| Dates | School | Confirmed Cases |
|---|
| Collected | Reported | School Board | School | Municipality | Student | Staff | Unspecified | Total |
|---|
| 2021-12-22 | 2021-12-23 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 0 | 1 | 0 | 1 |
| 2021-12-21 | 2021-12-22 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 0 | 1 | 0 | 1 |
| 2021-12-20 | 2021-12-21 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 0 | 1 | 0 | 1 |
| 2021-11-26 | 2021-11-29 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-25 | 2021-11-26 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-24 | 2021-11-25 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-23 | 2021-11-24 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-22 | 2021-11-23 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-19 | 2021-11-22 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-18 | 2021-11-19 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-17 | 2021-11-18 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-16 | 2021-11-17 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-15 | 2021-11-16 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-10-06 | 2021-10-07 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 0 | 1 | 0 | 1 |
| 2021-10-05 | 2021-10-06 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 0 | 1 | 0 | 1 |
| 2021-10-04 | 2021-10-05 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 0 | 1 | 0 | 1 |
| 2021-10-01 | 2021-10-04 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 0 | 1 | 0 | 1 |
| 2021-09-30 | 2021-10-01 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 0 | 1 | 0 | 1 |
| 2021-09-29 | 2021-09-30 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 0 | 1 | 0 | 1 |
| 2021-09-28 | 2021-09-29 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 0 | 1 | 0 | 1 |
| 2021-09-27 | 2021-09-28 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 0 | 1 | 0 | 1 |
| 2021-09-24 | 2021-09-27 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 0 | 1 | 0 | 1 |
| 2021-09-23 | 2021-09-24 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 0 | 1 | 0 | 1 |
| 2021-03-26 | 2021-03-29 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-03-25 | 2021-03-26 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-03-24 | 2021-03-25 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-03-23 | 2021-03-24 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-03-22 | 2021-03-23 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-03-19 | 2021-03-22 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-03-18 | 2021-03-19 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-03-17 | 2021-03-18 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-03-16 | 2021-03-17 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-03-15 | 2021-03-16 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-03-12 | 2021-03-15 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 2 | 0 | 0 | 2 |
| 2021-03-11 | 2021-03-12 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 2 | 0 | 0 | 2 |
| 2021-03-10 | 2021-03-11 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 2 | 0 | 0 | 2 |
| 2021-03-09 | 2021-03-10 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 2 | 0 | 0 | 2 |
| 2021-03-08 | 2021-03-09 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 2 | 0 | 0 | 2 |
| 2021-03-05 | 2021-03-08 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 3 | 0 | 0 | 3 |
| 2021-03-04 | 2021-03-05 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 3 | 0 | 0 | 3 |
| 2021-03-03 | 2021-03-04 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 4 | 0 | 0 | 4 |
| 2021-03-02 | 2021-03-03 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 4 | 0 | 0 | 4 |
| 2021-03-01 | 2021-03-02 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 4 | 0 | 0 | 4 |
| 2021-02-26 | 2021-03-01 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 3 | 0 | 0 | 3 |
| 2021-02-25 | 2021-02-26 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 3 | 0 | 0 | 3 |
| 2021-02-24 | 2021-02-25 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 3 | 0 | 0 | 3 |
| 2021-02-23 | 2021-02-24 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 3 | 0 | 0 | 3 |
| 2021-02-22 | 2021-02-23 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 3 | 0 | 0 | 3 |
| 2021-02-19 | 2021-02-22 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 2 | 0 | 0 | 2 |
| 2021-02-18 | 2021-02-19 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 2 | 0 | 0 | 2 |
| 2021-02-17 | 2021-02-18 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-02-16 | 2021-02-17 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-02-12 | 2021-02-16 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2020-11-09 | 2020-11-10 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2020-11-06 | 2020-11-09 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2020-11-05 | 2020-11-06 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-11-04 | 2020-11-05 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-11-03 | 2020-11-04 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-11-02 | 2020-11-03 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-10-30 | 2020-11-02 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-10-29 | 2020-10-30 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-10-28 | 2020-10-29 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-10-27 | 2020-10-28 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-10-26 | 2020-10-27 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |
| 2020-10-23 | 2020-10-26 | Hamilton-Wentworth District School Board | Dundas Valley Secondary School | Hamilton | 1 | 0 | 0 | 1 |