An inmate walks along a corridor of the Apodaca prison in the municipality of Apodaca, on the outskirts of Monterrey, Mexico November 20, 2020. REUTERS/Daniel Becerril

An inmate walks along a corridor of the Apodaca prison in the municipality of Apodaca, on the outskirts of Monterrey, Mexico November 20, 2020. REUTERS/Daniel Becerril

Inmates walk along corridors of the Apodaca prison in the municipality of Apodaca, on the outskirts of Monterrey, Mexico November 20, 2020. REUTERS/Daniel Becerril

Doctor Anna Dalmau, 29, poses in the corridor of an outpatient center, after Catalonia's government imposed new restrictions in an effort to control the spread of the coronavirus disease (COVID-19), in Barcelona, Spain, November 17, 2020. Picture taken November 17, 2020. REUTERS/Nacho Doce

Secondary school student Jackline Bosibori, 17, who is pregnant, walks through the corridors of Kenyatta National Hospital after giving birth in Nairobi, Kenya, November 10, 2020. REUTERS/Monicah Mwangi SEARCH "KENYA LOCKDOWN PREGNANCIES" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

A nurse walks at the corridor of the CHU de Charleroi hospital, amid the outbreak of the coronavirus disease (COVID-19), in Charleroi, Belgium, November 5, 2020. REUTERS/Yves Herman

Drawings related to the coronavirus disease (COVID-19) hang on a corridor wall of the CHIREC Braine l'Alleud-Waterloo hospital, in Braine l'Alleud, Belgium, October 23, 2020. REUTERS/Yves Herman

A medical worker walks on a corridor of a hospital, as the spread of the coronavirus disease (COVID-19) continues, on the outskirts of Buenos Aires, Argentina October 16, 2020. Picture taken October 16, 2020. REUTERS/Agustin Marcarian

A medical worker is seen on a corridor of a hospital, as the spread of the coronavirus disease (COVID-19) continues, on the outskirts of Buenos Aires, Argentina October 16, 2020. Picture taken October 16, 2020. REUTERS/Agustin Marcarian

Visitors stand near 'Through No.3', by British artist Liz West, a six metre long triangular prism corridor, which forms part of the Kensington and Chelsea Art Week Public Art Trail, in London, Britain October 11, 2020. REUTERS/Toby Melville

Visitors stand near 'Through No.3', by British artist Liz West, a six metre long triangular prism corridor, which forms part of the Kensington and Chelsea Art Week Public Art Trail, in London, Britain October 11, 2020. REUTERS/Toby Melville

Visitors stand near 'Through No.3', by British artist Liz West, a six metre long triangular prism corridor, which forms part of the Kensington and Chelsea Art Week Public Art Trail, in London, Britain October 11, 2020. REUTERS/Toby Melville

Ethnic Yi people are seen at a corridor with a sign reading "Communist Party is very good", at the Chengbei Ganen Community, a residential complex built for a relocation programme as part of China's poverty alleviation effort, in Yuexi county, during a government-organised media tour in Liangshan Yi Autonomous Prefecture, Sichuan province, China September 11, 2020. Picture taken September 11, 2020. REUTERS/Tingshu Wang

A student walks in the corridors of the School of Administration and Accounting at the Central University of Venezuela (UCV), in Caracas, Venezuela September 29, 2020. Picture taken September 29, 2020. REUTERS/Fausto Torrealba

A man waits for a bus in the industrial corridor of Walker Square in Milwaukee, Wisconsin, U.S., September 20, 2020. Picture taken September 20, 2020. REUTERS/Sebastian Hidalgo

A mural showing Mexican, Puerto Rican, Native American and Black historic icons is displayed near the industrial corridor of Walker Square in Milwaukee, Wisconsin, U.S., September 20, 2020. Picture taken September 20, 2020. REUTERS/Sebastian Hidalgo

A man waits for a bus in the industrial corridor of Walker Square in Milwaukee, Wisconsin, U.S., September 20, 2020. Picture taken September 20, 2020. REUTERS/Sebastian Hidalgo

A man waits for a bus in the industrial corridor of Walker Square in Milwaukee, Wisconsin, U.S., September 20, 2020. Picture taken September 20, 2020. REUTERS/Sebastian Hidalgo

People are seen along an airport corridor, after Italy made testing compulsory for travellers from parts of France that have a high number of cases, at the Fiumicino Airport in Rome, Italy, September 23, 2020. REUTERS/Remo Casilli

A firefighter from the Marins-Pompiers of Marseille (Marseille Naval Fire Battalion), wearing a protective suit and a face mask, walks in a corridor in a school as part of the Operation Comete to detect traces of the coronavirus disease (COVID-19) infection in Marseille, France, September 22, 2020. REUTERS/Eric Gaillard

A resident on a wheelchair is seen in a corridor at "Les Figuiers" retirement home (Ehpad - Housing Establishment for Dependant Elderly People) amid the coronavirus disease (COVID-19) outbreak in Villeneuve-Loubet, France, September 16, 2020. REUTERS/Eric Gaillard

Pupils walk in a corridor as children return to the Simonetta Salacone primary and secondary school for the first time since March, adhering to strict regulations to avoid coronavirus disease (COVID-19) contagion, in Rome, Italy, September 14, 2020. REUTERS/Remo Casilli

A nurse in a protective suit is pictured at the corridor of a quarantine center, amid the spread of the coronavirus disease (COVID-19), in Misrata, Libya September 7, 2020. Picture taken September 7, 2020. REUTERS/Ayman Al-Sahili

Nurses in protective suits are seen at the corridor of a quarantine center, amid the spread of the coronavirus disease (COVID-19), in Misrata, Libya September 7, 2020. Picture taken September 7, 2020. REUTERS/Ayman Al-Sahili

A nurse in a protective suit checks the medicines at the corridor of a quarantine center, amid the spread of the coronavirus disease (COVID-19), in Misrata, Libya September 7, 2020. Picture taken September 7, 2020. REUTERS/Ayman Al-Sahili

A medic stays in a corridor of the hospital where Russian opposition leader Alexei Navalny received medical treatment before his medical evacuation to Germany, in Omsk, Russia September 4, 2020. Picture taken September 4, 2020. Picture taken September 4, 2020. REUTERS/Alexey Malgavko

Direction markers are seen on a corridor before the students return to school in September, during the coronavirus disease (COVID-19) outbreak, at Larramendi school in Mungia, Spain, August 28, 2020. REUTERS/Vincent West

A researcher holding a bug zapper checks the corridor for stray mosquitos at the National Environmental Agency's mosquito production facility in Singapore August 19, 2020. Picture taken August 19, 2020. REUTERS/Edgar Su

Employees from a disinfection service company wear protective masks as they sanitise the corridors of Benghazi Medical Center, following the outbreak of the coronavirus disease (COVID-19), in Benghazi, Libya August 6, 2020. Picture taken August 6, 2020. REUTERS/Esam Omran Al-Fetori

A man disinfects a corridor of the aquarium at Rio de Janeiro's AquaRio, ahead of its re-opening amid the coronavirus disease (COVID-19) outbreak, in Rio de Janeiro, Brazil, August 14, 2020. REUTERS/Ricardo Moraes

A woman leans against a stretcher holding her husband in the corridor of the emergency ward of Jawahar Lal Nehru Medical College and Hospital, during the coronavirus disease (COVID-19) outbreak, in Bhagalpur, in the eastern state of Bihar, India, July 27, 2020. REUTERS/Danish Siddiqui TPX IMAGES OF THE DAY SEARCH "BHAGALPUR HOSPITAL COVID-19" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Damaged lockers are seen in the corridor of the Saint George Hospital University Medical Center, after a massive blast in Beirut's port area, Lebanon, August 11, 2020. Picture taken August 11, 2020. REUTERS/Hannah McKay

An Ecuadorian navy officer looks at a radar after a fishing fleet of mostly Chinese-flagged ships was detected in an international corridor that borders the Galapagos Islands' exclusive economic zone, in the Pacific Ocean, August 7, 2020. Picture taken August 7, 2020. REUTERS/Santiago Arcos

Ecuadorian Navy vessels surround a fishing boat after detecting a fishing fleet of mostly Chinese-flagged ships in an international corridor that borders the Galapagos Islands' exclusive economic zone, in the Pacific Ocean, August 7, 2020. Picture taken August 7, 2020. REUTERS/Santiago Arcos

Fishing boats are seen from an aircraft of the Ecuadorian navy after a fishing fleet of mostly Chinese-flagged ships was detected in an international corridor that borders the Galapagos Islands' exclusive economic zone, in the Pacific Ocean, August 7, 2020. Picture taken August 7, 2020. REUTERS/Santiago Arcos

A fishing boat is seen from an aircraft of the Ecuadorian navy after a fishing fleet of mostly Chinese-flagged ships was detected in an international corridor that borders the Galapagos Islands' exclusive economic zone, in the Pacific Ocean August 7, 2020. Picture taken August 7, 2020. REUTERS/Santiago Arcos

Ecuadorian Navy vessels surround a fishing boat after detecting a fishing fleet of mostly Chinese-flagged ships in an international corridor that borders the Galapagos Islands' exclusive economic zone, in the Pacific Ocean, August 7, 2020. Picture taken August 7, 2020. REUTERS/Santiago Arcos

A fishing boat is seen from an aircraft of the Ecuadorian navy after a fishing fleet of mostly Chinese-flagged ships was detected in an international corridor that borders the Galapagos Islands' exclusive economic zone, in the Pacific Ocean, August 7, 2020. Picture taken August 7, 2020. REUTERS/Santiago Arcos

A fishing boat is seen from an aircraft of the Ecuadorian navy after a fishing fleet of mostly Chinese-flagged ships was detected in an international corridor that borders the Galapagos Islands' exclusive economic zone, in the Pacific Ocean, August 7, 2020. Picture taken August 7, 2020. REUTERS/Santiago Arcos

An Ecuadorian navy officer looks at images of fishing boats on a device after a fishing fleet of mostly Chinese-flagged ships was detected in an international corridor that borders the Galapagos Islands' exclusive economic zone, in the Pacific Ocean, August 7, 2020. Picture taken August 7, 2020. REUTERS/Santiago Arcos

An Ecuadorian navy officer looks at a radar after a fishing fleet of mostly Chinese-flagged ships was detected in an international corridor that borders the Galapagos Islands' exclusive economic zone, in the Pacific Ocean, August 7, 2020. Picture taken August 7, 2020. REUTERS/Santiago Arcos

An Ecuadorian navy officer looks at a radar after a fishing fleet of mostly Chinese-flagged ships was detected in an international corridor that borders the Galapagos Islands' exclusive economic zone, in the Pacific Ocean, August 7, 2020. Picture taken August 7, 2020. REUTERS/Santiago Arcos

An Ecuadorian navy aircraft is preparing to land in San Cristobal after a fishing fleet of mostly Chinese-flagged ships was detected in an international corridor that borders the Galapagos Islands' exclusive economic zone, in San Cristobal, Galapagos Islands, Ecuador August 7, 2020. Picture taken August 7, 2020. REUTERS/Santiago Arcos

Ecuadorian Navy vessels surround a fishing boat after detecting a fishing fleet of mostly Chinese-flagged ships in an international corridor that borders the Galapagos Islands' exclusive economic zone, in the Pacific Ocean, August 7, 2020. Picture taken August 7, 2020. REUTERS/Santiago Arcos

A nurse wearing a protective suit walks at the corridor of a quarantine ward, amid the spread of the coronavirus disease (COVID-19), at Al-Hakim Hospital, in the holy city of Najaf, Iraq July 12, 2020. Picture taken July 12, 2020. REUTERS/Alaa Al-Marjani

A man wearing a protective mask pushes a woman in a wheelchair suspected to have the coronavirus disease (COVID-19) at the corridor of a quarantine ward at Al-Hakim Hospital, in the holy city of Najaf, Iraq July 12, 2020. Picture taken July 12, 2020. REUTERS/Alaa Al-Marjani

A worker wearing a protective suit pushes an oxygen cylinder at the corridor of a quarantine ward at Al-Hakim Hospital, amid the spread of the coronavirus disease (COVID-19), in the holy city of Najaf, Iraq July 12, 2020. Picture taken July 12, 2020. REUTERS/Alaa Al-Marjani

Foot marks to indicate visitors to keep social distancing are seen in a corridor inside the Kabukiza Theatre, where Japan's stately traditional Kabuki theatre will resume on August 1 following a five-month closure due to the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan July 31, 2020. Picture taken July 31, 2020. REUTERS/Issei Kato

A corridor of an old pre-trial detention facility is seen in Kyiv, Ukraine July 27, 2020. Picture taken July 27, 2020. REUTERS/Gleb Garanich

For Valentine's Day this year, Henry Tong gave his wife, Elaine To, a photo book. It holds the memories of their life together: their first date six years ago, kissing in front of a pro-democracy "Lennon wall"; the tattooed bands on their ring fingers, symbolizing a bond not easily erased; and their wedding day last year, when he vowed to her, "Not even a nuclear explosion could break us apart." The book doesn't mention the 50 hours that Henry and Elaine spent in jail in July last year, just four days before their wedding. Arrested at a pro-democracy protest, the couple were kept in different cells at the police station, separated by a long corridor and a large wall. Not knowing if they'd get out in time for their wedding, the couple tried to stay together by shouting across the cells. "We couldn?t see each other. But if we yelled loud enough, we could listen to each other's voices," Elaine said. REUTERS/Tyrone Siu SEARCH "HONG KONG NEWLYWEDS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY

For Valentine's Day this year, Henry Tong gave his wife, Elaine To, a photo book. It holds the memories of their life together: their first date six years ago, kissing in front of a pro-democracy "Lennon wall"; the tattooed bands on their ring fingers, symbolizing a bond not easily erased; and their wedding day last year, when he vowed to her, "Not even a nuclear explosion could break us apart." The book doesn?t mention the 50 hours that Henry and Elaine spent in jail in July last year, just four days before their wedding. Arrested at a pro-democracy protest, the couple were kept in different cells at the police station, separated by a long corridor and a large wall. Not knowing if they?d get out in time for their wedding, the couple tried to stay together by shouting across the cells. "We couldn?t see each other. But if we yelled loud enough, we could listen to each other?s voices," Elaine said. REUTERS/Tyrone Siu SEARCH "HONG KONG NEWLYWEDS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY

A healthcare worker wearing protective gear takes swab from a woman for a rapid antigen test in a corridor of a residential apartment, amidst the coronavirus disease (COVID-19) outbreak, in Ahmedabad, India, July 23, 2020. REUTERS/Amit Dave

News reporters and Senate staff walk through the Senate Subway Corridor as Senator Joe Manchin (D-WV) speaks to a television reporter, following a series of meetings on efforts to pass new coronavirus aid legislation on Capitol Hill in Washington, U.S. July 21, 2020. REUTERS/Tom Brenner

A child who suffers from cancer sits in a corridor at the Children's Hospital for Cancer Diseases, amid the spread of the coronavirus disease (COVID-19), in Basra, Iraq July 9, 2020. Picture taken July 9, 2020. REUTERS/Essam Al-Sudani

A child who suffers from cancer sits in a corridor at the Children's Hospital for Cancer Diseases, amid the spread of the coronavirus disease (COVID-19), in Basra, Iraq July 9, 2020. Picture taken July 9, 2020. REUTERS/Essam Al-Sudani

A corridor of the UBI Banca's Milan offices, where CEO Victor Massiah worked during the lockdown due to the spread of the coronavirus disease (COVID-19), is seen in Milan, Italy, June 16, 2020. Picture taken June 16, 2020. REUTERS/Valentina Za

A cleaner wears a protective mask while she walks along a corridor after the Government eased the nationwide lockdown following the coronavirus disease (COVID-19) outbreak, at the Sofitel Legend Metropole hotel, which was the venue of the February 2019 Trump-Kim summit, in Hanoi, Vietnam June 26, 2020. REUTERS/Kham

A kid sits in the corridor of his house, amid the outbreak of the coronavirus disease (COVID-19), in Yoff neighbourhood of Dakar, Senegal June 24, 2020. REUTERS/Zohra Bensemra

An Indonesian Red Cross personnel wearing a protective gear sprays disinfectant at a corridor of a school after the government eased restrictive measures amid the coronavirus disease (COVID-19) outbreak in Jakarta, Indonesia, June 23, 2020. REUTERS/Willy Kurniawan

A resident of the Villa 31 is seen along a corridor during the spread of the coronavirus disease (COVID-19) in Buenos Aires, Argentina May 6, 2020. Picture taken May 6, 2020. REUTERS/Agustin Marcarian