A nurse takes care of one of the newborn nonuplets, lying in an incubator, at the private clinic of Ain Borja in Casablanca, Morocco May 5, 2021. REUTERS/Youssef Boudlal

A nurse takes care of one of the newborn nonuplets, lying in an incubator, at the private clinic of Ain Borja in Casablanca, Morocco May 5, 2021. REUTERS/Youssef Boudlal

A migrant walks to a Red Cross tent to be cared for by doctors, in the port of Arguineguin, on the island of Gran Canaria, Spain May 5, 2021. REUTERS/Borja Suarez

Beds are seen inside a Gurudwara (Sikh Temple) converted into a coronavirus disease (COVID-19) care facility amidst the spread of the COVID-19 in New Delhi, India May 5, 2021. REUTERS/Adnan Abidi TPX IMAGES OF THE DAY

Beds are seen inside a Gurudwara (Sikh Temple) converted into a coronavirus disease (COVID-19) care facility amidst the spread of the COVID-19 in New Delhi, India May 5, 2021. REUTERS/Adnan Abidi

Beds are seen inside a Gurudwara (Sikh Temple) converted into a coronavirus disease (COVID-19) care facility amidst the spread of the COVID-19 in New Delhi, India May 5, 2021. REUTERS/Adnan Abidi

A COVID-19 patient connected to a ventilator tube in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A COVID-19 patient connected to a ventilator tube in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker adjusts medical equipment in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease (COVID-19) pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

Healthcare workers in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease (COVID-19) pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A ventilator displays vital signs of a patient in the COVID-19 Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

Healthcare workers in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease (COVID-19) pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker provides care for a COVID-19 patient in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker provides care for a COVID-19 patient in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

Healthcare workers adjust medical equipment in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease (COVID-19) pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker looks at a COVID-19 patient's medical notes in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

Healthcare workers in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease (COVID-19) pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker provides care for a COVID-19 patient in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

Healthcare workers in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease (COVID-19) pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker provides care for a COVID-19 patient in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

Healthcare workers in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease (COVID-19) pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker provides care for a COVID-19 patient in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker provides care for a COVID-19 patient in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker adjusts medical equipment in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease (COVID-19) pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

GlaxoSmithKline's (GSK) drug, Augmentin, is seen in the COVID-19 Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A stethoscope is seen in the COVID-19 Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker looks at a COVID-19 patient's medical notes in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker provides care for a COVID-19 patient in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker provides care for a COVID-19 patient in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

Arrow's drug, Omeprazole, is seen in the COVID-19 Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker provides care for a COVID-19 patient in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker provides care for a COVID-19 patient in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker adjusts medical equipment in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease (COVID-19) pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker provides care for a COVID-19 patient in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A healthcare worker looks at a COVID-19 patient's medical notes in the Intensive Care Unit (ICU) at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

A sign at the Centre Cardiologique du Nord private hospital in Saint-Denis, near Paris, amid the coronavirus disease (COVID-19) pandemic in France, May 4, 2021. REUTERS/Benoit Tessier

Healthcare workers wearing personal protective equipment (PPE) stand outside a donning area at a COVID-19 care facility, amidst the spread of the coronavirus disease (COVID-19) in Mumbai, India, May 4, 2021. REUTERS/Niharika Kulkarni

Healthcare workers and relatives carry a woman from an ambulance for treatment at a COVID-19 care facility, amidst the spread of the coronavirus disease (COVID-19) in Mumbai, India, May 4, 2021. REUTERS/Niharika Kulkarni

A migrant walks to a Red Cross tent to be cared for, in the port of Arguineguin, in the southern part of the island of Gran Canaria, Spain May 3, 2021. REUTERS/Borja Suarez

Members of an Emergency Mobile Care Service (SAMU) team take a couple from the ambulance to an UPA (Emergency Service Unit) to be treated for the symptoms of the coronavirus disease (COVID-19), in Sao Paulo, Brazil May 3, 2021. REUTERS/Amanda Perobelli

Couple Ricardo Rodrigues and Sueli Paulino stop to catch their breath after walking up the stairs as doctor Bruna Soares Leite, a member of an Emergency Mobile Care Service (SAMU) team, talks to them before they are taken to a UPA (Emergency Service Unit) to be treated for the symptoms of the coronavirus disease (COVID-19), in Sao Paulo, Brazil May 3, 2021. REUTERS/Amanda Perobelli

Sueli Paulino, 42, catches her breath while doctor Bruna Soares Leite, a member of an Emergency Mobile Care Service (SAMU) team, illuminates the stairs as Sueli is taken to a UPA (Emergency Service Unit) to be treated for the symptoms of the coronavirus disease (COVID-19), in Sao Paulo, Brazil May 3, 2021. REUTERS/Amanda Perobelli

Nurse Elisangela Nicolette, a member of an Emergency Mobile Care Service (SAMU) team, measures the blood pressure of patient Ricardo Rodrigues, 42, suspected to have the coronavirus disease (COVID-19), as doctor Bruna Soares Leite takes notes, in Sao Paulo, Brazil May 3, 2021. REUTERS/Amanda Perobelli

Sueli Paulino, 42, stops to catch her breath while doctor Bruna Soares Leite, a member of an Emergency Mobile Care Service (SAMU) team, follows her as she is taken to a UPA (Emergency Service Unit) to be treated for the symptoms of the coronavirus disease (COVID-19), in Sao Paulo, Brazil May 3, 2021. REUTERS/Amanda Perobelli

Doctor Bruna Soares Leite, a member of an Emergency Mobile Care Service (SAMU) team, carries an oxygen cylinder as she walks down the stairs to treat a couple suffering from the coronavirus disease (COVID-19) in Sao Paulo, Brazil May 3, 2021. REUTERS/Amanda Perobelli

Patients of a centre providing medical, rehabilitation and nursing care to elderly people hold candles during the Holy Fire ceremony on the eve of Orthodox Easter in Stavropol, Russia May 1, 2021. REUTERS/Eduard Korniyenko

People carry a banner reading "enough savings in care and education" during a left-wing protest ahead of May Day demonstrations in Berlin, Germany, April 30, 2021. REUTERS/Christian Mang

Labourers build a temporary COVID-19 care facility, at Ramlila grounds, amidst the spread of the coronavirus disease in New Delhi, India, April 30, 2021. REUTERS/Adnan Abidi

Labourers build a temporary COVID-19 care facility, at Ramlila grounds, amidst the spread of the coronavirus disease in New Delhi, India, April 30, 2021. REUTERS/Adnan Abidi

Labourers sit on a crane as a temporary COVID-19 care facility is built, at Ramlila grounds, amidst the spread of the coronavirus disease in New Delhi, India, April 30, 2021. REUTERS/Adnan Abidi

A police officer walks past the construction site of a temporary COVID-19 care facility, at Ramlila grounds, amidst the spread of the coronavirus disease in New Delhi, India, April 30, 2021. REUTERS/Adnan Abidi

A member of the medical staff holds the hand of a patient at the intensive care unit (ICU) of the Sotiria hospital, amid the coronavirus disease (COVID-19) pandemic, in Athens, Greece, April 29, 2021. REUTERS/Giorgos Moutafis

Nurse Asimina Matsouka wears her personal protective equipment at the intensive care unit (ICU) of the Sotiria hospital, amid the coronavirus disease (COVID-19) pandemic, in Athens, Greece, April 29, 2021. REUTERS/Giorgos Moutafis

Intensivist Kostis Pontikis hangs his stethoscope around his neck at the intensive care unit (ICU) of the Sotiria hospital, amid the coronavirus disease (COVID-19) pandemic, in Athens, Greece, April 29, 2021. REUTERS/Giorgos Moutafis

Members of the medical staff treat a patient at the intensive care unit (ICU) of the Sotiria hospital, amid the coronavirus disease (COVID-19) pandemic, in Athens, Greece, April 29, 2021. REUTERS/Giorgos Moutafis

Nurse Violetta Klossa wears her personal protective equipment at the intensive care unit (ICU) of the Sotiria hospital, amid the coronavirus disease (COVID-19) pandemic, in Athens, Greece, April 29, 2021. REUTERS/Giorgos Moutafis

Members of the medical staff treat a patient at the intensive care unit (ICU) of the Sotiria hospital, amid the coronavirus disease (COVID-19) pandemic, in Athens, Greece, April 29, 2021. REUTERS/Giorgos Moutafis

Medical staff perform a tracheostomy on a patient at the intensive care unit (ICU) of the Sotiria hospital, amid the coronavirus disease (COVID-19) pandemic, in Athens, Greece, April 29, 2021. REUTERS/Giorgos Moutafis

Members of the medical staff treat a patient at the intensive care unit (ICU) of the Sotiria hospital, amid the coronavirus disease (COVID-19) pandemic, in Athens, Greece, April 29, 2021. REUTERS/Giorgos Moutafis