Characteristics of COVID-19 outbreaks in long-term care facilities between Mar. 1, 2020, and Jan. 31, 2021, in British Columbia
| Characteristic | No. (%) of total* |
|---|---|
| COVID-19 outbreaks | |
| Total outbreaks† | 94 |
| Wave 1‡ | 18 (19.1) |
| Wave 2‡ | 76 (80.9) |
| No. of residents involved in outbreak | |
| 1 | 14 (14.9) |
| 2–10 | 28 (29.8) |
| 11–50 | 34 (36.2) |
| > 50 | 18 (19.1) |
| At least 1 resident death | 75 (79.8) |
| Length of outbreak, d, mean ± SD | 47.2 ± 18.6 |
| Range | 5.0–106.0 |
| No. of outbreaks by health authority | |
| Vancouver Coastal Health | 25 (26.6) |
| Fraser Health | 55 (58.5) |
| Interior Health | 9 (9.6) |
| Island Health | 2 (2.1) |
| Northern Health | 3 (3.2) |
| LTC facilities | |
| Total facilities | 293 |
| Facilities with outbreaks | 80 (27.3) |
| No outbreaks | 213 (72.7) |
| 1 outbreak | 66 (22.5) |
| 2 outbreaks | 14 (4.8) |
| Facilities by health authority | |
| Vancouver Coastal Health | 54 (18.4) |
| Fraser Health | 80 (27.3) |
| Interior Health | 79 (27.0) |
| Island Health | 58 (19.8) |
| Northern Health | 22 (7.5) |
| COVID-19 cases among LTC residents‡ | |
| Total resident cases | 2379 |
| Resident cases per outbreak facility, mean ± SD | 29.7 ± 26.9 |
| Total resident deaths | 749 |
| COVID-19 case mortality rate (resident deaths per resident COVID-19 cases) | 749 (31.5) |
| Resident cases by health authority | |
| Vancouver Coastal Health | 764 (32.1) |
| Fraser Health | 1286 (54.1) |
| Interior Health | 231 (9.7) |
| Island Health | 8 (0.3) |
| Northern Health | 90 (3.8) |
| Community rates of COVID-19 | |
| Health authority daily incidence, infections per 100000 population¶ | |
| Vancouver Coastal Health | 4.14 |
| Fraser Health | 6.75 |
| Interior Health | 2.52 |
| Island Health | 0.76 |
| Northern Health | 4.20 |
Note: LTC = long-term care, SD = standard deviation.
↵* Unless indicated otherwise.
↵† An outbreak at a facility was declared when COVID-19 was diagnosed in 1 or more LTC residents by laboratory-confirmed SARS-CoV-2 infection.
↵‡ Wave 1: Mar. 1, 2020, to July 31, 2020; wave 2: Aug. 1, 2020, to Jan. 31, 2021.
§ A COVID-19 case refers to an LTC facility resident with laboratory-confirmed SARS-CoV-2 infection.
↵¶ Average daily incidence (Mar. 1, 2020, to Jan. 31, 2021) calculated from laboratory-diagnosed or episode-linked case tallies by health authority in BC.