Reed-Frost SEIR Model

history (days)

100

250

500

1000

resistance (p)

0.6

contact rate (c)

1

latency period

2

recovery period

5

immune duration

20

initial I fraction

0.03

S

E

I

R

The Reed–Frost model for infection transmission is a discrete time-step version of a standard SIR/SEIR system: Susceptible, Exposed, Infectious, Recovered prevalences (

S

is blue,

E

is purple,

I

is olive/shaded,

R

is green). This Demonstration lets you explore infection history for different choices of parameters, duration periods, and initial

I

fraction.