Mohammad, 2 months old, receives treatment in the intensive care unit of a hospital following an increase in the number of pneumonia cases in Kabul, Afghanistan, December 17, 2022. REUTERS/Ali Khara 

Mohammad, 2 months old, receives treatment in the intensive care unit of a hospital following an increase in the number of pneumonia cases in Kabul, Afghanistan, December 17, 2022. REUTERS/Ali Khara 

Neurological physiotherapist Guissela Rodriguez Palomino helps Pilar Redondo Arribas, 55, touch a ball with her impaired foot during treatment at Casaverde Neurological and Physical Rehabilitation Center in Navalcarnero, Spain, October 20, 2022. Redondo suffered a stroke last year which caused her to spend two weeks at a hospital intensive care unit. The stroke caused paralysis and spasticity in the right side of her body as well as aphasia, which affects her ability to communicate verbally. She does daily rehabilitation sessions to help improve her quality of life. "It's a difficult situation for the whole family. As a daughter, I've had to take on responsibilities before my time, I've had to mature. But when I see how hard she works and how she manages to stand on her feet during therapy, it gives me hope. My mother is very strong-willed" says Redondo's 17-year-old daughter Raquel. According to World Stroke Organisation, 1 out of 4 people over 25 will have a stroke in their lifetime. World Stroke Day is observed on October 29 to raise awareness about the high rates, the risk factors, and the signs of stroke to better prevent and support survivors. REUTERS/Susana Vera 

Pilar Redondo Arribas, 55, walks with a cane and the help of neurological physiotherapist Guissela Rodriguez Palomino during treatment at Casaverde Neurological and Physical Rehabilitation Center in Navalcarnero, Spain, October 20, 2022. Redondo suffered a stroke last year which caused her to spend two weeks at a hospital intensive care unit. The stroke caused paralysis and spasticity in the right side of her body as well as aphasia, which affects her ability to communicate verbally. She does daily rehabilitation sessions to help improve her quality of life. "It's a difficult situation for the whole family. As a daughter, I've had to take on responsibilities before my time, I've had to mature. But when I see how hard she works and how she manages to stand on her feet during therapy, it gives me hope. My mother is very strong-willed" says Redondo's 17-year-old daughter Raquel. According to World Stroke Organisation, 1 out of 4 people over 25 will have a stroke in their lifetime. World Stroke Day is observed on October 29 to raise awareness about the high rates, the risk factors, and the signs of stroke to better prevent and support survivors. REUTERS/Susana Vera 

Pilar Redondo Arribas, 55, reacts during treatment at Casaverde Neurological and Physical Rehabilitation Center in Navalcarnero, Spain, October 20, 2022. Redondo suffered a stroke last year which caused her to spend two weeks at a hospital intensive care unit. The stroke caused paralysis and spasticity in the right side of her body as well as aphasia, which affects her ability to communicate verbally. She does daily rehabilitation sessions to help improve her quality of life. "It’s a difficult situation for the whole family. As a daughter, I’ve had to take on responsibilities before my time, I’ve had to mature. But when I see how hard she works and how she manages to stand on her feet during therapy, it gives me hope. My mother is very strong-willed " says Redondo’s 17-year-old daughter Raquel. According to World Stroke Organisation, 1 out of 4 people over 25 will have a stroke in their lifetime. World Stroke Day is observed on October 29 to raise awareness about the high rates, the risk factors, and the signs of stroke to better prevent and support survivors. REUTERS/Susana Vera 

Pilar Redondo Arribas, 55, walks with a cane and the help of neurological physiotherapist Guissela Rodriguez Palomino during treatment at Casaverde Neurological and Physical Rehabilitation Center in Navalcarnero, Spain, October 20, 2022. Redondo suffered a stroke last year which caused her to spend two weeks at a hospital intensive care unit. The stroke caused paralysis and spasticity in the right side of her body as well as aphasia, which affects her ability to communicate verbally. She does daily rehabilitation sessions to help improve her quality of life. "It's a difficult situation for the whole family. As a daughter, I've had to take on responsibilities before my time, I've had to mature. But when I see how hard she works and how she manages to stand on her feet during therapy, it gives me hope. My mother is very strong-willed" says Redondo's 17-year-old daughter Raquel. According to World Stroke Organisation, 1 out of 4 people over 25 will have a stroke in their lifetime. World Stroke Day is observed on October 29 to raise awareness about the high rates, the risk factors, and the signs of stroke to better prevent and support survivors. REUTERS/Susana Vera 

Kate Porter, who first was sick with COVID-19 in March 2020, receives a dry-needling treatment from Dr. Thomas Mulroy for the intense and persistent pain she experiences as part of her long COVID symptoms, in Beverly, Massachusetts, U.S., September 6, 2022. Porter says "I had fevers every day for about 7 months straight. I had severe muscle weakness, shortness of breath, got diagnosed with conditions that people my age don't get diagnosed with, pericarditis with severe chest pain for 6 months, and then diagnosed with debilitating occipital and trigeminal neuralgia." REUTERS/Brian Snyder 

Kate Porter, who first was sick with COVID-19 in March 2020, receives a dry-needling treatment from Dr. Thomas Mulroy for the intense and persistent pain she experiences as part of her long COVID symptoms, in Beverly, Massachusetts, U.S., September 6, 2022. Porter says, "I had fevers every day for about 7 months straight. I had severe muscle weakness, shortness of breath, got diagnosed with conditions that people my age don't get diagnosed with, pericarditis with severe chest pain for 6 months, and then diagnosed with debilitating occipital and trigeminal neuralgia." REUTERS/Brian Snyder 

Kate Porter, who first was sick with COVID-19 in March 2020, stands in her kitchen after receiving a dry-needling treatment for the intense and persistent pain she experiences as part of her Long COVID symptoms, in Beverly, Massachusetts, U.S., September 6, 2022. Porter says "I had fevers every day for about 7 months straight. I had severe muscle weakness, shortness of breath, got diagnosed with conditions that people my age don't get diagnosed with, pericarditis with severe chest pain for 6 months, and then diagnosed with debilitating occipital and trigeminal neuralgia." REUTERS/Brian Snyder 

Kate Porter, who first was sick with COVID-19 in March 2020, stretches her neck after receiving a dry-needling treatment for the intense and persistent pain she experiences as part of her Long COVID symptoms, in Beverly, Massachusetts, U.S., September 6, 2022. Porter says "I had fevers every day for about 7 months straight. I had severe muscle weakness, shortness of breath, got diagnosed with conditions that people my age don't get diagnosed with, pericarditis with severe chest pain for 6 months, and then diagnosed with debilitating occipital and trigeminal neuralgia." REUTERS/Brian Snyder 

Kate Porter, who first was sick with COVID-19 in March 2020, wears a neck support after receiving a dry-needling treatment for the intense and persistent pain she experiences as part of her long COVID symptoms, in Beverly, Massachusetts, U.S., September 6, 2022. Porter says "I had fevers every day for about 7 months straight. I had severe muscle weakness, shortness of breath, got diagnosed with conditions that people my age don't get diagnosed with, pericarditis with severe chest pain for 6 months, and then diagnosed with debilitating occipital and trigeminal neuralgia." REUTERS/Brian Snyder 

Kate Porter, who first was sick with COVID-19 in March 2020, receives a dry-needling treatment from Dr. Thomas Mulroy for the intense and persistent pain she experiences as part of her long COVID symptoms, in Beverly, Massachusetts, U.S., September 6, 2022. Porter says "I had fevers every day for about 7 months straight. I had severe muscle weakness, shortness of breath, got diagnosed with conditions that people my age don't get diagnosed with, pericarditis with severe chest pain for 6 months, and then diagnosed with debilitating occipital and trigeminal neuralgia." REUTERS/Brian Snyder 

Kate Porter, who first was sick with COVID-19 in March 2020, rests on the floor and stretches her neck after receiving a dry-needling treatment for the intense and persistent pain she experiences as part of her Long COVID symptoms, in Beverly, Massachusetts, U.S., September 6, 2022. Porter says "I had fevers every day for about 7 months straight. I had severe muscle weakness, shortness of breath, got diagnosed with conditions that people my age don't get diagnosed with, pericarditis with severe chest pain for 6 months, and then diagnosed with debilitating occipital and trigeminal neuralgia." REUTERS/Brian Snyder 

Kate Porter, who first was sick with COVID-19 in March 2020, receives a dry-needling treatment from Dr. Thomas Mulroy for the intense and persistent pain she experiences as part of her long COVID symptoms, in Beverly, Massachusetts, U.S., September 6, 2022. Porter says "I had fevers every day for about 7 months straight. I had severe muscle weakness, shortness of breath, got diagnosed with conditions that people my age don't get diagnosed with, pericarditis with severe chest pain for 6 months, and then diagnosed with debilitating occipital and trigeminal neuralgia." REUTERS/Brian Snyder 

Kate Porter, who first was sick with COVID-19 in March 2020, leaves the doctors office after receiving a dry-needling treatment for the intense and persistent pain she experiences as part of her long COVID symptoms, in Beverly, Massachusetts, U.S., September 6, 2022. Porter says "I had fevers every day for about 7 months straight. I had severe muscle weakness, shortness of breath, got diagnosed with conditions that people my age don't get diagnosed with, pericarditis with severe chest pain for 6 months, and then diagnosed with debilitating occipital and trigeminal neuralgia." REUTERS/Brian Snyder 

Kate Porter, who first was sick with COVID-19 in March 2020, ices her neck after receiving a dry-needling treatment for the intense and persistent pain she experiences as part of her Long COVID symptoms, in Beverly, Massachusetts, U.S., September 6, 2022. Porter says "I had fevers every day for about 7 months straight. I had severe muscle weakness, shortness of breath, got diagnosed with conditions that people my age don't get diagnosed with, pericarditis with severe chest pain for 6 months, and then diagnosed with debilitating occipital and trigeminal neuralgia." REUTERS/Brian Snyder 

An intensive care nurse observes during the treatment of a patient suffering from the coronavirus disease (COVID-19) in the Intensive Care Unit (ICU) at Havelhoehe community hospital in Berlin, Germany, December 6, 2021. REUTERS/Fabrizio Bensch 

An a music therapist plays harp during treatment of patients suffering from the coronavirus disease (COVID-19) in the Intensive Care Unit (ICU) at Havelhoehe community hospital in Berlin, Germany, December 6, 2021. REUTERS/Fabrizio Bensch 

Members of the medical staff in protective suits treat a patient, on extracorporeal membrane oxygenation (ECMO) treatment, suffering from the coronavirus disease (COVID-19) in the Intensive Care Unit (ICU) at Havelhoehe community hospital in Berlin, Germany, December 6, 2021. REUTERS/Fabrizio Bensch 

Members of the medical staff in protective suits treat a patient, on extracorporeal membrane oxygenation (ECMO) treatment, suffering from the coronavirus disease (COVID-19) in the Intensive Care Unit (ICU) at Havelhoehe community hospital in Berlin, Germany, December 6, 2021. REUTERS/Fabrizio Bensch 

An a music therapist plays harp during treatment of patients suffering from the coronavirus disease (COVID-19) in the Intensive Care Unit (ICU) at Havelhoehe community hospital in Berlin, Germany, December 6, 2021. REUTERS/Fabrizio Bensch 

Members of the medical staff in protective suits treat a patient, on extracorporeal membrane oxygenation (ECMO) treatment, suffering from the coronavirus disease (COVID-19) in the Intensive Care Unit (ICU) at Havelhoehe Community Hospital in Berlin, Germany, December 6, 2021. REUTERS/Fabrizio Bensch 

A medical specialist attends to a patient suffering from the coronavirus disease (COVID-19) at the intensive care unit (ICU) of Toxicology and Sepsis clinic of the Riga East Clinical University Hospital in Riga, Latvia. Picture taken on October 29, 2021. REUTERS/Janis Laizans 

Medical specialists examine a patient suffering from the coronavirus disease (COVID-19) at the intensive care unit (ICU) of Toxicology and Sepsis clinic of the Riga East Clinical University Hospital in Riga, Latvia. Picture taken on October 29, 2021. REUTERS/Janis Laizans 

A medical specialist holds the hand of a patient suffering from the coronavirus disease (COVID-19) at the intensive care unit (ICU) of Toxicology and Sepsis clinic of the Riga East Clinical University Hospital in Riga, Latvia. Picture taken on October 29, 2021. REUTERS/Janis Laizans 

Medical specialists treat a patient suffering from the coronavirus disease (COVID-19) at the intensive care unit (ICU) of Toxicology and Sepsis clinic of the Riga East Clinical University Hospital in Riga, Latvia. Picture taken on October 29, 2021. REUTERS/Janis Laizans 

A medical specialist treats a patient suffering from the coronavirus disease (COVID-19) at the intensive care unit (ICU) of Toxicology and Sepsis clinic of the Riga East Clinical University Hospital in Riga, Latvia. Picture taken on October 29, 2021. REUTERS/Janis Laizans 

Medical specialists treat a patient suffering from the coronavirus disease (COVID-19) at the intensive care unit (ICU) of Toxicology and Sepsis clinic of the the Riga East Clinical University Hospital in Riga, Latvia. Picture taken on October 29, 2021. REUTERS/Janis Laizans 

A patient suffering from the coronavirus disease (COVID-19) receives medical treatment in the intensive care unit (ICU) of the City Clinical Hospital named after S.Botkin in Oryol, Russia October 26, 2021. REUTERS/Maxim Shemetov 

A patient suffering from the coronavirus disease (COVID-19) receives medical treatment in the Intensive Care Unit (ICU) of the City Clinical Hospital Number 52 in Moscow, Russia October 21, 2021. REUTERS/Maxim Shemetov 

A nurse checks the treatment for a patient suffering from coronavirus disease (COVID-19) in the intensive care unit (ICU) at the Clinical Center of Montenegro in Podgorica September 22, 2021. REUTERS/Stevo Vasiljevic 

A patient suffering from COVID-19 receives treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the Clinica Nueva El Lago, in Bogota, Colombia June 3, 2021. REUTERS/Luisa Gonzalez 

A patient suffering from COVID-19 receives treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the Clinica Nueva El Lago, in Bogota, Colombia June 3, 2021. REUTERS/Luisa Gonzalez 

A patient suffering from COVID-19 receives treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the Clinica Nueva El Lago, in Bogota, Colombia June 3, 2021. REUTERS/Luisa Gonzalez 

A patient suffering from COVID-19 receives treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the Clinica Nueva El Lago, in Bogota, Colombia June 3, 2021. REUTERS/Luisa Gonzalez 

The words including 'Positive' are seen on a board displaying the treatment record at the Intensive Care Unit (ICU) ward at St. Marianna University Yokohama Seibu Hospital where patients suffering from the coronavirus disease (COVID-19) are being treated in Yokohama, south of Tokyo, Japan May 25, 2021. Picture taken May 25, 2021. REUTERS/Issei Kato 

Patients suffering from the coronavirus disease (COVID-19) receive treatment inside the Intensive Care Unit (ICU) ward at the Government Institute of Medical Sciences (GIMS) hospital, in Greater Noida on the outskirts of New Delhi, India, May 21, 2021. REUTERS/Adnan Abidi 

A patient suffering from COVID-19 receives treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the "Klinikum Darmstadt" clinic in Darmstadt, Germany, May 20, 2021. REUTERS/Kai Pfaffenbach 

A patient suffering from COVID-19 receives treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the "Klinikum Darmstadt" clinic in Darmstadt, Germany, May 20, 2021. REUTERS/Kai Pfaffenbach 

A patient suffering from COVID-19 receives treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the "Klinikum Darmstadt" clinic in Darmstadt, Germany, May 20, 2021. REUTERS/Kai Pfaffenbach 

A patient suffering from COVID-19 receives treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the "Klinikum Darmstadt" clinic in Darmstadt, Germany, May 20, 2021. REUTERS/Kai Pfaffenbach 

A patient suffering from COVID-19 receives treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the "Klinikum Darmstadt" clinic in Darmstadt, Germany, May 20, 2021. REUTERS/Kai Pfaffenbach 

A patient suffering from COVID-19 receives treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the "Klinikum Darmstadt" clinic in Darmstadt, Germany, May 20, 2021. REUTERS/Kai Pfaffenbach 

A patient suffering from COVID-19 receives treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the "Klinikum Darmstadt" clinic in Darmstadt, Germany, May 20, 2021. REUTERS/Kai Pfaffenbach 

Patients suffering from COVID-19 receive treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the "Klinikum Darmstadt" clinic in Darmstadt, Germany, May 20, 2021. REUTERS/Kai Pfaffenbach 

Medical personnel talks as a patient suffering from COVID-19 receives treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the "Klinikum Darmstadt" clinic in Darmstadt, Germany, May 20, 2021. REUTERS/Kai Pfaffenbach 

A patient suffering from COVID-19 receives treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the "Klinikum Darmstadt" clinic in Darmstadt, Germany, May 20, 2021. REUTERS/Kai Pfaffenbach 

Patients suffering from COVID-19 receives treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the "Klinikum Darmstadt" clinic in Darmstadt, Germany, May 20, 2021. REUTERS/Kai Pfaffenbach 

A patient suffering from COVID-19 receives treatment at the coronavirus disease (COVID-19) Intensive Care Unit (ICU) of the "Klinikum Darmstadt" clinic in Darmstadt, Germany, May 20, 2021. REUTERS/Kai Pfaffenbach 

A nurse points to a PentraSorb CRP adsorber, which is connected to a device that pumps the blood plasma through the adsorber in specific cycles, which is the main part of the new CRP-Apherese treatment for a patient suffering from the coronavirus disease (COVID-19) in the Intensive Care Unit (ICU) at Havelhoehe community hospital in Berlin, Germany, April 9, 2021. REUTERS/Fabrizio Bensch 

A nurse in a protective suit treats a patient suffering from the coronavirus disease (COVID-19) with a new CRP-Apherese treatment in the Intensive Care Unit (ICU) at Havelhoehe community hospital in Berlin, Germany, April 9, 2021. REUTERS/Fabrizio Bensch 

A nurse in a protective suit treats a patient suffering from the coronavirus disease (COVID-19) with a new CRP-Apherese treatment in the Intensive Care Unit (ICU) at Havelhoehe community hospital in Berlin, Germany, April 9, 2021. REUTERS/Fabrizio Bensch 

A nurse points to a PentraSorb CRP adsorber, which is connected to a device that pumps the blood plasma through the adsorber in specific cycles, which is the main part of the new CRP-Apherese treatment for a patient suffering from the coronavirus disease (COVID-19) in the Intensive Care Unit (ICU) at Havelhoehe community hospital in Berlin, Germany, April 9, 2021. REUTERS/Fabrizio Bensch 

A nurse watches out of a treatment room as she treats a patient suffering from the coronavirus disease (COVID-19) in the Intensive Care Unit (ICU) at Havelhoehe community hospital in Berlin, Germany, April 9, 2021. REUTERS/Fabrizio Bensch 

An empty bed is pictured in a treatment room for patients suffering from the coronavirus disease (COVID-19) in the Intensive Care Unit (ICU) at Havelhoehe community hospital in Berlin, Germany, April 9, 2021. REUTERS/Fabrizio Bensch 

A nurse looks out of a treatment room in which she is treating a patient suffering from the coronavirus disease (COVID-19) in the Intensive Care Unit (ICU) at Havelhoehe community hospital in Berlin, Germany, April 9, 2021. REUTERS/Fabrizio Bensch 

A nurse helps with treatment of a COVID-19 patient in the ICU (Intensive Care Unit) at Milton Keynes University Hospital, amid the spread of the coronavirus disease (COVID-19) pandemic, Milton Keynes, Britain, January 20, 2021. Picture taken January 20, 2021. REUTERS/Toby Melville 

A COVID-19 patient receives treatment in the ICU (Intensive Care Unit) at Milton Keynes University Hospital, amid the spread of the coronavirus disease (COVID-19) pandemic, Milton Keynes, Britain, January 20, 2021. Picture taken January 20, 2021. REUTERS/Toby Melville 

A COVID-19 patient receives treatment in the ICU (Intensive Care Unit) at Milton Keynes University Hospital, amid the spread of the coronavirus disease (COVID-19) pandemic, Milton Keynes, Britain, January 20, 2021. Picture taken January 20, 2021. REUTERS/Toby Melville 

General view of the Intensive Care Unit (ICU) during a fire drill to evacuate the Corona Treatment Center Jaffestrasse, a makeshift hospital currently without patients, amid the coronavirus disease (COVID-19) outbreak in Berlin, Germany, November 26, 2020. REUTERS/Fabrizio Bensch