Figure 3. Reported number of COVID-19 cases and tests in the US and estimated time-varying reproductive number.
(A) The cumulative number of confirmed cases (blue) and individuals tested (red) are plotted on the log10 scale for March 4 to April 17, 2020. (B) The percent of tests positive through time is plotted for the daily data (grey) and the cumulative data (purple). (C) The estimated value of the time-varying reproductive number, Rt, is plotted for March 4 to April 5 (green), which is the last day that the value of Rt can be reliably estimated. Uncorrected (grey) and corrected (black) values of Rt are plotted for April 2 to April 16.