Fig. 2

Time series plots of the daily infection and death log return data for USA and Brazil – the raw time series data shown in Fig. 1 to calculate corresponding log return values: (a) The top panel shows the daily infection log return for USA across FW; (b) The second panel shows the USA daily death log return across the FW; (c) the third panel shows the daily infection log return in Brazil across FW; (d) the bottom panel shows the daily death log return in Brazil across the FW. Note, the two countries of USA and Brazil are selected as illustrative examples