Theoretical models help us understand infectious diseases 口Susceptible(St) Birth------ Infected (1) Recovered(Rt) XSIS Susceptible Infected People can move from group to group ViSt Susceptible infected, recovered,or death Recovered Infected→recovered Ad St Xdlt or death ▣Recovered→death Death Bhattacharya,Hyde and Tu-HealthEconomics
Bhattacharya, Hyde and Tu – Health Economics Theoretical models help us understand infectious diseases Susceptible (St ) Infected (It ) Recovered (Rt ) People can move from group to group Susceptible → infected, recovered, or death Infected → recovered or death Recovered → death
SIR model Ap number of births Birth---- ASIS Susceptible Infected ViS: Recovered Ad St Aalt AdgRr Death Bhattacharya,Hyde and Tu-HealthEconomics
Bhattacharya, Hyde and Tu – Health Economics Λb = number of births SIR model