A medical professor demonstrates three bottle system for chest tube thoracotomy to fourth year medical students, following the resumption of limited face-to-face classes amid the coronavirus disease (COVID-19), at the University of Santo Tomas, in Manila, Philippines, June 14, 2021. REUTERS/Lisa Marie David

Manisha Bashu (R) and her mother press the chest of her father, who is suffering from breathing problem, after he felt unconsicous while receiving oxygen support for free at a Gurudwara (Sikh temple), amidst the spread of coronavirus disease (COVID-19), in Ghaziabad, India, April 30, 2021. REUTERS/Adnan Abidi

Manisha Bashu presses the chest of her father, who is suffering from breathing problem, after he felt unconscious while receiving oxygen support for free at a Gurudwara (Sikh temple), amidst the spread of coronavirus disease (COVID-19), in Ghaziabad, India, April 30, 2021. REUTERS/Adnan Abidi

A respiratory therapist successfully performs chest compression to a coronavirus disease (COVID-19) patient who had lost vital signs inside the intensive care unit of Humber River Hospital in Toronto, Ontario, Canada April 20, 2021. REUTERS/Carlos Osorio

A respiratory therapist successfully performs chest compression on a coronavirus disease (COVID-19) patient who had lost vital signs inside the intensive care unit of Humber River Hospital in Toronto, Ontario, Canada April 20, 2021. Picture taken April 20, 2021. REUTERS/Carlos Osorio

A respiratory therapist successfully performs chest compression on a coronavirus disease (COVID-19) patient who had lost vital signs inside the intensive care unit of Humber River Hospital in Toronto, Ontario, Canada April 20, 2021. Picture taken April 20, 2021. REUTERS/Carlos Osorio

Chest x-rays of patients suffering from the coronavirus disease (COVID-19) are seen at a wall of the COVID-19 hospital Batajnica in Belgrade, Serbia, April 7, 2021. REUTERS/Marko Djurica

Argentina's President Alberto Fernandez places his hand on his chest as Mexico's President Andres Manuel Lopez Obrador claps hands during the National Flag Day event in Iguala, Guerrero State, Mexico February 24, 2021. REUTERS/Henry Romero

Argentina's President Alberto Fernandez places his hand on his chest as Mexico's President Andres Manuel Lopez Obrador claps hands during the National Flag Day event in Iguala, Guerrero State, Mexico February 24, 2021. REUTERS/Henry Romero

Zoltan Berki Sr, 55, searches for firewood in an old abandoned house in Ozd, Hungary, December 19, 2020. To Zoltan Berki Sr. pollution means chest pain and coughs, but cold is a more imminent danger. "We collect what we find and take it home to burn," Berki said. "They heat up nicely, and we can't afford to buy anything." REUTERS/Marton Monus SEARCH "MONUS POLLUTION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY.

Zoltan Berki Sr, 55, and Bela Varga, 53, search for coal in the waste dump off an old abandoned mine in Farkaslyuk, Hungary, December 19, 2020. To Zoltan Berki Sr. pollution means chest pain and coughs, but cold is a more imminent danger. "We'll dig down here, one shovels, the other picks, we collect what we find and take it home to burn," Berki said. "They heat up nicely, and we can't afford to buy anything." REUTERS/Marton Monus SEARCH "MONUS POLLUTION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Zoltan Berki Sr, 55, looks for firewood in Ozd, Hungary, December 19, 2020. To Zoltan Berki Sr. pollution means chest pain and coughs, but cold is a more imminent danger. "We collect what we find and take it home to burn," Berki said. "They heat up nicely, and we can't afford to buy anything." REUTERS/Marton Monus SEARCH "MONUS POLLUTION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Zoltan Berki Sr, 55, and Bela Varga, 53, look for discarded plastic in Ozd, Hungary, December 6, 2020. To Zoltan Berki Sr. pollution means chest pain and coughs, but cold is a more imminent danger. "We'll dig down here, one shovels, the other picks, we collect what we find and take it home to burn," Berki said. "They heat up nicely, and we can't afford to buy anything." REUTERS/Marton Monus SEARCH "MONUS POLLUTION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Badges are seen on the chest of NHS worker at the COVID-19 vaccine center at Basingstoke Fire Station, in Basingstoke, Britain February 4, 2021. REUTERS/Peter Cziborra

A coronavirus disease (COVID-19) patient receives a chest x-ray in the ICU at SSM Health St. Anthony Hospital in Oklahoma City, Oklahoma, U.S., January 28, 2021. REUTERS/Nick Oxford

The congress badge with a communist logo is pictured on the chest of a delegate during the 13th national congress of the ruling communist party of Vietnam at the National Convention Center in Hanoi, Vietnam January 27, 2021. REUTERS/Kham

The congress badge with a communist logo is pictured on the chest of a delegate during the 13th national congress of the ruling communist party of Vietnam at the National Convention Center in Hanoi, Vietnam January 27, 2021. REUTERS/Kham

The congress badge with a communist logo is pictured on the chest of a delegate during the 13th national congress of the ruling communist party of Vietnam at the National Convention Center in Hanoi, Vietnam January 27, 2021. REUTERS/Kham

Food that contains approximately 6,600 calories that Daniela typically consumes in one day as she tries to lose weight while taking part in a weight loss program, is displayed for a photograph at her family home in Texcoco, Mexico, January 8, 2021. Daniela was 11 years old when a doctor told her she would not live more than another six or seven years. Weighing 75 kilos (165 lb), about twice the recommended weight for her age, she had just suffered a minor heart attack. That was two years ago. She still remembers the pain in her chest. Then she was also diagnosed with diabetes. Daniela knows the disease well: she watched eight family members die from its complications. "The doctor told me that I'll die, that I'll not even turn 18 years old," she said. Now Daniela is 14 years old and weighs 81 kilos. Reuters was unable to contact the doctor, who treated Daniela at a different facility previously, but her current caseworker confirmed Daniela's account. "Instead of losing weight, I put on more," Daniela added. Nutritionist Betzabe Salgado, who works at Hospital Infantil de Mexico Federico Gomez, where Daniela is undergoing a weight loss program, calculated the calorie amount. REUTERS/Carlos Jasso SEARCH "JASSO OBESITY" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. THE IMAGES SHOULD ONLY BE USED TOGETHER WITH THE STORY - NO STAND-ALONE USES.

A central venous catheter sits on the chest of Richard "Dick" Henry as he undergoes hemodialysis using a Tablo device at his home in Los Altos Hills, California, U.S., December 4, 2020. Picture taken December 4, 2020. REUTERS/Nathan Frandino

A paramedic wearing protective equipment looks over a chest X-ray as he responds to a call to transport a patient suffering from the coronavirus disease (COVID-19) in Belgrade, Serbia, December 1, 2020. Picture taken December 1, 2020. REUTERS/Marko Djurica

Healthcare workers prepare to take a chest X-ray of COVID-19 patient Troy Burrows as healthcare personnel treat people with the coronavirus disease (COVID-19) at a hospital in Lakin, Kansas, U.S., November 19, 2020. Picture taken November 19, 2020. REUTERS/Callaghan O'Hare

Dr. Joseph Varon, 58, the chief medical officer at United Memorial Medical Center (UMMC), and a team of healthcare workers perform CPR on a COVID-19 patient at UMMC, during the coronavirus disease (COVID-19) outbreak, in Houston, Texas, U.S., July 17, 2020. Reuters photographer Callaghan O'Hare: "Houston's COVID-19 cases had been rising for weeks and it was my third time photographing patients in the intensive care unit. I was following Doctor Varon and his team as they intubated two patients with worsening conditions. The first intubation went smoothly. We walked into the second patient's room and almost as soon as they began the procedure, his heart rate dropped. The air was filled with anxiety. I was in a corner of the room with my camera and it wasn't until two medical students jumped onto the bed and began administering chest compressions that I realized the patient was dying. The whole scene took place over the course of thirty minutes as we all nervously watched the clock and his heart rate monitor. Although this patient was surrounded by people while he died, they were faceless doctors in hazmat suits. He wasn't able to say goodbye to his family, friends, and the people who cared about him. I looked him up later on Facebook, and his profile picture had a filter on it that said, "I'm an essential worker, I can't stay home." I often think about him and the likelihood that he contracted the coronavirus at work. I hope his image and his story resonate with people and show why it's important to wear a mask and stay at home to protect those that can't." REUTERS/Callaghan O'Hare/File photo SEARCH "POY STORIES 2020" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY

Royalist Thitiwat Tanagaroon, whom the King Maha Vajiralongkorn and Queen Suthida praised for holding a royal portrait at an anti-government protest, shows his tattoos reading 'Very brave, very good, thank you' on the left arm and 'Under his graciousness' on the chest during an interview with Reuters at his house in Nonthaburi, Thailand November 6, 2020. Picture taken November 6, 2020. REUTERS/Jiraporn Kuhakan

Royalist Thitiwat Tanagaroon, whom the King Maha Vajiralongkorn and Queen Suthida praised for holding a royal portrait at an anti-government protest, shows his tattoos reading 'Very brave, very good, thank you' on the left arm and 'Under his graciousness' on the chest during an interview with Reuters at his house in Nonthaburi, Thailand November 6, 2020. Picture taken November 6, 2020. REUTERS/Jiraporn Kuhakan

Royalist Thitiwat Tanagaroon, whom the King Maha Vajiralongkorn and Queen Suthida praised for holding a royal portrait at an anti-government protest, shows his tattoos reading 'Very brave, very good, thank you' on the left arm and 'Under his graciousness' on the chest during an interview with Reuters at his house in Nonthaburi, Thailand November 6, 2020. Picture taken November 6, 2020. REUTERS/Jiraporn Kuhakan

Nicholas Okpe, who lays in a Lagos hospital ward recovering from a bullet wound to the chest, is pictured during an interview with Reuters, Nigeria October 24, 2020. Picture taken October 24, 2020. REUTERS/Afolabi Sotunde

Nicholas Okpe, who lays in a Lagos hospital ward recovering from a bullet wound to the chest, is pictured during an interview with Reuters, Nigeria October 24, 2020. Picture taken October 24, 2020. REUTERS/Afolabi Sotunde

Yaidis Colmenares walks towards the border between Venezuela and Colombia with her one-year-old baby strapped to her chest, during the coronavirus disease (COVID-19) outbreak, in San Cristobal, Venezuela October 12, 2020. Picture taken October 12, 2020. REUTERS/Carlos Eduardo Ramirez

Yaidis Colmenares walks towards the border between Venezuela and Colombia with her one-year-old baby strapped to her chest during the coronavirus disease (COVID-19) outbreak in San Cristobal, Venezuela October 12, 2020. Picture taken October 12, 2020. REUTERS/Carlos Eduardo Ramirez

Tsang Chi-kin, a 19-year-old student, who was shot in the chest during a protest last year, arrives at the District Court to face charges of rioting, in Hong Kong, China October 8, 2020. REUTERS/Tyrone Siu

Tsang Chi-kin, a 19-year-old student, who was shot in the chest during a protest last year, arrives at the District Court to face charges of rioting, in Hong Kong, China October 8, 2020. REUTERS/Tyrone Siu

Tsang Chi-kin, a 19-year-old student, who was shot in the chest during a protest last year, arrives at the District Court to face charges of rioting, in Hong Kong, China October 8, 2020. REUTERS/Tyrone Siu

Leonard Sloan, 64, who is from Navajo Nation, holds a horned toad (also known as a 'horny' toad), against his chest whilst saying a prayer for rain in the Bodaway Chapter in the Navajo Nation, Gap, Arizona, U.S. September 17, 2020. REUTERS/Stephanie Keith SEARCH "NAVAJO KEITH" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

A man shouts slogans next to a door of the La Moneda government building with a picture of late Chile's President Salvador Allende hanging on his chest, during a rally marking the 47th anniversary of the 1973 Chile military coup, in Santiago, Chile, September 11, 2020. REUTERS/Ivan Alvarado

Shi'ite Muslim children shout and beat their chests during a congregation to mark Ashura, amid the spread of the coronavirus disease (COVID-19), in New Delhi, India August 30, 2020. REUTERS/Adnan Abidi

Shi'ite Muslim men and children beat their chests during a congregation to mark Ashura, amid the spread of the coronavirus disease (COVID-19), in New Delhi, India August 30, 2020. REUTERS/Adnan Abidi

Shi'ite Muslims beat their chests as they carry a replica of the coffin of Imam Hussein during a Muharram procession to mark Ashura, in Kolkata, India August 30, 2020. REUTERS/Rupak De Chowdhuri

Bahraini Shi'ite wearing masks flagellate themselves with hands on their chests as they commemorate Ashura, the holiest day on the Shi'ite Muslim calendar, amid the spread of the coronavirus disease (COVID-19), in Manama, Bahrain, August 29, 2020. REUTERS/Hamad I Mohammed

Bahraini Shi'ite wearing masks flagellate themselves with hands on their chests as they commemorate Ashura, the holiest day on the Shi'ite Muslim calendar, amid the spread of the coronavirus disease (COVID-19), in Manama, Bahrain, August 29, 2020. REUTERS/Hamad I Mohammed

Bahraini Shi'ite wearing masks flagellate themselves with hands on their chests as they commemorate Ashura, the holiest day on the Shi'ite Muslim calendar, amid the spread of the coronavirus disease (COVID-19), in Manama, Bahrain, August 29, 2020. REUTERS/Hamad I Mohammed

Bahraini Shi'ite wearing masks flagellate themselves with hands on their chests as they commemorate Ashura, the holiest day on the Shi'ite Muslim calendar, amid the spread of the coronavirus disease (COVID-19), in Manama, Bahrain, August 29, 2020. REUTERS/Hamad I Mohammed

A tattoo reading "Russia will be free" is seen on a demonstrator's chest during a rally in solidarity with Belarusian people following recent protests to reject the presidential election results, in front of the Belarusian embassy in Moscow, Russia August 15, 2020. REUTERS/Evgenia Novozhenina

A man looks over a chest x-ray of a patient who is suspected of having the coronavirus disease (COVID-19) in front of the General Hospital in Novi Pazar, Serbia, July 23. 2020. Picture taken July 23, 2020. REUTERS/Marko Djurica

A veterinarian shaves a monkey's chest before a sterilization procedure by the Department of National Parks due to the increase of the macaques population in the urban area and the tourist spots of the city of Lopburi, in Thailand June 22, 2020. Picture taken June 22, 2020. REUTERS/Jorge Silva

An image of Jose Gregorio Hernandez is seen on a woman's chest near the church were his remains rest, after the Vatican on Friday announced his beatification, in Caracas, Venezuela, June 19, 2020. REUTERS/Manaure Quintero

Aubreanna Inda, 26, who on June 8 was hit in the chest by a flash-bang thrown by Seattle Police and went into cardiac arrest according to local media, watches medics who treated her speak during a press conference as protesters against racial inequality occupy space at the CHOP area near the Seattle Police Department's East Precinct in Seattle, Washington, U.S. June 18, 2020. REUTERS/Lindsey Wasson

Aubreanna Inda, 26, who on June 8 was hit in the chest by a flash-bang thrown by Seattle Police and went into cardiac arrest according to local media, watches medics who treated her speak during a press conference as protesters against racial inequality occupy space at the CHOP area near the Seattle Police Department's East Precinct in Seattle, Washington, U.S. June 18, 2020. REUTERS/Lindsey Wasson

Head of ICU doctor Everton Padilha Gomes looks over a chest x-ray of a patient at a field hospital set up to treat patients suffering from the coronavirus disease (COVID-19) in Guarulhos, Sao Paulo state, Brazil, May 12, 2020.REUTERS/Amanda Perobelli

Doctor Luciana Souza compares two different chest x-rays of a patient as she talks to a colleague at a field hospital set up to treat patients suffering from the coronavirus disease (COVID-19) in Guarulhos, Sao Paulo state, Brazil, May 12, 2020. REUTERS/Amanda Perobelli

A medical worker looks over a chest x-ray of a patient who is suspected of having coronavirus disease (COVID-19) inside the observation room at the ER of the Clinical Center of Serbia in Belgrade, Serbia, April 23, 2020. REUTERS/Marko Djurica

A member of the French Civil Protection practices chest compressions with a ResQPump before a rescue operation in Paris as the spread of the coronavirus disease (COVID-19) continues in France, April 4, 2020. Picture taken April 4, 2020. REUTERS/Benoit Tessier

A Hindu devotee carries lime piercings on his chest during the Thaipusam festival in Singapore February 8, 2020. REUTERS/Feline Lim

Pakistani Shi'ite Muslim supporters of Majlis-e-Wahdat-e-Muslimeen (MWM) chant slogans as they beat their chests to mourn the death of Iranian Major-General Qassem Soleimani, who was killed in a airstrike near Baghdad, during a protest against U.S. in Karachi, Pakistan January 3, 2020. REUTERS/Akhtar Soomro

A participant has his chest painted for the 20th annual Santa Speedo Run through the Back Bay neighborhood in Boston, Massachusetts, U.S., December 14, 2019. REUTERS/Brian Snyder

Zayleeana Tiemann, 3, rests her head on her father Zak Tiemann's chest before going to school in Seguin, Texas, U.S., October 29, 2019. REUTERS/Callaghan O'Hare SEARCH "US MATERNAL MORTALITY" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

A demonstrator with a slogan written on his chest attends an Extinction Rebellion climate change protest on Gran Via street as COP25 climate summit is held in Madrid, Spain, December 7, 2019. REUTERS/Juan Medina?

Women participate in a demonstration against gender violence, in Buenos Aires, Argentina December 6, 2019. The writing on the woman's chest reads "IMF, get out of Latin America." REUTERS/Magali Druscovich TPX IMAGES OF THE DAY

A demonstrator plays a drum during a protest against Chile's government in Santiago, Chile December 5, 2019. The message on his chest reads: "In Chile, he who pays lives. Cancer law (a reference to a demand for a law protecting against the disease". REUTERS/Pablo Sanhueza

MotoGP - Valencia Grand Prix - Circuit Ricardo Tormo, Cheste, Valencia, Spain - November 17, 2019 Petronas Yamaha SRT's Fabio Quartararo in action during the race REUTERS/Heino Kalis