Table 1.

SIR CTMC model assumptions.

Event	Change $\left(\Delta S,\Delta I\right)$	Probability
Infection	$\left(-1,+1\right)$	$\beta i\frac{s}{N}\Delta t+o\left(\Delta t\right)$
Recovery	$\left(0,-1\right)$	$\gamma i\Delta t+o\left(\Delta t\right)$