Of the 15 critically ill patients, 2 survived (Table 1 ). The male:female ratio was 6:9, the age range being 13-53 years. Associated co-morbidities were present in 1/2 surviving and 7/13 fatal patients. Importantly, radiological findings showed that all the fatal cases had $3/6 lung zonal involvement and required ventilator assistance. Both the surviving patients initially needed nasal oxygen but were put on ventilator subsequently. The patients were either treated with Osletamivir alone (n = 7) or in combination with Zanamivir (n = 8). From the endotracheal tubes of 4 patients Acenotobacter was isolated. None of the 26 mild cases had recognizable risk factors. S21, a 36 year female suffering from severe seasonal influenza survived after 39 days of hospitalization.