Table 1 Main parameters of the model and their numerical values. In particular, transmission rates in urban and university populations are expressed by means of the reproduction numbers r₀ and R₀ in these two populations, respectively

Se

Test sensitivity

Fixed

[−]

0.65

Sp

Test specificity

Fixed

[−]

0.99

μ

Return Rate of false positive

Fixed

[day⁻¹]

1/3

θ

Rate of advance to asymptomatic

Fixed

[day⁻¹]

1/3

ρ

Rate of recovery

Fixed

[day⁻¹]

1/14

f_s

Rate of symptom development

Fixed

[%]

30%

f_r

Fatality risk

Fixed

[−]

0.0005

β, κ, b, k

Transmission rates (exogenous and endogenous)

Variable

[day⁻¹]

[0.03–0.6]

r_T

Reproduction number in external population

Identified

[−]

[0.6–3.5]

R_T

Reproduction number in university population

Identified

[−]

[0.6–3.5]

n_E

Size of external population

Variable

[indiv.]

{11.4e6; 0.6e3}

n_U

Size of university population

Fixed

[indiv.]

[30,000]

τ

Testing frequency

Variable

[day⁻¹]

{0, 1/7, 2/7}

f_p

Participation rate

Variable

[%]

[0–100%]