Table 3. The cumulative number of infected population according to different scenarios corresponding different values ${\tau }_2^{k+3}$ for time intervals Δ _k.

The starting values of parameters ( α, β and ${\tau }_2^k$, k = 1, 2, 3) are in Table 2 (World). The first time interval (Δ ₁) is 12/Nov/2014–31/Dec/2014, followed by each next month and the last interval (Δ ₅) starts from 1/Apr/2015. The last column presents the date for the end of Ebola epidemic (see also Figure 3) with corresponding number of cumulative infected population C _max (-/∞ means no stabilization). The version ${\tau }_2^k$ = 4 for all k means the current trend remains unchanged. The reproduction number for τ ₂ = 3 is R = 0.778; it is less than 1 which leads to stabilization. For corresponding reproduction numbers for τ ₂ = 4 and 5 see Table 2 (World).

${\tau }_2^4$	${\tau }_2^5$	${\tau }_2^6$	${\tau }_2^7$	${\tau }_2^8$	End/ C max
4	4	4	4	4	-/∞
4	3	3	3	3	Apr-2015/31,000
4	4	3	3	3	Apr-2015/39,000
4	4	4	3	3	May-2015/47,000
4	4	4	4	3	May-2015/57,000
4	5	4	3	3	Jun-2015/69,000
4	5	4	4	3	Jun-2015/90,000
4	5	5	4	3	Jun-2015/135,000
5	4	4	3	3	Jun-2015/102,000
5	5	4	3	3	Jul-2015/120,000
5	5	4	4	3	Jul-2015/166,000