Influenza and RSV active periods by week number (weeks duration)
| Influenza (A and B) | RSV | ||||
|---|---|---|---|---|---|
| Year | Broad definition | Narrow definition | Year | Broad definition | Narrow definition |
| 1994/95 | 1–14 (14) | 4–10 (7) | 1994/95 | 45–4 (12) | 49–1 (5) |
| 1995/96 | 45–3 (11) | 47–1 (7) | 1995/96 | 46–6 (13) | 50–4 (7) |
| 1996/97 | 49–9 (13) | 2–6 (5) | 1996/97 | 47–9 (15) | 47–1 (7) |
| 1997/98 | 6–14 (9) | 9–15 (7) | 1997/98 | 44–3 (12) | 48–52 (5) |
| 1998/99 | 51–7 (9) | 51–5 (7) | 1998/99 | 45–3 (11) | 47–51 (5) |
| 1999/00 | 50–5 (8) | 51–3 (5) | 1999/00 | 44–1 (10) | 46–50 (5) |