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Factors of infection rate

I refer to J.H. Jones’ Notes on R0. Preliminaries The standard SIR model consists of a system of three differential equations ds/dt = -βsi di/dt = βsi – νi dr/dt = νi for the fractions s, i, r of susceptible, infected, and recovered (removed) individuals, dt = 1 day. β is the infection rate, i.e. […]