Weekly SARS-CoV-2 test positivity, case growth rates and mobility in Canada, Mar. 15, 2020, to Mar. 6, 2021
| Level of analysis | No. of weeks | No. of cases | Median (IQR) | |||
|---|---|---|---|---|---|---|
| Test positivity, %* | Case growth rate | Positivity-corrected growth rate | Out-of-home mobility, % of baseline | |||
| Canada | 51 | 888 751 | 3.7 (1.2–6.1) | 1.0 (0.9–1.2) | 1.1 (0.7–1.5) | 61 (48–73) |
| Period | ||||||
| March 2020 | 3 | 14 149 | 4.1 (2.7–5.6) | 4.0 (3.0–4.7) | 8.7 (6.1–11.3) | 82 (71–89) |
| April–June 2020 | 13 | 92 650 | 3.9 (1.4–6.0) | 1.0 (0.8–1.1) | 0.8 (0.5–1.1) | 40 (31–52) |
| July–September 2020 | 13 | 59 643 | 0.9 (0.8–1.1) | 1.2 (1.0–1.3) | 1.3 (1.0–1.7) | 75 (73–77) |
| October–December 2020 | 13 | 423 081 | 5.9 (4.0–6.3) | 1.1 (1.0–1.2) | 1.3 (1.1–1.4) | 65 (60–67) |
| January–March 2021 | 9 | 299 228 | 4.5 (3.7–6.2) | 0.9 (0.8–1.0) | 0.8 (0.7–0.9) | 48 (45–50) |
| Provinces | ||||||
| Alberta | 51 | 135 498 | 2.1 (1.1–4.6) | 1.1 (0.9–1.4) | 1.0 (0.7–1.9) | 63 (52–78) |
| British Columbia | 51 | 83 034 | 2.3 (1.2–5.6) | 1.0 (0.9–1.3) | 1.0 (0.9–1.5) | 62 (56–73) |
| Manitoba | 32 | 31 785 | 5.7 (2.1–9.4) | 1.0 (0.8–1.4) | 1.1 (0.7–1.8) | 64 (52–82) |
| Ontario | 51 | 311 810 | 2.3 (0.9–3.8) | 1.1 (0.9–1.2) | 1.1 (0.7–1.4) | 57 (40–66) |
| Quebec | 50 | 289 583 | 9.1 (2.3–14.7) | 1.0 (0.8–1.2) | 1.0 (0.6–1.6) | 60 (45–73) |
| Saskatchewan | 44 | 29 299 | 2.3 (1.1–15.6) | 1.1 (0.9–1.3) | 1.2 (0.8–1.8) | 68 (61–87) |
Note: IQR = interquartile range, SARS-CoV-2 = severe acute respiratory syndrome coronavirus 2.
↵* Two missing weeks for test positivity at the national level (n = 49) and 10 missing weeks at the provincial level (n = 269).