Table 2 Summary of influenza seasons during 2015–2024, Hong Kong
Influenza season | Starts date | End date | Onset seasona | Duration in weeks | Circulating subtype(s) | % coinfection (95% confidence interval) |
|---|---|---|---|---|---|---|
2014/15 | 01-Jan-15 | 11-Apr-15 | Winter | 14.3 | H3 | 18.9 (12.4–27.5) |
2015 | 24-May-15 | 25-Jul-15 | Spring | 8.9 | H3 | 12.9 (5.6–25.4) |
2015/16 | 31-Jan-16 | 07-May-16 | Winter | 13.9 | H1, B | 14.6 (9.3–22.0) |
2016 | 11-Sep-16 | 15-Oct-16 | Autumn | 4.9 | H3 | 22.9 (11.4–41.0) |
2017 | 23-Apr-17 | 19-Aug-17 | Spring | 16.9 | H3 | 22.2 (15.4–30.8) |
2017/18 | 24-Dec-17 | 24-Mar-18 | Winter | 12.9 | B | 20.1 (15.0–26.3) |
2018/19 | 09-Dec-18 | 06-Apr-19 | Winter | 16.9 | H1 | 18.4 (13.2–24.9) |
2019 | 16-Jun-19 | 20-Jul-19 | Summer | 4.9 | H1, H3, B | 10.2 (3.3–23.8) |
2019/20 | 22-Dec-19 | 01-Feb-20 | Winter | 5.9 | H1 | 13.4 (7.1–22.9) |
2023 | 26-Mar-23 | 20-May-23 | Spring | 7.9 | H1 | 20.7 (12.3–32.7) |
2023 | 02-Jul-23 | 28-Oct-23 | Summer | 16.9 | H3 | 16.3 (11.2–23.1) |
2023/24 | 10-Dec-23 | 27-Jul-24 | Winter | 32.9 | H3, H1 | 14.5 (11.0–18.7) |