The median time to resolution of illness in the 541 enrolled patients was 3. Sum of the severity of the seven day 0 influenza symptoms (feverishness, nasal stuffiness, sore throat, cough, muscle aches, tiredness-fatigue, and headache) using a four-point scale [2, 14] . b The score is expressed as a percentage of the maximal score of 21. (Tables 2  and 3 ). Other clinical outcomes showed similar trends (Tables 2, 3 , and S3).