A worker refills an oxygen cylinder as medical workers wait at the Yatharth Hospital in Noida, on the outskirts of New Delhi, India, September 15, 2020. Picture taken September 15, 2020. REUTERS/Adnan Abidi

A medical worker stands next to an oxygen cylinder at the Yatharth Hospital in Noida, on the outskirts of New Delhi, India, September 15, 2020. Picture taken September 15, 2020. REUTERS/Adnan Abidi TPX IMAGES OF THE DAY

A hospital staff waits to carry an oxygen cylinder at the Yatharth Hospital in Noida, on the outskirts of New Delhi, India, September 15, 2020. Picture taken September 15, 2020. REUTERS/Adnan Abidi

Sameer, 22, a medical worker, checks an oxygen cylinder before transferring COVID-19 patient Parsada Sah, 67, a shopkeeper, from the emergency ward to the Intensive Care Unit (ICU) of Jawahar Lal Nehru Medical College and Hospital, during the coronavirus disease (COVID-19) outbreak, in Bhagalpur, Bihar, India, July 27, 2020. REUTERS/Danish Siddiqui SEARCH "BHAGALPUR HOSPITAL COVID-19" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Sameer, 22, a medical worker, carries an oxygen cylinder on his shoulder as COVID-19 patient Parsada Sah, 67, a shopkeeper, is carried on a stretcher by his son Manoj Kumar Sah, 45, and Sameer's colleague as Parsada Sah is transferred from the emergency ward to the Intensive Care Unit (ICU) of Jawahar Lal Nehru Medical College and Hospital, during the coronavirus disease (COVID-19) outbreak, in Bhagalpur, Bihar, India, July 27, 2020. Even though Sah's family know that he is infected, the family goes inside the ward to feed Sah. "The staff just puts the food on the bed; they don't feed anyone," Manoj says. "If the patient can't eat himself, he has to get someone to help." REUTERS/Danish Siddiqui TPX IMAGES OF THE DAY SEARCH "BHAGALPUR HOSPITAL COVID-19" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Iraqi volunteers, who take care and deliver medical supplies to the coronavirus disease (COVID-19) patients at their homes, transport an oxygen cylinder to a patient's home in the holy city of Najaf, Iraq, August 3, 2020. Picture taken August 3, 2020. REUTERS/Alaa Al-Marjani

People carry a cylinder of subsidized domestic gas in the low-income neighborhood of El Valle, in Caracas, Venezuela July 16, 2020. Picture taken July 16, 2020. REUTERS/Manaure Quintero

Oxygen cylinders are seen at the hospital Hospital de la Mujer (Hospital of the Woman) as blocked roads due to protests put the oxygen supply at risk, in La Paz, Bolivia August 10, 2020. REUTERS/David Mercado

Oxygen cylinders are seen at the hospital Hospital de la Mujer (Hospital of the Woman) as blocked roads due to protests put the oxygen supply at risk, in La Paz, Bolivia August 10, 2020. REUTERS/David Mercado

A worker wearing a protective face shield checks a refilled oxygen cylinder before delivering it to a hospital, at a factory, amid the spread of the coronavirus disease (COVID-19), in the holy city of Kerbala, Iraq July 11, 2020. Picture taken July 11, 2020. REUTERS/Alaa Al-Marjani

Workers load refilled oxygen cylinders to a vehicle to deliver them to hospitals, at a factory, amid the spread of the coronavirus disease (COVID-19), in the holy city of Kerbala, Iraq July 11, 2020. Picture taken July 11, 2020. REUTERS/Alaa Al-Marjani

A worker wearing a protective mask disinfects oxygen cylinders before delivering to a hospital, amid the spread of the coronavirus disease (COVID-19), in the holy city of Kerbala, Iraq July 11, 2020. Picture taken July 11, 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

A medical worker wearing personal protective equipment (PPE) pushes an oxygen cylinder for a patient suffering from the coronavirus disease (COVID-19) at the casualty ward in Lok Nayak Jai Prakash (LNJP) hospital, in New Delhi, India July 17, 2020. REUTERS/Danish Siddiqui

A man pushes a cart filled with liquefied petroleum gas (LPG) cylinders on a street painted with circles for people to maintain social distancing after a few restrictions were relaxed during an extended lockdown to slow the spread of the coronavirus disease (COVID-19) in Mumbai, India, July 1, 2020. REUTERS/Francis Mascarenhas TPX IMAGES OF THE DAY

A Palestinian worker sanitizes gas cylinders in a filing station amid the coronavirus disease (COVID-19) outbreak, in Tubas in the Israeli-occupied West Bank July 1, 2020. REUTERS/Raneen Sawafta

A Palestinian worker sanitizes gas cylinders in a filing station amid the coronavirus disease (COVID-19) outbreak, in Tubas in the Israeli-occupied West Bank July 1, 2020. REUTERS/Raneen Sawafta

Workers load refilled oxygen cylinders to a vehicle to deliver them to hospitals, at a factory, amid the coronavirus disease (COVID-19) spread, in Baghdad, Iraq June 29, 2020. REUTERS/Thaier al-Sudani

Workers load refilled oxygen cylinders to a vehicle to deliver them to hospitals, at a factory, amid the coronavirus disease (COVID-19) spread, in Baghdad, Iraq June 29, 2020. REUTERS/Thaier al-Sudani

A worker wearing a mask inspects refilled oxygen cylinders before delivering them to hospitals, at a factory, amid the coronavirus disease (COVID-19) spread, in Baghdad, Iraq June 28, 2020. Picture taken June 28, 2020. REUTERS/Thaier al-Sudani

Workers wearing masks inspect refilled oxygen cylinders before delivering them to hospitals, at a factory, amid the coronavirus disease (COVID-19) spread, in Baghdad, Iraq June 28, 2020. Picture taken June 28, 2020. REUTERS/Thaier al-Sudani

Workers wearing masks check refilled oxygen cylinders before delivering them to hospitals, at a factory, amid the coronavirus disease (COVID-19) spread, in Baghdad, Iraq June 28, 2020. Picture taken June 28, 2020. REUTERS/Thaier al-Sudani

A worker wearing a mask inspects refilled oxygen cylinders before delivering them to hospitals, at a factory, amid the coronavirus disease (COVID-19) spread, in Baghdad, Iraq June 28, 2020. Picture taken June 28, 2020. REUTERS/Thaier al-Sudani

A worker wearing a mask inspects refilled oxygen cylinders before delivering them to hospitals, at a factory, amid the coronavirus disease (COVID-19) spread, in Baghdad, Iraq June 28, 2020. Picture taken June 28, 2020. REUTERS/Thaier al-Sudani

Workers wearing protective masks inspect refilled oxygen cylinders before delivering them to hospitals, at a factory, amid the coronavirus disease (COVID-19) spread, in Baghdad, Iraq June 29, 2020. REUTERS/Thaier al-Sudani

Refilled oxygen cylinders are seen before being delivered to hospitals, at a factory, amid the coronavirus disease (COVID-19) spread, in Baghdad, Iraq June 28, 2020. Picture taken June 28, 2020. REUTERS/Thaier al-Sudani

A worker wearing a mask checks a refilled oxygen cylinder before delivering it to a hospital, at a factory, amid the coronavirus disease (COVID-19) spread, in Baghdad, Iraq June 29, 2020. REUTERS/Thaier al-Sudani

A worker wearing a mask holds refilled oxygen cylinders before delivering them to hospitals, at a factory, amid the coronavirus disease (COVID-19) spread, in Baghdad, Iraq June 28, 2020. Picture taken June 28, 2020. REUTERS/Thaier al-Sudani

A worker wearing a mask inspects refilled oxygen cylinders before delivering them to hospitals, at a factory, amid the coronavirus disease (COVID-19) spread, in Baghdad, Iraq June 28, 2020. Picture taken June 28, 2020. REUTERS/Thaier al-Sudani

A worker wearing a mask inspects refilled oxygen cylinders before delivering them to hospitals, at a factory, amid the coronavirus disease (COVID-19) spread, in Baghdad, Iraq June 29, 2020. REUTERS/Thaier al-Sudani

Workers wearing protective masks inspect refilled oxygen cylinders before delivering them to hospitals, at a factory, amid the coronavirus disease (COVID-19) spread, in Baghdad, Iraq June 29, 2020. REUTERS/Thaier al-Sudani

Oxygen cylinders are seen inside a coach of a parked passenger train at a railway station which will be equipped for the care of the coronavirus disease (COVID-19) patients amidst the spread of the disease, in New Delhi, India, June 16, 2020. REUTERS/Anushree Fadnavis

A worker carries empty gas cylinders as he walks past a statue during the lockdown, amid the coronavirus disease (COVID-19) outbreak, in Ronda, southern Spain, April 22, 2020. REUTERS/Jon Nazca

Oxygen cylinders are pictured at an out-of-order oxygen plant of a hospital allocated for the coronavirus patients in preparation for any possible spread of the coronavirus disease (COVID-19), in Sanaa, Yemen April 8, 2020. Picture taken April 8, 2020. REUTERS/Khaled Abdullah

Nishant Pradhan uses a cooking gas cylinder as an alternative tool to workout during the eleventh day of the lockdown imposed by the government amid concerns about the spread of coronavirus disease (COVID-19) outbreak, in Kathmandu, Nepal April 3, 2020. REUTERS/Navesh Chitrakar

Nishant Pradhan uses cooking gas cylinders as an alternative tool to workout during the eleventh day of the lockdown imposed by the government amid concerns about the spread of coronavirus disease (COVID-19) outbreak, in Kathmandu, Nepal April 3, 2020. REUTERS/Navesh Chitrakar

Nishant Pradhan uses a cooking gas cylinder as an alternative tool to workout during the eleventh day of the lockdown imposed by the government amid concerns about the spread of coronavirus disease (COVID-19) outbreak, in Kathmandu, Nepal April 3, 2020. REUTERS/Navesh Chitrakar

Nishant Pradhan uses a cooking gas cylinder as an alternative tool to workout during the eleventh day of the lockdown imposed by the government amid concerns about the spread of coronavirus disease (COVID-19) outbreak, in Kathmandu, Nepal April 3, 2020. REUTERS/Navesh Chitrakar

Nishant Pradhan uses cooking gas cylinders as an alternative tool to workout during the eleventh day of the lockdown imposed by the government amid concerns about the spread of coronavirus disease (COVID-19) outbreak, in Kathmandu, Nepal April 3, 2020. REUTERS/Navesh Chitrakar

Bolivian farmers line up cooking gas cylinders as the country is under a nationwide quarantine to contain the coronavirus disease (COVID-19), in Guaqui near Titicaca lake, Bolivia March 30, 2020. REUTERS/David Mercado

Bolivian farmers line up cooking gas cylinders as the country is under a nationwide quarantine to contain the coronavirus disease (COVID-19), in Guaqui near Titicaca lake, Bolivia March 30, 2020. REUTERS/David Mercado

A man carries a gas cylinder as he waits to purchase cooking gas after India ordered a 21- day nationwide lockdown to limit the spreading of coronavirus disease (COVID-19) in Mumbai, India March 27, 2020. REUTERS/Francis Mascarenhas

A man carries a gas cylinder past a queue of people waiting to purchase cooking gas after India ordered a 21- day nationwide lockdown to limit the spreading of coronavirus disease (COVID-19) in Mumbai, India ,March 27, 2020. REUTERS/Francis Mascarenhas

People sit on top of empty cooking gas cylinders, waiting to buy the gas, amid fears of scarcity due to coronavirus disease (COVID-19) outbreak, in Kathmandu, Nepal March 23, 2020. REUTERS/Navesh Chitrakar

A girl pushes a cooking gas cylinder at a camp for people recently displaced by fighting in Yemen's northern province of al-Jawf between government forces and Houthis, in Marib, Yemen March 8, 2020. Picture taken March 8, 2020. REUTERS/Ali Owidha

A steelworker cleans a cylinder at the plant of German steel company Salzgitter AG in Salzgitter, Germany March 2, 2020. REUTERS/Fabian Bimmer TPX IMAGES OF THE DAY

A steelworker cleans a cylinder at the plant of German steel company Salzgitter AG in Salzgitter, Germany March 2, 2020. REUTERS/Fabian Bimmer

A customer checks the balance of her M-Gas cylinder inside her house at the Mukuru slum in Nairobi, Kenya January 29, 2020. Picture taken January 29, 2020. REUTERS/Njeri Mwangi

M-Gas cooking gas cylinders are arranged inside a container at a depot near the Mukuru slum in Nairobi, Kenya January 29, 2020. Picture taken January 29, 2020. REUTERS/Njeri Mwangi

Regina Mutuku, 52, checks the balance of her M-Gas cylinder inside her house at the Mukuru slum in Nairobi, Kenya January 29, 2020. Picture taken January 29, 2020. REUTERS/Njeri Mwangi

A worker arranges M-Gas cooking gas cylinders at a depot near the Mukuru slum in Nairobi, Kenya January 29, 2020. Picture taken January 29, 2020. REUTERS/Njeri Mwangi

Palestinians wait to fill cylinders with cooking gas in Rafah in the southern Gaza Strip January 21, 2020. REUTERS/Ibraheem Abu Mustafa

Palestinians wait to fill cylinders with cooking gas in Rafah in the southern Gaza Strip January 21, 2020. REUTERS/Ibraheem Abu Mustafa

Palestinians wait to fill cylinders with cooking gas in Rafah in the southern Gaza Strip January 21, 2020. REUTERS/Ibraheem Abu Mustafa

A Palestinian woman waits to fill cylinders with cooking gas in Rafah in the southern Gaza Strip January 21, 2020. REUTERS/Ibraheem Abu Mustafa

A Palestinian man waits to fill a cylinder with cooking gas in Rafah in the southern Gaza Strip January 21, 2020. REUTERS/Ibraheem Abu Mustafa

A Palestinian boy in a truck looks on as he waits to fill cylinders with cooking gas in Rafah in the southern Gaza Strip January 21, 2020. REUTERS/Ibraheem Abu Mustafa

A Palestinian man on a motorcycle waits to fill a cylinder with cooking gas in Rafah in the southern Gaza Strip January 21, 2020. REUTERS/Ibraheem Abu Mustafa

A demonstrator holds a mockup of a gas cylinder next to police officers during a protest against a government agreement to import natural gas from Israel, in Amman, Jordan, January 3, 2020. A sign on a model reads "The enemy's gas is occupation". REUTERS/Muhammad Hamed

A demonstrator holds a mockup of a gas cylinder during a protest against a government agreement to import natural gas from Israel, in Amman, Jordan, January 3, 2020. The model reads: "The enemy's gas is occupation". REUTERS/Muhammad Hamed