| Dates | School | Confirmed Cases |
|---|
| Collected | Reported | School Board | School | Municipality | Student | Staff | Unspecified | Total |
|---|
| 2021-12-22 | 2021-12-23 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 5 | 0 | 0 | 5 |
| 2021-12-21 | 2021-12-22 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 5 | 0 | 0 | 5 |
| 2021-12-20 | 2021-12-21 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 8 | 0 | 0 | 8 |
| 2021-12-17 | 2021-12-20 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 8 | 0 | 0 | 8 |
| 2021-12-16 | 2021-12-17 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 8 | 0 | 0 | 8 |
| 2021-12-15 | 2021-12-16 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 8 | 0 | 0 | 8 |
| 2021-12-14 | 2021-12-15 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 6 | 0 | 0 | 6 |
| 2021-12-13 | 2021-12-14 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 6 | 0 | 0 | 6 |
| 2021-12-10 | 2021-12-13 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 6 | 0 | 0 | 6 |
| 2021-12-09 | 2021-12-10 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 3 | 0 | 0 | 3 |
| 2021-12-08 | 2021-12-09 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 3 | 0 | 0 | 3 |
| 2021-12-07 | 2021-12-08 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 3 | 0 | 0 | 3 |
| 2021-11-09 | 2021-11-10 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 1 | 0 | 0 | 1 |
| 2021-11-08 | 2021-11-09 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 1 | 0 | 0 | 1 |
| 2021-11-05 | 2021-11-08 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 1 | 0 | 0 | 1 |
| 2021-11-04 | 2021-11-05 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 1 | 0 | 0 | 1 |
| 2021-11-03 | 2021-11-04 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 1 | 0 | 0 | 1 |
| 2021-11-02 | 2021-11-03 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 1 | 0 | 0 | 1 |
| 2021-11-01 | 2021-11-02 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 1 | 0 | 0 | 1 |
| 2021-10-29 | 2021-11-01 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 1 | 0 | 0 | 1 |
| 2021-10-28 | 2021-10-29 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 1 | 0 | 0 | 1 |
| 2021-10-27 | 2021-10-28 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 1 | 0 | 0 | 1 |
| 2021-10-08 | 2021-10-12 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 1 | 0 | 0 | 1 |
| 2021-10-07 | 2021-10-08 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 2 | 0 | 0 | 2 |
| 2021-10-06 | 2021-10-07 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 2 | 0 | 0 | 2 |
| 2021-10-05 | 2021-10-06 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 4 | 0 | 0 | 4 |
| 2021-10-04 | 2021-10-05 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 7 | 0 | 0 | 7 |
| 2021-10-01 | 2021-10-04 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 7 | 0 | 0 | 7 |
| 2021-09-30 | 2021-10-01 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 7 | 0 | 0 | 7 |
| 2021-09-29 | 2021-09-30 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 7 | 0 | 0 | 7 |
| 2021-09-28 | 2021-09-29 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 7 | 0 | 0 | 7 |
| 2021-09-27 | 2021-09-28 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 6 | 0 | 0 | 6 |
| 2021-09-24 | 2021-09-27 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 5 | 0 | 0 | 5 |
| 2021-09-23 | 2021-09-24 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 5 | 0 | 0 | 5 |
| 2021-09-22 | 2021-09-23 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 5 | 0 | 0 | 5 |
| 2021-09-21 | 2021-09-22 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 3 | 0 | 0 | 3 |
| 2021-04-14 | 2021-04-15 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 2 | 0 | 0 | 2 |
| 2021-04-09 | 2021-04-12 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 2 | 0 | 0 | 2 |
| 2021-03-05 | 2021-03-08 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 1 | 0 | 1 |
| 2021-03-04 | 2021-03-05 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 1 | 0 | 1 |
| 2021-03-03 | 2021-03-04 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 1 | 0 | 1 |
| 2021-03-02 | 2021-03-03 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 1 | 0 | 1 |
| 2021-03-01 | 2021-03-02 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 1 | 0 | 1 |
| 2021-02-26 | 2021-03-01 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 1 | 0 | 1 |
| 2021-02-25 | 2021-02-26 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 1 | 0 | 1 |
| 2021-02-24 | 2021-02-25 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 1 | 0 | 1 |
| 2021-02-23 | 2021-02-24 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 1 | 0 | 1 |
| 2021-02-22 | 2021-02-23 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 1 | 0 | 1 |
| 2020-11-25 | 2020-11-26 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 1 | 1 |
| 2020-11-24 | 2020-11-25 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 1 | 1 |
| 2020-11-23 | 2020-11-24 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 1 | 1 |
| 2020-11-20 | 2020-11-23 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 1 | 1 |
| 2020-11-19 | 2020-11-20 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 1 | 1 |
| 2020-11-18 | 2020-11-19 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 1 | 1 |
| 2020-11-17 | 2020-11-18 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 1 | 1 |
| 2020-11-16 | 2020-11-17 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 3 | 3 |
| 2020-11-13 | 2020-11-16 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 3 | 3 |
| 2020-11-12 | 2020-11-13 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 3 | 3 |
| 2020-11-11 | 2020-11-12 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 3 | 3 |
| 2020-11-10 | 2020-11-11 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 3 | 3 |
| 2020-11-09 | 2020-11-10 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 3 | 3 |
| 2020-11-06 | 2020-11-09 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 3 | 3 |
| 2020-11-05 | 2020-11-06 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 3 | 3 |
| 2020-11-04 | 2020-11-05 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 3 | 3 |
| 2020-11-03 | 2020-11-04 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 3 | 3 |
| 2020-11-02 | 2020-11-03 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 1 | 1 |
| 2020-10-30 | 2020-11-02 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 1 | 1 |
| 2020-10-29 | 2020-10-30 | Halton Catholic District School Board | St. Gregory the Great Catholic Elementary School | Oakville | 0 | 0 | 1 | 1 |