From: Point prevalence of SARS-CoV-2 infection in Sweden at six time points during 2020
Survey | Dates of survey | Sweden | Stockholm Region | ||||
---|---|---|---|---|---|---|---|
Samples with valid test results | Positive samples | Weighted population prevalence (95% CI) | Samples with valid test results | Positive samples | Weighted population prevalence (95% CI) | ||
(n = 13,490) | (n = 56) | (n = 4192) | (n = 45) | ||||
1 | 26 March–3 April | 707 | 18 | 2.5% (1.4–4.1) | |||
2 | 21–24 April | 2571 | 23 | 0.9% (0.6–1.5) | 679 | 12 | 2.3% (1.1–4.2) |
3 | 25–28 May | 2957 | 9 | 0.3% (0.1–0.5) | 761 | 5 | 0.7% (0.2–1.6) |
4 | 24–28 August | 2518 | 0 | 0.0% (0.0–0.2) | 623 | 0 | 0.0% (0.0–0.6) |
5 | 21–25 September | 2461 | 0 | 0.0% (0.0–0.2) | 632 | 0 | 0.0% (0.0–0.6) |
6 | 30 November–4 December | 2983 | 24 | 0.7% (0.4–1.2) | 790 | 10 | 1.0% (0.4–2.1) |