| Dates | School | Confirmed Cases |
|---|
| Collected | Reported | School Board | School | Municipality | Student | Staff | Unspecified | Total |
|---|
| 2021-12-10 | 2021-12-13 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-12-09 | 2021-12-10 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-12-08 | 2021-12-09 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-12-07 | 2021-12-08 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-12-06 | 2021-12-07 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-12-03 | 2021-12-06 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-12-02 | 2021-12-03 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-12-01 | 2021-12-02 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-11-30 | 2021-12-01 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-11-29 | 2021-11-30 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-11-17 | 2021-11-18 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-11-16 | 2021-11-17 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-11-15 | 2021-11-16 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-11-12 | 2021-11-15 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-11-11 | 2021-11-12 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-11-10 | 2021-11-11 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-11-09 | 2021-11-10 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-11-08 | 2021-11-09 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-11-05 | 2021-11-08 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-11-04 | 2021-11-05 | York Catholic District School Board | St Nicholas Catholic Elementary School | Newmarket | 0 | 1 | 0 | 1 |
| 2021-11-26 | 2021-11-29 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-11-25 | 2021-11-26 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-11-24 | 2021-11-25 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-11-23 | 2021-11-24 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-11-22 | 2021-11-23 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-11-19 | 2021-11-22 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-11-18 | 2021-11-19 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-11-17 | 2021-11-18 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-11-16 | 2021-11-17 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-11-15 | 2021-11-16 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-03-31 | 2021-04-01 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-03-30 | 2021-03-31 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-03-29 | 2021-03-30 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-03-26 | 2021-03-29 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-03-25 | 2021-03-26 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 2 | 0 | 0 | 2 |
| 2021-03-24 | 2021-03-25 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 2 | 0 | 0 | 2 |
| 2021-03-23 | 2021-03-24 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 2 | 0 | 0 | 2 |
| 2021-03-22 | 2021-03-23 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 2 | 0 | 0 | 2 |
| 2021-03-19 | 2021-03-22 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-03-18 | 2021-03-19 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-03-17 | 2021-03-18 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-03-16 | 2021-03-17 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-03-15 | 2021-03-16 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |
| 2021-03-12 | 2021-03-15 | Waterloo Catholic District School Board | St Nicholas Catholic Elementary School | Waterloo | 1 | 0 | 0 | 1 |