| Dates | School | Confirmed Cases |
|---|
| Collected | Reported | School Board | School | Municipality | Student | Staff | Unspecified | Total |
|---|
| 2021-03-24 | 2021-03-25 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2021-03-23 | 2021-03-24 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2021-03-22 | 2021-03-23 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2021-03-19 | 2021-03-22 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2021-03-18 | 2021-03-19 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2021-03-17 | 2021-03-18 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2021-03-16 | 2021-03-17 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2021-03-15 | 2021-03-16 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2021-03-12 | 2021-03-15 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2021-03-11 | 2021-03-12 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2020-12-11 | 2020-12-14 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2020-12-10 | 2020-12-11 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2020-12-09 | 2020-12-10 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2020-12-08 | 2020-12-09 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2020-12-07 | 2020-12-08 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2020-12-04 | 2020-12-07 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2020-12-03 | 2020-12-04 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2020-12-02 | 2020-12-03 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2020-12-01 | 2020-12-02 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |
| 2020-11-30 | 2020-12-01 | District School Board of Niagara | Martha Cullimore Public School | Niagara Falls | 1 | 0 | 0 | 1 |