Epidemic Awareness-Behavior Coupled SIR

Epidemic spreading coupled with behavioral response — awareness reduces transmission
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R₀:
Peak I:
Final R:
Awareness peak:
Coupled SIR + awareness (Funk et al. 2009, PRSB): effective β(t) = β·e^{-α·A}, where A is awareness level spreading through population. Information spreads at rate ω per S-A contact, decays at κ. Creates feedback loop: more infected → more aware → less transmission → suppresses outbreak.