Fig. 2

Trends in respiratory testing and positivity from 2018–2020 across Alberta. a A seven-day moving average of RPP testing and eCoV positivity from respiratory specimens collected between Jan 1–Jun 6 of each year. b Violin plot of patient age for all RPP specimens collected between Jan 1–Jun 6 of each year. Specimens were excluded if age was unknown. c Patient category at the time of RPP test collection over the study period (Mar 7–May 28, 2020). ‘Other’ locations included correctional facilities, armed forces, and Medical Examiner specimens. d A seven-day moving average of respiratory specimens tested by both RPP and SARS-CoV-2 assays in the study period (Mar 7–May 28, 2020) and respective positivity. ***p < 0.001. ****p < 0.0001. White circle, median. Whiskers, range within 1.5 × interquartile range. Dark grey box, 25th–75th percentile. LTC long-term care