SIR model

Threshold:1 Infectious Period:2 Display:2 s,s,s,s,s,s,s,s,s,s s,s,s,s,s,s,s,s,s,s s,s,s,s,s,s,s,s,s,s s,s,s,s,s,s,s,s,s,s s,s,s,s,i,i,s,s,s,s s,s,s,s,i,i,s,s,s,s s,s,s,s,s,s,s,s,s,s s,s,s,s,s,s,s,s,s,s s,s,s,s,s,s,s,s,s,s s,s,s,s,s,s,s,s,s,s