Tourists walk past a thermal scanner at the jetty, as Langkawi reopens to domestic tourists, amid the coronavirus disease (COVID-19) pandemic, in Malaysia September 16, 2021. REUTERS/Lim Huey Teng TPX IMAGES OF THE DAY 

Tourists walk past a thermal scanner at the jetty, as Langkawi reopens to domestic tourists, amid the coronavirus disease (COVID-19) pandemic, in Malaysia September 16, 2021. REUTERS/Lim Huey Teng 

An elementary school student wearing a face mask and face shield is checked with a thermal scanner before entering a class, as schools reopen on trial basis after the government extended restrictions to curb the spread of coronavirus disease (COVID-19) in Jakarta, Indonesia, August 30, 2021. REUTERS/Ajeng Dinar Ulfiana 

A healthcare worker in personal protective equipment (PPE) checks a man's temperature with a thermal scanner before he receives a dose of the vaccine against the coronavirus disease (COVID-19) at a Mass Rapid Transit (MRT) station, as cases surge in Jakarta, Indonesia, July 23, 2021. REUTERS/Ajeng Dinar Ulfiana 

An Indonesian Muslim is checked with a thermal scanner before entering a mosque to offer Eid al-Adha prayers amid a surge of coronavirus disease (COVID-19) cases in Bogor, on the outskirts of Jakarta, Indonesia, July 20, 2021. REUTERS/Ajeng Dinar Ulfiana 

An Indonesian Muslim is checked with a thermal scanner before entering a mosque to offer Eid al-Adha prayers amid a surge of coronavirus disease (COVID-19) cases in Bogor, on the outskirts of Jakarta, Indonesia, July 20, 2021. REUTERS/Ajeng Dinar Ulfiana 

A healthcare worker in personal protective equipment (PPE) checks a woman's temperature with a thermal scanner before she receives a dose of the vaccine against the coronavirus disease (COVID-19), as cases surge in Jakarta, Indonesia, July 8, 2021. REUTERS/Ajeng Dinar Ulfiana 

A shopkeeper holds paper replicas of face masks, sanitiser, thermal scanner and goggles as offerings for Qingming tomb-sweeping festival, amid the coronavirus disease (COVID-19) outbreak in Kuala Lumpur, Malaysia March 16, 2021. REUTERS/Lim Huey Teng 

A voter wearing protective face mask is checked with thermal scanner at a polling booth during regional elections with the theme of a hospital amid the coronavirus disease (COVID-19) outbreak in Depok, on the outskirts of Jakarta, Indonesia, December 9, 2020. REUTERS/Ajeng Dinar Ulfiana 

An officer wearing protective face masks is checked with thermal scanner at a polling booth during regional elections with the theme of a hospital amid the coronavirus disease (COVID-19) outbreak in Depok, on the outskirts of Jakarta, Indonesia, December 9, 2020. REUTERS/Ajeng Dinar Ulfiana 

Worker pastes a sign on a thermal scanner at an arrivals area after Adani Group took over the operations of Sardar Vallabhbhai Patel International Airport in Ahmedabad, India, November 7, 2020. REUTERS/Amit Dave 

Man is checked with a thermal scanner before entering the CGV cinema amid the coronavirus disease (COVID-19) pandemic in Jakarta, Indonesia, October 21, 2020. REUTERS/Ajeng Dinar Ulfiana 

A man wearing a protective face mask is checked with a thermal scanner at a shopping mall amid the coronavirus disease (COVID-19) outbreak in Jakarta, Indonesia, September 22, 2020. REUTERS/Ajeng Dinar Ulfiana 

An employee wearing protective face masks uses a thermal scanner to check a temperature of a woman at the entrance of movie theater "Cinemex" during the gradual reopening of commercial activities after the city government eased isolation measures implemented to prevent the spread of the coronavirus disease ( COVID-19) in Mexico City, Mexico August 12, 2020. REUTERS/Henry Romero 

A security guard uses a thermal scanner in front of HSBC's logo, following the coronavirus disease (COVID-19) outbreak in Hong Kong, China August 4, 2020. REUTERS/Tyrone Siu 

People are seen through the screen of a thermal scanner during the 41st Bangkok International Motor Show, after the Thai government eased measures to prevent the spread of the coronavirus disease (COVID-19), in Bangkok, Thailand, July 15, 2020. REUTERS/Jorge Silva 

People are seen through the screen of a thermal scanner during the 41st Bangkok International Motor Show, after the Thai government eased measures to prevent the spread of the coronavirus disease (COVID-19), in Bangkok, Thailand, July 15, 2020. REUTERS/Jorge Silva 

People are seen through the screen of a thermal scanner during the 41st Bangkok International Motor Show, after the Thai government eased measures to prevent the spread of the coronavirus disease (COVID-19), in Bangkok, Thailand, July 15, 2020. REUTERS/Jorge Silva 

A security staff uses a thermal scanner to check a temperature of a member of the contact-tracing team, at the Primary Healthcare Centre, amid the spread of the coronavirus disease (COVID-19) in Lagos, Nigeria May 7, 2020. Picture taken May 7, 2020. REUTERS/Temilade Adelaja 

A security staff uses a thermal scanner to check a temperature of a member of the contact-tracing team at the Primary Healthcare Centre, amid the spread of the coronavirus disease (COVID-19) in Lagos, Nigeria May 7, 2020. Picture taken May 7, 2020. REUTERS/Temilade Adelaja 

A cinema patron wearing a protective mask is checked with a thermal scanner by a security officer at Savoy cinema, amid concerns about the spread of the coronavirus disease (COVID-19), in Colombo, Sri Lanka, July 11, 2020. REUTERS/Dinuka Liyanawatte 

A delivery staff member wearing a protective mask is checked with a thermal scanner at the main entrance of a KFC fast food outlet, amid concerns about the spread of the coronavirus disease (COVID-19), in Colombo, Sri Lanka, July 9, 2020. REUTERS/Dinuka Liyanawatte 

A delivery staff member wearing a protective mask is checked with a thermal scanner at the main entrance of a KFC fast food outlet, amid concerns about the spread of the coronavirus disease (COVID-19), in Colombo, Sri Lanka, July 9, 2020. REUTERS/Dinuka Liyanawatte 

An employee checks the temperature of a woman with a thermal scanner as they wait for the Barcelo hotel to reopen, during the start of gradual reopening of commercial activities in the city, as the coronavirus disease (COVID-19) outbreak continues, in Mexico City, Mexico June 30, 2020. REUTERS/Henry Romero 

A customer is wearing protective mask checked with a thermal scanner by a security person at the main entrance of a Keels super market, amid concerns about the spread of the coronavirus disease (COVID-19), in Colombo, Sri Lanka, June 17, 2020. Picture taken June 17, 2020. REUTERS/Dinuka Liyanawatte 

Bottles of disinfectants and a thermal scanner are placed before the entrance of a restaurant as the Philippine government allows dining-in following months of restrictions due to the coronavirus disease (COVID-19) outbreak, in Mandaluyong City, Metro Manila, Philippines, June 16, 2020. REUTERS/Eloisa Lopez 

An employee checks the temperatures of passengers with a thermal scanner at a subway station after the city government lifted restrictions on car traffic and public transport along with factory works, to resume under strict sanitary protections, as the coronavirus disease (COVID-19) outbreak continues in Mexico City, Mexico June 15, 2020. REUTERS/Henry Romero 

A security guard uses a thermal scanner to check a woman's temperature as she enters the Tejuoso shopping complex at the Yaba market, amid the coronavirus disease (COVID-19) outbreak, in Lagos, Nigeria March 23, 2020. Picture taken March 23, 2020. REUTERS/Temilade Adelaja 

Indonesian Muslims are checked with a thermal scanner before taking part in Friday prayers amid the spread of the coronavirus disease (COVID-19) outbreak in Jakarta, Indonesia, June 5, 2020. REUTERS/Ajeng Dinar Ulfiana 

A Fiumicino Airport's employee wearing a protective face mask uses a "smart helmet" thermal scanner to check the temperature of passengers at Fiumicino Airport, as Italy eases movement between regions, while the country unwinds its rigid lockdown due to the coronavirus disease (COVID-19) outbreak, in Rome, Italy June 3, 2020. REUTERS/Yara Nardi 

A visitor walks next to a thermal scanner at the entrance of Rome's ancient Colosseum as it reopens with social distancing and hygiene measures in place, after months of closure due to the spread of the coronavirus disease (COVID-19), in Rome, Italy June 1, 2020. REUTERS/Yara Nardi 

A visitor checks his temperature with a thermal scanner at the entrance of Rome's ancient Colosseum as it is being reopened with social distancing and hygiene measures in place, after months of closure due to the spread of the coronavirus disease (COVID-19), in Rome, Italy June 1, 2020. REUTERS/Yara Nardi 

A visitor checks her temperature with a thermal scanner at the entrance of Rome's ancient Colosseum as it is being reopened with social distancing and hygiene measures in place, after months of closure due to the spread of the coronavirus disease (COVID-19), in Rome, Italy June 1, 2020. REUTERS/Yara Nardi 

The screen of a tablet connected to a thermal scanner that detects the temperatures of passengers at the security check is seen at Fiumicino Airport, where new security measures have been implemented ahead of a further loosening of movement restrictions on June 3, when Italy is due to reopen its borders to travellers from Europe to unwind its rigid lockdown due to the coronavirus disease (COVID-19), in Rome, Italy, May 28, 2020. REUTERS/Guglielmo Mangiapane 

The screen of a tablet connected to a thermal scanner that detects the temperatures of passengers at the security check is seen at Fiumicino Airport, where new security measures have been implemented ahead of a further loosening of movement restrictions on June 3, when Italy is due to reopen its borders to travellers from Europe to unwind its rigid lockdown due to the coronavirus disease (COVID-19), in Rome, Italy, May 28, 2020. REUTERS/Guglielmo Mangiapane 

An employee with a thermal scanner that detects the temperatures of people waits in the stairwell of a building, as the city allowed some businesses to reopen on Wednesday following a fall in daily deaths due to the outbreak of the coronavirus disease (COVID-19), in Guayaquil, Ecuador May 20, 2020. REUTERS/Vicente Gaibor del Pino 

An employee with a thermal scanner checks the temperature of a man before he enters into a building, as the city allowed some businesses to reopen on Wednesday following a fall in daily deaths due to the outbreak of the coronavirus disease (COVID-19), in Guayaquil, Ecuador May 20, 2020. REUTERS/Vicente Gaibor del Pino 

Children wearing a protective face mask are checked with thermal scanner before getting free food amid the coronavirus disease (COVID-19) outbreak in Jakarta, Indonesia, May 14, 2020. REUTERS/Ajeng Dinar Ulfiana 

A woman wearing a protective mask walks past the monitor of a thermal scanner at the Cadorna railway station, as Italy begins a staged end to a nationwide lockdown due to the spread of the coronavirus disease (COVID-19), in Milan, Italy May 4, 2020. REUTERS/Flavio Lo Scalzo 

People who couldn't return to their hometowns due to a lockdown amidst concerns about the spread of the coronavirus disease (COVID-19), are checked with a thermal scanner by a health officer before they travel to their villages using special transport organised by the government, at a public ground in Colombo, Sri Lanka, May 2, 2020. REUTERS/Dinuka Liyanawatte 

Medical staff wear protective suits while checking the homeless with a thermal scanner after authorities prepared the sports halls for homeless people to prevent the spread of the coronavirus disease (COVID-19) in Jakarta, Indonesia, April 29, 2020. REUTERS/Ajeng Dinar Ulfiana 

A medical staff wears a protective suit while checking the homeless with a thermal scanner after authorities prepared the sports halls for homeless people to prevent the spread of the coronavirus disease (COVID-19) in Jakarta, Indonesia, April 29, 2020. REUTERS/Ajeng Dinar Ulfiana 

A camera of a thermal imaging system is seen inside a public hospital to measure temperature and identify people potentially infected with the coronavirus disease (COVID-19) in Valparaiso, Chile April 23, 2020. REUTERS/Rodrigo Garrido 

A camera of a thermal imaging system is seen inside a public hospital to measure temperature and identify people potentially infected with the coronavirus disease (COVID-19) in Valparaiso, Chile April 23, 2020. REUTERS/Rodrigo Garrido 

A medical worker uses a thermal scanner to measure the temperature of a person in front of the observation room at the ER of the Clinical Center of Serbia as the spread of the coronavirus disease (COVID-19) continues in Belgrade, Serbia, April 23, 2020. REUTERS/Marko Djurica 

A man checks body temperature with a thermal scanner of the citizens of US who arrive at the Hazrat Shahjalal International Airport to leave Bangladesh on a special flight amid the coronavirus disease (COVID-19) outbreak in Dhaka, Bangladesh, April 21, 2020. REUTERS/Mohammad Ponir Hossain 

Homeless people are checked with a thermal scanner by a health officer before sending them to a quarantine center during the curfew amid concerns about the spread of coronavirus disease (COVID-19), in Colombo, Sri Lanka, April 17, 2020. REUTERS/Dinuka Liyanawatte 

A security personnel checks the body temperature of customers with a thermal scanner at the entrance to a bank amid the coronavirus disease (COVID-19) outbreak in Dhaka, Bangladesh, April 2, 2020. REUTERS/Mohammad Ponir Hossain 

The screen of a thermal scanner that detects the temperatures of passengers at the security check inside a subway station is seen, as the coronavirus disease (COVID-19) outbreak continues in Mexico City, Mexico, March 27, 2020. REUTERS/Henry Romero 

The screen of a thermal scanner that detects the temperatures of passengers at the security check inside a subway station is seen, as the coronavirus disease (COVID-19) outbreak continues in Mexico City, Mexico, March 26, 2020. REUTERS/Henry Romero 

The screen of a thermal scanner that detects the temperatures of passengers at the security check inside a subway station is seen, as the coronavirus disease (COVID-19) outbreak continues in Mexico City, Mexico, March 26, 2020. REUTERS/Henry Romero 

The screen of a thermal scanner that detects the temperatures of passengers at the security check inside a subway station is seen, as the coronavirus disease (COVID-19) outbreak continues in Mexico City, Mexico, March 26, 2020. REUTERS/Henry Romero 

The screen of a thermal scanner that detects the temperatures of passengers at the security check inside a subway station is seen, as the coronavirus disease (COVID-19) outbreak continues in Mexico City, Mexico, March 26, 2020. REUTERS/Henry Romero 

An Ecuadorian health official uses a thermal scanner on car passengers at Rumichaca International Bridge between Colombia and Ecuador, after Ecuador's government closed its borders to all foreign travelers due to the spread of the coronavirus disease (COVID-19), in Tulcan, Ecuador, March 16, 2020. REUTERS/Daniel Tapia 

A Colombian health officer wears a protective face mask as she checks a passenger with a thermal scanner while crossing the border between Colombia and Ecuador after Ecuador's government on Saturday announced the closure of its borders from Sunday to all foreign travelers due to the spread of the coronavirus, picture taken from the side of Ipiales, Colombia, March 15, 2020. REUTERS/Daniel Tapia 

A Colombian health officer wears a protective face mask as she checks a child with a thermal scanner while across the border between Colombia and Ecuador after Ecuador's government on Saturday announced the closure of its borders from Sunday to all foreign travelers due to the spread of the coronavirus, picture taken from the side of Ipiales, Colombia, March 15, 2020. REUTERS/Daniel Tapia 

A Colombian health officer wears a protective face mask as she checks a driver with a thermal scanner while crossing the border between Colombia and Ecuador after Ecuador's government on Saturday announced the closure of its borders from Sunday to all foreign travelers due to the spread of the coronavirus, picture taken from the side of Ipiales, Colombia, March 15, 2020. REUTERS/Daniel Tapia 

A woman's body temperature is checked with a thermal scanner through the window of a jeepney at a checkpoint placed amidst the lockdown of the country's capital to contain the spread of coronavirus, in the outskirts of Quezon City, Metro Manila, Philippines, March 15, 2020. REUTERS/Eloisa Lopez 

A health worker uses a thermal scanner to check a woman's temperature at a checkpoint placed amidst the lockdown of the country's capital to contain the spread of coronavirus, in the outskirts of Quezon City, Metro Manila, Philippines, March 15, 2020. REUTERS/Eloisa Lopez 

A health worker uses a thermal scanner to check a man's temperature at a checkpoint placed amidst the lockdown of the country's capital to contain the spread of coronavirus, in the outskirts of Quezon City, Metro Manila, Philippines, March 15, 2020. REUTERS/Eloisa Lopez