Table 3 Overall and age-specific final attack rates for pH1N1 for different vaccination scenarios for R 0 1.4 and an 8-week vaccine campaign length.
Vaccination start date | Vaccination strategy | Attack rate,% (% reduction vs. None) | ||||
|---|---|---|---|---|---|---|
|  |  | All ages | 0-4 | 5-17 | 18-54 | ≥55 |
None | None | 48.3 | 35.1 | 78 | 47.5 | 24.1 |
24-Aug | AC | 8.0 (83) | 4.6 (87) | 12.0 (85) | 8.9 (81) | 3.2 (87) |
| Â | UC | 10.1 (79) | 6.7 (81) | 20.0 (74) | 8.8 (81) | 4.0 (83) |
| Â | PC | 6.1 (87) | 7.8 (78) | 1.1 (99) | 8.5 (82) | 5.0 (79) |
| Â | PC+ | 4.3 (91) | 5.0 (86) | 0.9 (99) | 6.2 (87) | 3.2 (87) |
28-Sep | AC | 25.5 (47) | 16.0 (54) | 42.3 (46) | 25.7 (46) | 10.9 (55) |
| Â | UC | 26.8 (44) | 18.3 (48) | 49.2 (37) | 24.7 (48) | 11.7 (51) |
| Â | PC | 14.1 (71) | 14.0 (60) | 9.4 (88) | 18.3 (62) | 9.5 (61) |
| Â | PC+ | 12.1 (75) | 12.3 (65) | 7.7 (90) | 15.9 (67) | 8.2 (66) |
26-Oct | AC | 42.0 (13) | 28.9 (18) | 69.8 (10) | 41.1 (13) | 19.7 (18) |
| Â | UC | 42.0 (13) | 29.8 (15) | 71.5 (8) | 40.3 (15) | 19.9 (17) |
| Â | PC | 37.7 (22) | 29.3 (16) | 54.1 (31) | 39.3 (17) | 20.1 (17) |
| Â | PC+ | 36.4 (25) | 28.5 (19) | 52.0 (33) | 38.0 (20) | 19.5 (19) |
23-Nov | AC | 47.4 (2) | 34.1 (3) | 77.1 (1) | 46.5 (2) | 23.4 (3) |
| Â | UC | 47.4 (2) | 34.2 (2) | 77.2 (1) | 46.4 (2) | 23.4 (3) |
| Â | PC | 47.0 (3) | 34.4 (2) | 75.2 (4) | 46.5 (2) | 23.6 (2) |
| Â | PC+ | 46.8 (3) | 34.3 (2) | 74.9 (4) | 46.3 (3) | 23.5 (2) |