Chart showing number of people waiting for hospital treatment in England from 2015 to August 2021.

Makeshift beds for coronavirus disease (COVID-19) patients stand in the atrium of Pauls Stradins Clinical University Hospital in Riga, Latvia October 20, 2021. REUTERS/Janis Laizans

Makeshift beds for coronavirus disease (COVID-19) patients stand in the atrium of Pauls Stradins Clinical University Hospital in Riga, Latvia October 20, 2021. REUTERS/Janis Laizans

People walk in front of makeshift beds for coronavirus disease (COVID-19) patients in the atrium of Pauls Stradins Clinical University Hospital in Riga, Latvia October 20, 2021. REUTERS/Janis Laizans

Makeshift beds for coronavirus disease (COVID-19) patients stand in the atrium of Pauls Stradins Clinical University Hospital in Riga, Latvia October 20, 2021. REUTERS/Janis Laizans

A man views the National Covid Memorial Wall, a dedication of thousands of hand painted hearts and messages commemorating victims of the COVID-19 pandemic, with a Covid vaccination centre at St Thomas' Hospital seen behind, in London, Britain, October 20, 2021. REUTERS/Toby Melville

A street cleaner wearing a protective face mask works in the grounds of St Thomas' Hospital, beside the National Covid Memorial Wall, a dedication of thousands of hand painted hearts and messages commemorating victims of the COVID-19 pandemic, in London, Britain, October 20, 2021. REUTERS/Toby Melville

A child receives a dose of the Pfizer-BioNTech coronavirus disease (COVID-19) vaccine during a vaccination program for minors between the ages of 12 to 17 with underlying medical conditions or disability at a hospital in Ciudad Juarez, Mexico October 19, 2021. REUTERS/Jose Luis Gonzalez

Gabriel, 12, is led by his aunt Tere Robles to receive a dose of the Pfizer-BioNTech coronavirus disease (COVID-19) vaccine during a vaccination program for minors between the ages of 12 to 17 with underlying medical conditions or disability at a hospital in Ciudad Juarez, Mexico October 19, 2021. REUTERS/Jose Luis Gonzalez

Brian Arizpe, 14, walks with the help of crutches next to his mother after receiving a dose of the Pfizer-BioNTech coronavirus disease (COVID-19) vaccine during a vaccination program for minors between the ages of 12 to 17 with underlying medical conditions or disability at a hospital in Ciudad Juarez, Mexico October 19, 2021. REUTERS/Jose Luis Gonzalez

Velia Siqueiros and her 15-year-old son Daniel Siqueiros interact with a health worker after he received a dose of the Pfizer-BioNTech coronavirus disease (COVID-19) vaccine vaccine during a vaccination program for minors between the ages of 12 to 17 with underlying medical conditions or disability at a hospital in Ciudad Juarez, Mexico October 19, 2021. REUTERS/Jose Luis Gonzalez

Children are seen near a sign mentioning the Pfizer-BioNTech coronavirus disease (COVID-19) vaccine during a vaccination program for minors between the ages of 12 to 17 with underlying medical conditions or disability at a hospital in Ciudad Juarez, Mexico October 19, 2021. REUTERS/Jose Luis Gonzalez

A healthcare worker prepares a dose of the Pfizer-BioNTech coronavirus disease (COVID-19) vaccine during a vaccination program for minors between the ages of 12 to 17 with underlying medical conditions or disability at a hospital in Ciudad Juarez, Mexico October 19, 2021. REUTERS/Jose Luis Gonzalez

A child receives a dose of the Pfizer-BioNTech coronavirus disease (COVID-19) vaccine during a vaccination program for minors between the ages of 12 to 17 with underlying medical conditions or disability at a hospital in Ciudad Juarez, Mexico October 19, 2021. REUTERS/Jose Luis Gonzalez

A child wears a label showing the time they received a dose of the Pfizer-BioNTech coronavirus disease (COVID-19) vaccine during a vaccination program for minors between the ages of 12 to 17 with underlying medical conditions or disability at a hospital in Ciudad Juarez, Mexico October 19, 2021. REUTERS/Jose Luis Gonzalez

A child receives a dose of the Pfizer-BioNTech coronavirus disease (COVID-19) vaccine during a vaccination program for minors between the ages of 12 to 17 with underlying medical conditions or disability at a hospital in Ciudad Juarez, Mexico October 19, 2021. REUTERS/Jose Luis Gonzalez

People walk in front of the Pauls Stradins Clinical University Hospital main entrance in Riga, Latvia October 19, 2021. REUTERS/Ints Kalnins

People walk in front of the Pauls Stradins Clinical University Hospital main entrance in Riga, Latvia October 19, 2021. REUTERS/Ints Kalnins

People walk past Pauls Stradins Clinical University Hospital main entrance in Riga, Latvia October 19, 2021. REUTERS/Ints Kalnins

Medical specialists assist a patient outside a hospital for people infected with the coronavirus disease (COVID-19) in Kyiv, Ukraine October 18, 2021. REUTERS/Gleb Garanich

Medical specialists assist a patient outside a hospital for people infected with the coronavirus disease (COVID-19) in Kyiv, Ukraine October 18, 2021. REUTERS/Gleb Garanich

Medical personnel of ambulances with COVID-19 patients and a patient's relative wait in the queue at a hospital for people infected with coronavirus disease in Kyiv, Ukraine October 18, 2021. REUTERS/Gleb Garanich

A health worker stands next to an ambulance carrying a COVID-19 patient as they wait in the queue at a hospital for people infected with coronavirus disease in Kyiv, Ukraine October 18, 2021. REUTERS/Gleb Garanich

A doctor assists a patient outside a hospital for people infected with the coronavirus disease (COVID-19) in Kyiv, Ukraine October 18, 2021. REUTERS/Gleb Garanich

A health worker stands near an ambulance carring a COVID-19 patient, as they wait in the queue at a hospital for people infected with the coronavirus disease in Kyiv, Ukraine October 18, 2021. REUTERS/Gleb Garanich TPX IMAGES OF THE DAY

A medical specialist assists a patient outside a hospital for people infected with the coronavirus disease (COVID-19) in Kyiv, Ukraine October 18, 2021. REUTERS/Gleb Garanich

A security personnel stands guard at the University of California Irvine Medical Center after it was announced that the former U.S. President Bill Clinton was admitted to the hospital in Orange, California, U.S. October 15, 2021. REUTERS/Ringo Chiu

Members of media wait outside University of California Irvine Medical Center after it was announced that former U.S. President Bill Clinton was admitted to the hospital in Orange, California, U.S. October 15, 2021. REUTERS/Ringo Chiu

A police personnel stands at an entrance of the University of California Irvine Douglas Hospital, after former U.S. President Bill Clinton was admitted to the UCI Medical Center, in Orange, California, U.S. October 14, 2021. REUTERS/David Swanson

The motorcade of former U.S. President Bill Clinton wait at the University of California Irvine Douglas Hospital, after Clinton was admitted to the UCI Medical Center, in Orange, California, U.S. October 14, 2021. REUTERS/David Swanson

The motorcade of former U.S. President Bill Clinton wait at the University of California Irvine Douglas Hospital, after Clinton was admitted to the UCI Medical Center, in Orange, California, U.S. October 14, 2021. REUTERS/David Swanson

A view shows the sign of the University of California Irvine Douglas Hospital, after it was announced that former U.S. President Bill Clinton has been admitted to the UCI Medical Center, in Orange, California, U.S. October 14, 2021. REUTERS/David Swanson

A view shows the exterior of the University of California Irvine Douglas Hospital, after it was announced that former U.S. President Bill Clinton has been admitted to the UCI Medical Center, in Orange, California, U.S. October 14, 2021. REUTERS/David Swanson

French President Emmanuel Macron plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron reacts as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron runs for the ball as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier TPX IMAGES OF THE DAY

French President Emmanuel Macron trains with soccer player Marcel Desailly before a charity soccer match with the Varietes Club de France soccer team against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron trains before a charity soccer match with the Varietes Club de France soccer team and against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron runs for the ball as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron kicks the ball as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron reacts as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron reacts as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron runs for the ball as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron reacts as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron reacts as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron reacts as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron reacts as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron reacts as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron kicks the ball as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron reacts as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron runs for the ball as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron reacts as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron kicks the ball as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron reacts as he plays with the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

Soccer players of the Varietes Club de France team Arsence Wenger, Christian Karembeu, Alain Giresse and French President Emmanuel Macron react during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron plays with Arsene Wenger of the Varietes Club de France soccer team during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

Christian Karembeu of the Varietes Club de France soccer team plays during a charity soccer match against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron trains before a charity soccer match with the Varietes Club de France soccer team and against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier

French President Emmanuel Macron trains before a charity soccer match with the Varietes Club de France soccer team and against a team of Poissy-Saint-Germain-en-Laye hospital medical staff at the Leo Lagrange stadium in Poissy, France, October 14, 2021. REUTERS/Sarah Meyssonnier