Table 1.

Initial conditions assumed for the different subpopulations using the USA current situation (mid-December).

Parameter	Symbol	Value
Latent	$E\left(0\right)$	1,782,857
Infected (symptomatic)	$I\left(0\right)$	1,200,000
Asymptomatic	$A\left(0\right)$	1,200,000
Hospitalized	$H\left(0\right)$	71,552
Susceptible	$S\left(0\right)$	309,974,354
Recovered	$R\left(0\right)$	16,462,937
Total population	$N\left(0\right)$	330,705,643