Table 2.
Etiology of Influenza‐like illness (ILI) cases by age group, 2007–2008*
| Virus identified | Age group in years | Total | |||||
|---|---|---|---|---|---|---|---|
| 0–2 | 3–4 | 5–17 | 18–49 | 50–64 | >65 | ||
| Influenza A | 4 (3%) | 4 (10%) | 18 (12%) | 33 (17%) | 2 (11%) | 2 (33%) | 63 (12%) |
| Influenza B | 7 (6%) | 5 (12%) | 38 (26%) | 41 (21%) | 1 (6%) | 0 (0%) | 92 (17%) |
| Entero/Rhinovirus | 48 (38%) | 12 (29%) | 23 (16%) | 18 (9%) | 2 (11%) | 0 (0%) | 103 (20%) |
| Metapneumovirus | 11 (13%) | 2 (5%) | 3 (2%) | 3 (2%) | 0 (0%) | 0 (0%) | 19 (4%) |
| Parainfluenza (1–4) | 3 (2%) | 2 (7%) | 4 (3%) | 3 (2%) | 0 (0%) | 0 (0%) | 12 (2%) |
| RSV (A and B) | 4 (4%) | 3 (10%) | 0 (0%) | 1 (1%) | 0 (0%) | 1 (17%) | 9 (2%) |
| Adenovirus | 3 (3%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) | 3 (1%) |
| Coronavirus | 1 (1%) | 0 (0%) | 0 (0%) | 2 (1%) | 0 (0%) | 0 (0%) | 3 (1%) |
| Negative | 39 (31%) | 12 (29%) | 60 (41%) | 95 (48%) | 13 (72%) | 3 (50%) | 222 (42%) |
| Total | 127 (100%) | 42 (100%) | 151 (100%) | 199 (100%) | 18 (100%) | 6 (100%) | 543 (100%) |
*Column total exceeds the total number of patients enrolled (n = 526) due to mixed infections with two pathogens in 17 patients.