| Dates | School | Confirmed Cases |
|---|
| Collected | Reported | School Board | School | Municipality | Student | Staff | Unspecified | Total |
|---|
| 2021-04-14 | 2021-04-15 | Limestone District School Board | Centreville Public School | Stone Mills | 0 | 1 | 0 | 1 |
| 2021-04-09 | 2021-04-12 | Limestone District School Board | Centreville Public School | Stone Mills | 0 | 1 | 0 | 1 |
| 2021-04-08 | 2021-04-09 | Limestone District School Board | Centreville Public School | Stone Mills | 0 | 1 | 0 | 1 |
| 2021-04-07 | 2021-04-08 | Limestone District School Board | Centreville Public School | Stone Mills | 0 | 1 | 0 | 1 |
| 2021-04-06 | 2021-04-07 | Limestone District School Board | Centreville Public School | Stone Mills | 0 | 1 | 0 | 1 |
| 2021-04-01 | 2021-04-06 | Limestone District School Board | Centreville Public School | Stone Mills | 0 | 1 | 0 | 1 |
| 2021-03-31 | 2021-04-01 | Limestone District School Board | Centreville Public School | Stone Mills | 0 | 1 | 0 | 1 |