Patients suffering from the coronavirus disease (COVID-19) get treatment at the casualty ward in Lok Nayak Jai Prakash (LNJP) hospital, amidst the spread of the disease in New Delhi, India April 15, 2021. Gasping for air, two men wearing oxygen masks share a bed in a government hospital in India's capital New Delhi, victims of the country's growing COVID-19 crisis. REUTERS/Danish Siddiqui

Patients suffering from the coronavirus disease (COVID-19) get treatment at the casualty ward in Lok Nayak Jai Prakash (LNJP) hospital, amidst the spread of the disease in New Delhi, India April 15, 2021. Daily infections in India crossed 200,000 on Thursday (April 15), according to official data, making it the highest anywhere in the world. REUTERS/Danish Siddiqui

Patients suffering from the coronavirus disease (COVID-19) get treatment at the casualty ward in Lok Nayak Jai Prakash (LNJP) hospital, amidst the spread of the disease in New Delhi, India April 15, 2021. This is the reality inside a government hospital in India's capital New Delhi battling the country's growing COVID-19 crisis. REUTERS/Danish Siddiqui

Patients suffering from the coronavirus disease (COVID-19) get treatment at the casualty ward in Lok Nayak Jai Prakash (LNJP) hospital, amidst the spread of the disease in New Delhi, India April 15, 2021. At Lok Nayak Jai Prakash Narayan Hospital, one of India's largest COVID-only facilities with more than 1,500 beds, a stream of ambulances ferried patients to the overflowing casualty ward. REUTERS/Danish Siddiqui

Patients suffering from the coronavirus disease (COVID-19) get treatment at the casualty ward in Lok Nayak Jai Prakash (LNJP) hospital, amidst the spread of the disease in New Delhi, India April 15, 2021. REUTERS/Danish Siddiqui