| Healthy volunteer | Healthy volunteer |
---|---|---|
 | Saline controls (n = 7) | LAIV (n = 10) |
Age, mean (range) | 21.3 (18–25) years | 23.8 (18–32) years |
Gender (% female) | 23.5Â % | 29.4Â % |
Student (%) | 100Â % | 70Â % |
Nose-picking | ||
 Never | 14.3 % | 20 % |
 Weekly | 71.4 % | 50 % |
 Daily | 14.3 % | 30 % |