Figure 3.

Amelioration of disease symptoms in subjects with cell culture–confirmed influenza infection. Symptoms are rated as severe (red), moderate (orange), or mild (green). ^aFour placebo recipients had cough for >20 days. Three were rated as moderate (31, 35, and 51 days duration), and 1 was rated as severe (22 days duration). ^bOne recipient of Vero cell culture–derived influenza vaccine had oropharyngeal pain for 31 days, rated moderate. Abbreviation: VCIV, Vero cell culture--derived influenza vaccine.