Table 2. The effect of the delay, Δ, on dynamics of infecteds*.
Δ | Outcome |
---|---|
0 | Monotone convergence to |
1 | Damped oscillation to |
2 | locally unstable; I0 < 72 bounded oscillation; I0 > 73 unbounded oscillation |
3 | locally unstable; collapse (−∞) |
4 | locally unstable; collapse (−∞) |
* In all cases, N = 10, 000, b0 = 0.05, γ = 0.08, , α = 0.375, . I0 = 1 unless stated.