Data from Folkhälsomyndigheten (FHM), and their daily released Excel sheet with statistics. All time series are processed with a moving average filter over one week to eliminate weekly variations in reporting. First, the number of cases are compared for some regions in southern Sweden, all numbers are normalised with the population and show the number of cases per 100.000 people. The second figure is a zoomed version of the first one, focusing on the second wave.

The following plot shows how the cases are distributed among three age groups.

We have fitted a SIR model to the mortality data. The figure below shows the result from a simple SIR model and one SIR model which have a change point where the spread rate is allowed to change. The first plot shows the fitted mortality data, the second one the SIR states and the last one summarises a number of estimated parameters.