SIR EPIDEMIC ON NETWORK
Erdős-Rényi random network + scale-free option. R₀ = β⟨k⟩/γ. Herd immunity threshold: 1 − 1/R₀.
Infection rate β
0.30
Recovery rate γ
0.10
Network mean degree ⟨k⟩
4
Nodes N
150
Erdős-Rényi
Scale-Free (Barabási-Albert)
Small-World (Watts-Strogatz)
Reset Epidemic
New Network
S (susceptible):
0
I (infected):
0
R (recovered):
0
R₀ = β/γ × ⟨k⟩ ≈
0.00
Herd immunity:
0%