Table. Seroconversion and respiratory symptoms due to influenza infection and vaccination status among U.K. pilgrims.
| Influenza vaccination in autumn 2002 | Seroconversion |
Respiratory symptoms |
||
|---|---|---|---|---|
| Yes | No | Yes | No | |
| Vaccinated | 9 | 21 | 23 | 7 |
| Nonvaccinated |
35 |
50 |
70 |
15 |
| Total | 44 | 71 | 93 | 22 |