Table 1.

Transitions and transition probabilities in the stochastic SEIR model. The transition are from state $X={(S,E,I,R)}^{\mathrm{T}}$ to $X^{\prime }$ with probability $W_{X\to X^{\prime }}$

$X^{\prime }$				$W_{X\to X^{\prime }}$
$S-1$	$E+1$	I	R	$\beta SI/N$
S	$E-1$	$I+1$	R	aE
S	E	$I-1$	$R+1$	gI