Fig. 4.

Data for China (CHN), Greece (GRC), USA and Spain (ESP) and the United States of America (USA). Red dots are the daily data reported in [21], the green lines are the fits by the FSIR model. The blue dots are seven-day running averages and the blue dashed lines are the fits by the FSIR model; in all cases the green and blue-dashed lines are essentially indistinguishable, except for USA near the end of the examined period. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)