Network & Disease
Legend
Susceptible
Infectious
Recovered
R₀ = β⟨k²⟩/(γ⟨k⟩)
Heterogeneous mean field
For scale-free (γ_net→2):
⟨k²⟩→∞ ⟹ R₀→∞
Epidemic threshold → 0
"Hubs" drive outbreak!
Heterogeneous mean field
For scale-free (γ_net→2):
⟨k²⟩→∞ ⟹ R₀→∞
Epidemic threshold → 0
"Hubs" drive outbreak!
Real-time Stats
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