Vaccination for healthcare workers has been going on for over four months. (File) New Delhi: The Indian Medical Association (IMA) had recently said that 244 doctors have died of COVID-19 since the second wave of coronavirus began in April first week in the country. However, only seven of these doctors had been fully vaccinated against the virus. Now Max Healthcare, among the most prominent private hospital chains across India, has stated on the basis of their study that there is no doubt that double vaccine doses do work and save lives. Across Max hospitals, 13,965 staff members have received both doses of the Covid vaccine and only 6 per cent of them have been infected. Out of these, nine out of every 10 patients recovered at home while one out of every 100 required hospitalisation and only one death was recorded.