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Model published Health

SIR Epidemic Model

Classic Susceptible-Infected-Recovered compartment model for infectious disease dynamics. Tracks how a population transitions through infection stages based on transmission and recovery rates.

Open in Comdyn
Author CIDX Catalog
Created Mar 10, 2026
Updated Mar 10, 2026
Compartments 3
Flows 2
Parameters 2
epidemiologySIRinfectious-diseasecompartment-model

Compartments

NameColorInitial Fraction
Susceptible #4CAF500.99
Infected #FF57220.01
Recovered #2196F30

Flows

FromToRate
SIbeta * S * I
IRgamma * I

Parameters

NameLabelDefaultRange
betaTransmission rate0.30.01 – 1
gammaRecovery rate0.10.01 – 0.5

User-Facing States

Susceptible S
Infected I
Recovered R