIELD, to Esther Resmik, 81, at a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

A healthcare worker prepares a dose of the Oxford-AstraZeneca coronavirus disease (COVID-19) vaccine, marketed by the Serum Institute of India (SII) as COVISHIELD, at a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

A healthcare worker administers a dose of the Oxford-AstraZeneca coronavirus disease (COVID-19) vaccine, marketed by the Serum Institute of India (SII) as COVISHIELD, to an elderly woman, at a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

A healthcare worker administers a dose of the Oxford-AstraZeneca coronavirus disease (COVID-19) vaccine, marketed by the Serum Institute of India (SII) as COVISHIELD, to an elderly woman, at a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

An elderly woman is accompanied by a familiar into a coronavirus disease (COVID-19) vaccination center, in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

A healthcare worker administers a dose of the Oxford-AstraZeneca coronavirus disease (COVID-19)vaccine, marketed by the Serum Institute of India (SII) as COVISHIELD, to an elderly woman, at a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

A healthcare worker administers a dose of the Oxford-AstraZeneca coronavirus disease (COVID-19)vaccine, marketed by the Serum Institute of India (SII) as COVISHIELD, to an elderly man, at a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

A healthcare worker administers a dose of the Oxford-AstraZeneca coronavirus disease (COVID-19) vaccine, marketed by the Serum Institute of India (SII) as COVISHIELD, to a woman, at a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

Healthcare workers wait to administer to elders doses of the Oxford-AstraZeneca coronavirus disease (COVID-19) vaccine, marketed by the Serum Institute of India (SII) as COVISHIELD, at a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

Elders wait to get a dose of the Oxford-AstraZeneca coronavirus disease (COVID-19) vaccine, marketed by the Serum Institute of India (SII) as COVISHIELD, at a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

David Cohen, 82, and Maria Miculisky, 83, are pictured after receiving a dose of the Oxford-AstraZeneca coronavirus disease (COVID-19) vaccine, marketed by the Serum Institute of India (SII) as COVISHIELD, at a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

A general view of a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

Elders are seen after being vaccinated with a dose of the Oxford-AstraZeneca coronavirus disease (COVID-19) vaccine, marketed by the Serum Institute of India (SII) as COVISHIELD, at a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

A healthcare worker administers a dose of the Oxford-AstraZeneca coronavirus disease (COVID-19) vaccine, marketed by the Serum Institute of India (SII) as COVISHIELD to Rodolfo Mayer, 82, at a vaccination center in Buenos Aires, Argentina February 22, 2021. REUTERS/Agustin Marcarian

Israeli Ministry of Defence's exhibit appears unstaffed after delegates cancelled their participation due to the coronavirus disease (COVID-19), at the International Defence Exhibition, Abu Dhabi, United Arab Emirates February 22, 2021. REUTERS/Khushnum Bhandari

Israeli Ministry of Defence's exhibit appears unstaffed after delegates cancelled their participation due to the coronavirus disease (COVID-19), at the International Defence Exhibition, Abu Dhabi, United Arab Emirates February 22, 2021. REUTERS/Khushnum Bhandari

Cingulate exhibit is seen at the International Defence Exhibition, Abu Dhabi, United Arab Emirates February 22, 2021. REUTERS/Khushnum Bhandari

People are seen at the EDGE exhibit in the International Defence Exhibition, Abu Dhabi, United Arab Emirates February 22, 2021. REUTERS/Abdel Hadi Ramahi

Faisal Al Bannai, EDGE chief Executive is seen during an interview with Reuters in the International Defence Exhibition, Abu Dhabi, United Arab Emirates February 22, 2021. REUTERS/Khushnum Bhandari

Model planes of Lockheed Martin are seen in the International Defence Exhibition, Abu Dhabi, United Arab Emirates February 22, 2021. REUTERS/Khushnum Bhandari

A meeting room outfitted with air-tight glass panels to reduce the risk of transmission, is pictured at the short-stay facility Connect@Changi, a complex of hotel rooms and meeting halls near the airport which will welcome business "bubble" travellers from March, as part of the city-state's effort to resume international meetings and conferences amid the coronavirus disease (COVID-19) outbreak, in Singapore February 22, 2021. REUTERS/Edgar Su

Members of the military sit in a helicopter at the Naval Defence & Maritime Security Exhibition in Abu Dhabi, United Arab Emirates February 22, 2021. REUTERS/Khushnum Bhandari