Fig. 5.

a Daily number of deaths (green circles) attributed to COVID-19 for Slovakia up to March 3, 2022. The solid curve is the best fit by the pathway model with three waves ($N=2$), yielding the following parameters: $C_1=4.39\times {10}^{-13},{\alpha }_1=4.59,q_1=2.05,{\beta }_1=1.14\times {10}^{-4},{\gamma }_1=3.95,C_2=1.97\times {10}^{-3},{\alpha }_2=4.09,q_2=1.00,{\beta }_2=6.60\times {10}^{-6},{\gamma }_2=2.25,{\rho }_1=0.0214$, and $t_1=416$. The black dots indicate the maxima and minima of the daily theoretical curve. b Cumulative number of deaths, where the empirical data are indicated by green circles and the solid curve represents the curves obtained by numerically integrating the theoretical curve in the left panel