| Dates | School | Confirmed Cases |
|---|
| Collected | Reported | School Board | School | Municipality | Student | Staff | Unspecified | Total |
|---|
| 2021-11-25 | 2021-11-26 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-24 | 2021-11-25 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-23 | 2021-11-24 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-22 | 2021-11-23 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-19 | 2021-11-22 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-18 | 2021-11-19 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-17 | 2021-11-18 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-16 | 2021-11-17 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-15 | 2021-11-16 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-12 | 2021-11-15 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 2 | 0 | 0 | 2 |
| 2021-11-11 | 2021-11-12 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-10 | 2021-11-11 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-09 | 2021-11-10 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-08 | 2021-11-09 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-05 | 2021-11-08 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-04 | 2021-11-05 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-03 | 2021-11-04 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-02 | 2021-11-03 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-11-01 | 2021-11-02 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-04-14 | 2021-04-15 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2021-04-09 | 2021-04-12 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2020-12-15 | 2020-12-16 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2020-12-14 | 2020-12-15 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2020-12-11 | 2020-12-14 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2020-12-10 | 2020-12-11 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-12-09 | 2020-12-10 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-12-08 | 2020-12-09 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-12-07 | 2020-12-08 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-12-04 | 2020-12-07 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-12-03 | 2020-12-04 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-12-02 | 2020-12-03 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-12-01 | 2020-12-02 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2020-11-30 | 2020-12-01 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2020-11-27 | 2020-11-30 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2020-11-20 | 2020-11-23 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |
| 2020-11-19 | 2020-11-20 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-11-18 | 2020-11-19 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 3 | 0 | 0 | 3 |
| 2020-11-17 | 2020-11-18 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 3 | 0 | 0 | 3 |
| 2020-11-16 | 2020-11-17 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 3 | 0 | 0 | 3 |
| 2020-11-13 | 2020-11-16 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 3 | 0 | 0 | 3 |
| 2020-11-12 | 2020-11-13 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 3 | 0 | 0 | 3 |
| 2020-11-11 | 2020-11-12 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 3 | 0 | 0 | 3 |
| 2020-11-10 | 2020-11-11 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 3 | 0 | 0 | 3 |
| 2020-11-09 | 2020-11-10 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 3 | 0 | 0 | 3 |
| 2020-11-06 | 2020-11-09 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 2 | 0 | 0 | 2 |
| 2020-11-05 | 2020-11-06 | Hamilton-Wentworth District School Board | Ancaster High School | Hamilton | 1 | 0 | 0 | 1 |