| Dates | School | Confirmed Cases |
|---|
| Collected | Reported | School Board | School | Municipality | Student | Staff | Unspecified | Total |
|---|
| 2021-12-22 | 2021-12-23 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-12-21 | 2021-12-22 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-12-20 | 2021-12-21 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-12-17 | 2021-12-20 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-12-16 | 2021-12-17 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-12-15 | 2021-12-16 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-12-14 | 2021-12-15 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-12-13 | 2021-12-14 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-11-22 | 2021-11-23 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-11-19 | 2021-11-22 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-11-18 | 2021-11-19 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-11-17 | 2021-11-18 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-11-16 | 2021-11-17 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-11-15 | 2021-11-16 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-11-12 | 2021-11-15 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 1 | 0 | 3 |
| 2021-11-11 | 2021-11-12 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 1 | 0 | 3 |
| 2021-11-10 | 2021-11-11 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 1 | 0 | 3 |
| 2021-11-09 | 2021-11-10 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 1 | 0 | 3 |
| 2021-11-08 | 2021-11-09 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 0 | 1 | 0 | 1 |
| 2021-11-05 | 2021-11-08 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 1 | 0 | 3 |
| 2021-11-04 | 2021-11-05 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 3 | 1 | 0 | 4 |
| 2021-11-03 | 2021-11-04 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 3 | 1 | 0 | 4 |
| 2021-11-02 | 2021-11-03 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 3 | 1 | 0 | 4 |
| 2021-11-01 | 2021-11-02 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 3 | 1 | 0 | 4 |
| 2021-10-29 | 2021-11-01 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 3 | 0 | 0 | 3 |
| 2021-10-28 | 2021-10-29 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 3 | 0 | 0 | 3 |
| 2021-10-27 | 2021-10-28 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 3 | 0 | 0 | 3 |
| 2021-10-26 | 2021-10-27 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 3 | 0 | 0 | 3 |
| 2021-10-25 | 2021-10-26 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 4 | 0 | 0 | 4 |
| 2021-10-22 | 2021-10-25 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-10-21 | 2021-10-22 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-10-20 | 2021-10-21 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-10-19 | 2021-10-20 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-10-18 | 2021-10-19 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-10-15 | 2021-10-18 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-10-14 | 2021-10-15 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-10-13 | 2021-10-14 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-10-12 | 2021-10-13 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-10-07 | 2021-10-08 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-10-06 | 2021-10-07 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-10-05 | 2021-10-06 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-10-04 | 2021-10-05 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-10-01 | 2021-10-04 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-09-30 | 2021-10-01 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-09-29 | 2021-09-30 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-09-28 | 2021-09-29 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-09-27 | 2021-09-28 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-04-14 | 2021-04-15 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 3 | 0 | 0 | 3 |
| 2021-04-09 | 2021-04-12 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 3 | 0 | 0 | 3 |
| 2021-04-08 | 2021-04-09 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-04-07 | 2021-04-08 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-04-06 | 2021-04-07 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-04-01 | 2021-04-06 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2021-03-31 | 2021-04-01 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 3 | 0 | 0 | 3 |
| 2021-03-30 | 2021-03-31 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 3 | 0 | 0 | 3 |
| 2021-03-29 | 2021-03-30 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 3 | 0 | 0 | 3 |
| 2021-03-26 | 2021-03-29 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-03-25 | 2021-03-26 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-03-24 | 2021-03-25 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-03-23 | 2021-03-24 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-03-22 | 2021-03-23 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-02-23 | 2021-02-24 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-02-22 | 2021-02-23 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-02-19 | 2021-02-22 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-02-18 | 2021-02-19 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-02-17 | 2021-02-18 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-02-16 | 2021-02-17 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-02-12 | 2021-02-16 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-02-11 | 2021-02-12 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2021-02-10 | 2021-02-11 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2020-12-07 | 2020-12-08 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2020-12-04 | 2020-12-07 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2020-12-03 | 2020-12-04 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2020-12-02 | 2020-12-03 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2020-12-01 | 2020-12-02 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2020-11-30 | 2020-12-01 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2020-11-27 | 2020-11-30 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2020-11-26 | 2020-11-27 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2020-11-25 | 2020-11-26 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2020-11-24 | 2020-11-25 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 2 | 0 | 0 | 2 |
| 2020-11-23 | 2020-11-24 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2020-11-20 | 2020-11-23 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2020-11-19 | 2020-11-20 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2020-11-18 | 2020-11-19 | St Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2020-11-17 | 2020-11-18 | St. Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2020-11-16 | 2020-11-17 | St. Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2020-11-13 | 2020-11-16 | St. Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |
| 2020-11-12 | 2020-11-13 | St. Clair Catholic District School Board | Ursuline College Chatham Catholic Secondary School | Chatham-Kent | 1 | 0 | 0 | 1 |