Fig. 1.

(Color online) Comparison between the number of confirmed cases in Rio de Janeiro state (circles) and Eq. (5) (full line), for the initial epidemic phase. In this case, we considered $k_0=0,$ i.e., no implementation of isolation policies. The parameters are $I_0=8,\beta =0.3194,\alpha +\eta =0.0412,$ as discussed in the text. In the inset we exhibit the graphic in the log-linear scale, showing the typical linear behavior of the exponential function.