Fig. 4.

Model results for active cases per day (a), ICU beds per day (b), hospitalizations per day (c), accumulative deaths (d), accumulative cases (e), accumulative recuperated cases (f), as well as social distancing (SD) strategies (g), and protection percentage (h) in US. Initial stepping-down SD starts at 20 %, then it is divided by half for the next 3 windows, and the pattern repeats itself from the start (80 days/window); intermittent SD alternate 20 % and 0; constant strategy keeps SD at 10 % for the total duration of the pandemic. Protection percentage drops from current estimated values of 68 % to either 50 % or 30 %.