| 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 | Christ the King Catholic Secondary School | Halton Hills | 5 | 0 | 0 | 5 |
| 2021-12-21 | 2021-12-22 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 5 | 0 | 0 | 5 |
| 2021-12-20 | 2021-12-21 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 5 | 0 | 0 | 5 |
| 2021-12-17 | 2021-12-20 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 6 | 0 | 0 | 6 |
| 2021-12-16 | 2021-12-17 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 5 | 0 | 0 | 5 |
| 2021-12-15 | 2021-12-16 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 5 | 0 | 0 | 5 |
| 2021-12-14 | 2021-12-15 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 4 | 0 | 0 | 4 |
| 2021-12-13 | 2021-12-14 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 4 | 0 | 0 | 4 |
| 2021-12-10 | 2021-12-13 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2021-12-09 | 2021-12-10 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2021-12-08 | 2021-12-09 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2021-12-07 | 2021-12-08 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2021-12-06 | 2021-12-07 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2021-04-14 | 2021-04-15 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 1 | 0 | 1 |
| 2021-04-09 | 2021-04-12 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 1 | 0 | 1 |
| 2021-04-08 | 2021-04-09 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 1 | 0 | 1 |
| 2021-03-24 | 2021-03-25 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2021-03-23 | 2021-03-24 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2021-03-22 | 2021-03-23 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 2 | 0 | 0 | 2 |
| 2021-03-19 | 2021-03-22 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 2 | 0 | 0 | 2 |
| 2021-03-18 | 2021-03-19 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 2 | 0 | 0 | 2 |
| 2021-03-17 | 2021-03-18 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 2 | 0 | 0 | 2 |
| 2021-03-16 | 2021-03-17 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 2 | 0 | 0 | 2 |
| 2021-03-15 | 2021-03-16 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 2 | 0 | 0 | 2 |
| 2021-03-12 | 2021-03-15 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 3 | 0 | 0 | 3 |
| 2021-03-11 | 2021-03-12 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 3 | 0 | 0 | 3 |
| 2021-03-10 | 2021-03-11 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 2 | 0 | 0 | 2 |
| 2021-03-09 | 2021-03-10 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 2 | 0 | 0 | 2 |
| 2021-03-08 | 2021-03-09 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2021-03-05 | 2021-03-08 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2021-03-04 | 2021-03-05 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2021-03-03 | 2021-03-04 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2021-03-02 | 2021-03-03 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2021-03-01 | 2021-03-02 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2020-12-18 | 2020-12-21 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 2 | 1 | 0 | 3 |
| 2020-12-17 | 2020-12-18 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 1 | 0 | 2 |
| 2020-12-16 | 2020-12-17 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 1 | 0 | 2 |
| 2020-12-15 | 2020-12-16 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 1 | 0 | 2 |
| 2020-12-14 | 2020-12-15 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2020-12-11 | 2020-12-14 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2020-12-10 | 2020-12-11 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2020-12-09 | 2020-12-10 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2020-12-08 | 2020-12-09 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2020-12-04 | 2020-12-07 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2020-12-03 | 2020-12-04 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2020-12-02 | 2020-12-03 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 0 | 0 | 1 |
| 2020-12-01 | 2020-12-02 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 1 | 0 | 2 |
| 2020-11-30 | 2020-12-01 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 1 | 0 | 2 |
| 2020-11-27 | 2020-11-30 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 1 | 0 | 2 |
| 2020-11-26 | 2020-11-27 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 1 | 0 | 2 |
| 2020-11-25 | 2020-11-26 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 1 | 0 | 2 |
| 2020-11-24 | 2020-11-25 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 1 | 0 | 2 |
| 2020-11-23 | 2020-11-24 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 1 | 1 | 0 | 2 |
| 2020-11-20 | 2020-11-23 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 1 | 0 | 1 |
| 2020-11-19 | 2020-11-20 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 1 | 0 | 1 |
| 2020-11-18 | 2020-11-19 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 1 | 0 | 1 |
| 2020-10-27 | 2020-10-28 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 0 | 1 | 1 |
| 2020-10-26 | 2020-10-27 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 0 | 1 | 1 |
| 2020-10-23 | 2020-10-26 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 0 | 1 | 1 |
| 2020-10-22 | 2020-10-23 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 0 | 1 | 1 |
| 2020-10-21 | 2020-10-22 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 0 | 1 | 1 |
| 2020-10-20 | 2020-10-21 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 0 | 1 | 1 |
| 2020-10-19 | 2020-10-20 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 0 | 1 | 1 |
| 2020-10-16 | 2020-10-19 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 0 | 1 | 1 |
| 2020-10-15 | 2020-10-16 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 0 | 1 | 1 |
| 2020-10-14 | 2020-10-15 | Halton Catholic District School Board | Christ the King Catholic Secondary School | Halton Hills | 0 | 0 | 1 | 1 |