When this article was originally published in Epidemiology & Infection it contained some incorrect figures. The correct versions of figures 9 and 11 can be seen below:

Figure 9. The change of MAPE with increasing the number of reservoir neurons
$ N $
for confirmed cases forecasting for nine countries.

Figure 11. The variation of MAPE with increasing spectral radius
$ \rho (W) $
for confirmed cases forecasting for nine countries.
The authors apologise for this error.



