Table 3.

Normalized sensitivity index for each parameter for the COVID-19 model (1).

Parameter	Description	Sensitivity Index
η	Relative transmissibility by asymptomatic individuals	$+0.7367$
ω	Natural death rate	-1.0005
β	Transmission rate by asymptomatic and symptomatic individuals	$+0.8060$
β1	Environmental transmission	$+0.1939$
γ	Proportion of individuals who are timely diagnosis	$+0.1693$
Λ	Recruitment rate	$+1.0000$
k1	Progression rate from exposed to the symptomatic class	$+0.1676$
k2	Progression rate from exposed to the asymptomatic class	$-0.1673$
α	Disease induced death rate	$-0.0112$
ϕ	Proportion of A patients who later move to the I class	$+0.0460$
v1	Progression from asymptomatic to the symptomatic class	$+0.0419$
v2	Progression from asymptomatic to the recovered class	$-0.8263$
ϵ	The rate at which symptomatic patients are recovered	$-0.2043$
τ1	Natural decay rate of virus from the environment (Surfaces)	$-0.1939$
m1	The rate of viral release into the environment by asymptomatic patients	$+0.0477$
m2	The rate at which I patients release virus into the environment	$+0.1461$