Ohio Flu Activity
The Ohio Department of Health tracks seasonal influenza activity on a weekly basis throughout the year. ODH monitors circulating flu viruses and other related data sources and provides weekly summaries of influenza activity from October (Week 40) through May (Week 20). The first week of the new calendar year is indicated by "Week 1."
Current Activity
2022-2023 Flu Season
2022
| Week 40 | Week 45 | Week 50 | ||
| Week 41 | Week 46 | Week 51 | ||
| Week 42 | Week 47 | Week 52 | ||
| Week 43 | Week 48 | |||
| Week 44 | Week 49 |
2023
| Week 1 | Week 8 | Week 15 | ||
| Week 2 | Week 9 | Week 16 | ||
| Week 3 | Week 10 | Week 17 | ||
| Week 4 | Week 11 | Week 18 | ||
| Week 5 | Week 12 | Week 19 | ||
| Week 6 | Week 13 | Week 20* | ||
| Week 7 | Week 14 |
* This will be the Final Weekly Report of the 2021-2022 influenza season.
2021-2022
2021
| Week 40 | Week 45 | Week 50 | ||
| Week 41 | Week 46 | Week 51 | ||
| Week 42 | Week 47 | Week 52 | ||
| Week 43 | Week 48 | |||
| Week 44 | Week 49 |
2022
| Week 1 | Week 8 | Week 15 | ||
| Week 2 | Week 9 | Week 16 | ||
| Week 3 | Week 10 | Week 17 | ||
| Week 4 | Week 11 | Week 18 | ||
| Week 5 | Week 12 | Week 19 | ||
| Week 6 | Week 13 | Week 20* | ||
| Week 7 | Week 14 |
* This will be the Final Weekly Report of the 2021-2022 influenza season.
2020-2021
2020-2021 Flu Season
2020
| Week 40 | Week 45 | Week 50 | ||
| Week 41 | Week 46 | Week 51 | ||
| Week 42 | Week 47 | Week 52 | ||
| Week 43 | Week 48 | Week 53 | ||
| Week 44 | Week 49 |
2021
| Week 1 | Week 8 | Week 15 | ||
| Week 2 | Week 9 | Week 16 | ||
| Week 3 | Week 10 | Week 17 | ||
| Week 4 | Week 11 | Week 18 | ||
| Week 5 | Week 12 | Week 19 | ||
| Week 6 | Week 13 | Week 20 | ||
| Week 7 | Week 14 |
2019-2020
2019-2020 Flu Season
2019
| Week 40 | Week 45 | Week 50 | ||
| Week 41 | Week 46 | Week 51 | ||
| Week 42 | Week 47 | Week 52 | ||
| Week 43 | Week 48 | |||
| Week 44 | Week 49 |
2020
| Week 1 | Week 8 | Week 15 | ||
| Week 2 | Week 9 | Week 16 | ||
| Week 3 | Week 10 | Week 17 | ||
| Week 4 | Week 11 | Week 18 | ||
| Week 5 | Week 12 | Week 19 | ||
| Week 6 | Week 13 | Week 20* | ||
| Week 7 | Week 14 |
* This will be the Final Weekly Report of the 2019-2020 influenza season.
2018-2019
2018-2019 Flu Season
2018
| Week 40 | Week 45 | Week 50 | ||
| Week 41 | Week 46 | Week 51 | ||
| Week 42 | Week 47 | Week 52 | ||
| Week 43 | Week 48 | |||
| Week 44 | Week 49 |
2019
| Week 1 | Week 8 | Week 15 | ||
| Week 2 | Week 9 | Week 16 | ||
| Week 3 | Week 10 | Week 17 | ||
| Week 4 | Week 11 | Week 18 | ||
| Week 5 | Week 12 | Week 19 | ||
| Week 6 | Week 13 | Week 20* | ||
| Week 7 | Week 14 |
* This will be the Final Weekly Report of the 2018-2019 influenza season.
2017-2018
2017-2018 Flu Season
2017
| Week 40 | Week 45 | Week 50 | ||
| Week 41 | Week 46 | Week 51 | ||
| Week 42 | Week 47 | Week 52 | ||
| Week 43 | Week 48 | |||
| Week 44 | Week 49 |
2018
| Week 1 | Week 8 | Week 15 | ||
| Week 2 | Week 9 | Week 16 | ||
| Week 3 | Week 10 | Week 17 | ||
| Week 4 | Week 11 | Week 18 | ||
| Week 5 | Week 12 | Week 19 | ||
| Week 6 | Week 13 | Week 20* | ||
| Week 7 | Week 14 |
* This is the Final Weekly Report of the 2017-2018 influenza season.