A pandemic prevention worker in a protective suit piles up bags of medical waste outside a building where residents isolate at home as coronavirus disease (COVID-19) outbreaks continue in Beijing, December 5, 2022. REUTERS/Thomas Peter 

Epidemic prevention workers in protective suits put medical waste into boxes in a residential compound as outbreaks of the coronavirus disease (COVID-19) continue in Beijing, China November 27, 2022. REUTERS/Thomas Peter 

Centers for Disease Control and Prevention (CDC) Director Rochelle Walensky looks up at a video monitor of Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases and chief medical adviser to President Biden, as they testify before a Senate Health, Education, Labor, and Pensions hearing to examine an update on the ongoing Federal response to COVID-19, at the U.S. Capitol in Washington, U.S., June 16, 2022. REUTERS/Kevin Lamarque 

Centers for Disease Control and Prevention (CDC) Director Rochelle Walensky looks up at a video monitor with Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases and chief medical adviser to President Biden, as they testify before a Senate Health, Education, Labor, and Pensions hearing to examine an update on the ongoing Federal response to COVID-19, at the U.S. Capitol in Washington, U.S., June 16, 2022. REUTERS/Kevin Lamarque      

Nicole Spencer, 24, a medical student who suffers from Postural Orthostatic Tachycardia Syndrome (POTS), sits at her weekly IV infusion session at the HydrOcuse Medspa Solution Center, in Syracuse, New York, U.S. May 4, 2022. The procedure helps her prevent fainting, tachycardia and vitamin deficiencies. REUTERS/Magali Druscovich SEARCH "DRUSCOVICH HEALTH SOCIAL MEDIA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A medical worker collects a swab sample from a person at a makeshift testing site next to a mobile testing vehicle with a sign of Guangdong Provincial Center for Disease Prevention and Control, following the coronavirus disease (COVID-19) outbreak, in Tung Chung, Hong Kong, China February 21, 2022. REUTERS/Lam Yik 

Medical workers wearing protective suits walk past a makeshift testing site next to a mobile testing vehicle dispatched from mainland China, following the coronavirus disease (COVID-19) outbreak, in Tung Chung, Hong Kong, China February 21, 2022. REUTERS/Lam Yik 

Medical workers wearing personal protective equipment (PPE), designed to prevent the spread of the coronavirus disease (COVID-19), work at a COVID-19 testing site at Beijing Capital International Airport ahead of the Beijing 2022 Winter Olympics in Beijing, China January 31, 2022. REUTERS/Wolfgang Rattay 

Medical workers wearing personal protective equipment (PPE), designed to prevent the spread of the coronavirus disease (COVID-19), work at a COVID-19 testing site at Beijing Capital International Airport ahead of the Beijing 2022 Winter Olympics in Beijing, China January 31, 2022. REUTERS/Wolfgang Rattay 

U.S. President Joe Biden and his COVID-19 Response Team, Jeff Zients, COVID-19 Response Coordinator, Dr. Rochelle Walensky, Director of the Centers for Disease Control and Prevention and Dr. Anthony Fauci, White House Chief Medical Advisor, hold their regular call with the National Governors Association to discuss his Administration's response to the Omicron variant and to hear from the Governors on the needs in their States, in the South Court Auditorium at the White House, in Washington, U.S., December 27, 2021. REUTERS/Evelyn Hockstein 

Levante Popular da Juventude (Popular Youth Levante) activists protest at the entrance of the Prevent Senior headquarters after allegations of manipulation of the medical records and death certificates emerged, and to denounce the partnership between the company and Bolsonaro's government during the coronavirus disease (COVID-19) pandemic, in Sao Paulo, Brazil September 30, 2021. REUTERS/Amanda Perobelli 

Levante Popular da Juventude (Popular Youth Levante) activists protest at the entrance of the Prevent Senior headquarters after allegations of manipulation of the medical records and death certificates emerged, and to denounce the partnership between the company and Bolsonaro's government during the coronavirus disease (COVID-19) pandemic, in Sao Paulo, Brazil September 30, 2021. REUTERS/Amanda Perobelli 

Levante Popular da Juventude (Popular Youth Levante) activists protest at the entrance of the Prevent Senior headquarters after allegations of manipulation of the medical records and death certificates emerged, and to denounce the partnership between the company and Bolsonaro's government during the coronavirus disease (COVID-19) pandemic, in Sao Paulo, Brazil September 30, 2021. REUTERS/Amanda Perobelli 

Levante Popular da Juventude (Popular Youth Levante) activists paint the entrance of the Prevent Senior hospital chain headquarters, as a protest after allegations of manipulation of the medical records and death certificates emerged, and to denounce the partnership between the company and Bolsonaro's government during the coronavirus disease (COVID-19) pandemic, in Sao Paulo, Brazil September 30, 2021. REUTERS/Amanda Perobelli 

A demonstrator, wearing a mask depicting Brazil's President Jair Bolsonaro and a presidential sash which reads "Murderer", protests at the entrance of the Prevent Senior headquarters, after allegations of manipulation of the medical records and death certificates emerged, and to denounce the partnership between the company and Bolsonaro's government during the coronavirus disease (COVID-19) pandemic, in Sao Paulo, Brazil September 30, 2021. REUTERS/Amanda Perobelli 

Levante Popular da Juventude (Popular Youth Levante) activists paint the entrance of the Prevent Senior hospital chain headquarters, as a protest after allegations of manipulation of the medical records and death certificates emerged, and to denounce the partnership between the company and Bolsonaro's government during the coronavirus disease (COVID-19) pandemic, in Sao Paulo, Brazil September 30, 2021. REUTERS/Amanda Perobelli 

Nippon Medical School Hospital's ICU doctor Shoji Yokobori stands in the ICU which is covered with plastics to prevent the spread of coronavirus disease (COVID-19) at the hospital in Tokyo, Japan, August 1, 2021. Picture taken on August 1, 2021. REUTERS/Kim Kyung-Hoon 

Nippon Medical School Hospital's ICU doctor Shoji Yokobori stands in the ICU which is covered with plastics to prevent the spread of coronavirus disease (COVID-19) at the hospital in Tokyo, Japan, August 1, 2021. Picture taken on August 1, 2021. REUTERS/Kim Kyung-Hoon 

Nippon Medical School Hospital's ICU doctor Shoji Yokobori checks the devices of an ambulance, to prevent the spread of COVID-19 at the hospital in Tokyo, Japan, August 1, 2021. Picture taken on August 1, 2021. REUTERS/Kim Kyung-Hoon 

Members of medical staff and employees work at a clinic during a lockdown imposed to prevent the spread of the coronavirus disease (COVID-19), in Tubas in the Israeli-occupied West Bank March 15, 2021. REUTERS/Raneen Sawafta 

Members of the medical team disinfect inside a mosque to prevent the spread of the coronavirus disease (COVID-19), as students wear masks and study, in the holy city of Najaf, Iraq, February 15, 2021. REUTERS/Alaa Al-Marjani 

Members of the medical team disinfect inside a mosque to prevent the spread of the coronavirus disease (COVID-19), in the holy city of Najaf, Iraq, February 15, 2021. REUTERS/Alaa Al-Marjani 

Members of the medical team disinfect a mosque to prevent the spread of the coronavirus disease (COVID-19), in the holy city of Najaf, Iraq, February 15, 2021. REUTERS/Alaa Al-Marjani 

A girl wearing a face mask to prevent the spread of the coronavirus disease (COVID-19) walks past a graffiti in homage to the medical staff, at the San Martin hospital, in La Plata, on the outskirts of Buenos Aires, Argentina January 21, 2021. REUTERS/Agustin Marcarian 

A woman wearing a face mask to prevent the spread of the coronavirus disease (COVID-19) walks past a graffiti in homage to the medical staff, at the San Martin hospital, in La Plata, on the outskirts of Buenos Aires, Argentina January 21, 2021. REUTERS/Agustin Marcarian 

A woman wearing a face mask to prevent the spread of the coronavirus disease (COVID-19) walks past a graffiti in homage to the medical staff, at the San Martin hospital, in La Plata, on the outskirts of Buenos Aires, Argentina January 21, 2021. REUTERS/Agustin Marcarian 

People wearing protective face masks, used as a preventive measure against the spread of the coronavirus disease (COVID-19), wait in a queue outside a medical room at a local clinic in Omsk, Russia November 9, 2020. REUTERS/Alexey Malgavko 

People wearing protective face masks, used as a preventive measure against the spread of the coronavirus disease (COVID-19), wait in a queue outside a medical room at a local clinic in Omsk, Russia November 9, 2020. REUTERS/Alexey Malgavko 

A patient wearing a protective face mask, used as a preventive measure against the spread of the coronavirus disease (COVID-19), waits in a queue outside a medical room at a local clinic in Omsk, Russia November 9, 2020. REUTERS/Alexey Malgavko 

A member of the medical team wearing a protective face mask to prevent the spread of the coronavirus disease (COVID-19) sprays disinfectant around a drive-through testing unit at Ain Shams field hospital in Cairo, Egypt, June 21, 2020. Picture taken June 21, 2020. REUTERS/Amr Abdallah Dalsh 

A member of a medical team wearing a protective face mask to prevent the spread of the coronavirus disease (COVID-19), while spraying disinfectant in front of at the Ain Shams field hospital in Cairo, Egypt, June 21, 2020. Picture taken June 21, 2020. REUTERS/Amr Abdallah Dalsh 

An instructor shows a monitoring system that can minimize interaction between healthcare workers and patients to prevent the spread of coronavirus disease (COVID-19) at a "Nurse summer camp" event at Taipei Medical University Hospital in Taipei, Taiwan, August 21, 2020. REUTERS/Ann Wang 

Students wear face masks to prevent the spread of the coronavirus disease (COVID-19) while participating in a "Nurse summer camp" event at Taipei Medical University Hospital in Taipei, Taiwan, August 21, 2020. REUTERS/Ann Wang 

An Orion EMS employee prepares to transfer a patient to the Texas Medical Center while wearing protective equipment to prevent the spread of the coronavirus disease (COVID-19) in Houston, Texas, U.S., August 19, 2020. REUTERS/Callaghan O'Hare TPX IMAGES OF THE DAY 

Orion EMS employees transfer a patient to the Texas Medical Center while wearing protective equipment to prevent the spread of the coronavirus disease (COVID-19) in Houston, Texas, U.S., August 19, 2020. REUTERS/Callaghan O'Hare 

Orion EMS employees transfer patients to the Texas Medical Center while wearing protective equipment to prevent the spread of the coronavirus disease (COVID-19) in Houston, Texas, U.S., August 19, 2020. REUTERS/Callaghan O'Hare 

An Orion EMS employee wears protective equipment to prevent the spread of the coronavirus disease (COVID-19) while waiting for a medical transfer in Houston, Texas, U.S., August 19, 2020. REUTERS/Callaghan O'Hare 

A medical worker walks through the Texas Medical Center while wearing protective equipment to prevent the spread of the coronavirus disease (COVID-19) in Houston, Texas, U.S., August 19, 2020. REUTERS/Callaghan O'Hare 

An Orion EMS employee prepares an ambulance for a medical transfer while wearing protective equipment to prevent the spread of the coronavirus disease (COVID-19) in Houston, Texas, U.S., August 19, 2020. REUTERS/Callaghan O'Hare 

An Orion EMS paramedic waits to transfer a patient to the Texas Medical Center while wearing protective equipment to prevent the spread of the coronavirus disease (COVID-19) in Houston, Texas, U.S., August 19, 2020. REUTERS/Callaghan O'Hare 

Medical healthcare workers wearing protective suits are seen at a testing center for coronavirus disease (COVID-19) in Hanoi, Vietnam August 10, 2020. REUTERS/Kham 

A medical specialist wearing a protective suit collects a swab sample from a traveller who has returned from Da Nang, at a testing center for coronavirus disease (COVID-19) in Hanoi, Vietnam August 10, 2020. REUTERS/Kham 

A medical specialist wearing a protective suit places testing samples of travellers who have returned from Da Nang, to a box at a rapid testing center for the coronavirus disease (COVID-19) in Hanoi, Vietnam August 10, 2020. REUTERS/Kham 

Medical specialists wearing protective hazmat suits take a swab sample to test for the coronavirus disease (COVID-19) from a woman repatriated from Singapore at a military base in southern Mekong delta Dong Thap province, Vietnam August 8, 2020. REUTERS/Mai Nguyen 

Medical specialists wearing protective hazmat suits take a swab sample to test for the coronavirus disease (COVID-19) from a woman repatriated from Singapore at a military base in southern Mekong delta Dong Thap province, Vietnam August 8, 2020. REUTERS/Mai Nguyen 

A medical specialist wearing a protective suit collects a swab sample from a traveller who has returned from Da Nang, at a rapid testing center for coronavirus disease (COVID-19) in Hanoi, Vietnam August 8, 2020. REUTERS/Kham 

A medical specialist wearing a protective suit collects a swab sample from a traveller who has returned from Da Nang, at a rapid testing center for coronavirus disease (COVID-19) in Hanoi, Vietnam August 8, 2020. REUTERS/Kham 

A medical specialist wearing a protective suit holds testing samples of travellers who have returned from Da Nang, at a rapid testing center for the coronavirus disease (COVID-19) in Hanoi, Vietnam August 8, 2020. REUTERS/Kham 

A medical specialist wearing a protective suit collects a swab sample from a boy who has returned after travelling to Da Nang, at a rapid testing center for coronavirus disease (COVID-19) in Hanoi, Vietnam August 8, 2020. REUTERS/Kham 

A member of medical team wearing a protective face mask to prevent the spread of the coronavirus disease (COVID-19), sprays a car in front of at the Ain Shams field hospital in Cairo, Egypt June 16, 2020. REUTERS/Amr Abdallah Dalsh 

Natalia, a Washington resident, looks on as a medical personnel sanitizes a seat between appointments, amid the coronavirus disease (COVID-19) outbreak, at the Centers for Disease Control and Prevention Serology Testing site in Washington, D.C., U.S., June 16, 2020. REUTERS/Tom Brenner 

Women wearing face masks designed to prevent the spread of the new coronavirus disease (COVID-19) check a mask in front of a medical supplies shop in downtown Cairo, after Egypt's government made masks mandatory in public places and on public transport, in Cairo, Egypt May 31, 2020. REUTERS/Amr Abdallah Dalsh 

Islam Magdy, an owner of a medical supplies shop, sits beside a variety of protective face masks to prevent the spread of the new coronavirus disease (COVID-19) in downtown Cairo, after Egypt's government made wearing masks mandatory in public places and on public transport, in Cairo, Egypt May 31, 2020. Picture taken May 31, 2020. REUTERS/Amr Abdallah Dalsh 

A medical staff member wearing face mask to prevent the spread of the coronavirus disease (COVID-19) walks in front of hospital in downtown Cairo, after Egypt's government made wearing masks mandatory in public places and public transport, in Cairo, Egypt May 31, 2020. REUTERS/Amr Abdallah Dalsh 

An owner of a medical shop poses with variety of protective face masks to wear to prevent the spread of the new coronavirus disease (COVID-19) in downtown Cairo, after Egypt's government made wearing masks mandatory in public places and on public transport, in Cairo, Egypt May 31, 2020. REUTERS/Amr Abdallah Dalsh 

Medics examine a Syrian man coming from Turkey, before he enters the quarantine centre where those entering from Turkey are monitored as a preventive measure against the spread of the coronavirus disease (COVID-19), in the town of Jisr al-Shughour in Idlib province, Syria April 30, 2020. Picture taken April 30, 2020. REUTERS/Khalil Ashawi 

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 after checking the homeless 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 

Medical staff wear protective suits during a medical check-up for the homeless after authorities prepared the sports halls for homeless people to prevent the spread of the coronavirus disease (COVID-19) in Jakarta, Indonesia, April 27, 2020. REUTERS/Ajeng Dinar Ulfiana