Fig 1.
Daily RT-PCR or antigenic confirmed COVID-19 cases (top), daily number of emergency department consultations with suspected COVID-19 (middle), and daily number of new hospital admissions for COVID-19 (bottom) between May 13, 2020, and August 12, 2022, in metropolitan France. A base-10 log scale is used for the Y-axis. Blue curves are smoothed counts using cubic smoothing splines. Shaded areas indicate the second nationwide lockdown from October 29 to December 14, 2020, and the third from April 3rd to May 2nd, 2021.
Fig 2.
Estimates of the daily reproduction number (Rt) throughout the COVID-19 pandemic from May 27, 2020, to August 12, 2022 in metropolitan France (mean as solid lines and 95% credible interval as shaded areas) based on confirmed cases among the tested population (SI-DEP), suspected cases in emergency department visits (OSCOUR), and hospitalized patients (SI-VIC).
Shaded areas indicate the nationwide lockdown periods (October 29 to December 14, 2020, and April 3rd to May 2nd, 2021).
Fig 3.
Boxplot of the differences between the daily estimates of Rt depending on the datasets used from May 26, 2020, to August 12, 2022, in metropolitan France.
Red points highlight the mean differences.
Table 1.
Pearson correlation between the daily reproduction numbers (Rt) for COVID-19 from May 27, 2020, to August 12, 2022, in metropolitan France, estimated based on confirmed positive cases in the tested population (SI-DEP), suspected cases in emergency department visits (OSCOUR), and hospitalized patients (SI-VIC) according to the temporal lag (in days).
The bold figures highlight the maximum correlation.