A modelling study highlights the power of detecting and isolating asymptomatic or very mildly affected individuals for COVID-19 epidemic management

Table 2 The model’s parameters

Parameter	Meaning	value	References
R₀	Basic reproduction number	4	Flaxman et al. .2020 [2]
D_inc	Incubation period (days)	5	Flaxman et al. .2020 [2]
D_inf	Time for which a symptomatic individual is infectious (days)	4	Li et al. 2020 [8]
D_rec	Time to recover for M and H cases that do not require ICU (days)	14	Fang et al. 2020 [11]
D_recA	Time to recover (negativize PCR) for an I_A (days)	7	Zhang et al. 2020 [10, 12]
D_lag	Time for H to require ICU (days)	7	[6]
D_recICU	Time for H_ICU to recover in ICU (days)	14	Fang et al. 2020 [11]
p_A	Probability of an infected patient to be asymptomatic	0.9	Li et al. 2020 [8]
p_H	Probability of a symptomatic individual to require hospitalization	0.1	Verity et al. 2020, Ferguson et al. 2020 [3, 9]
p_ICU	Probability of H to require ICU	0.36	Verity et.al 2020, Ferguson et al. 2020 [3, 9]
p_F	Probability of H_ICU to die	0.5	Ferguson et al. 2020 [9]
f_A	Attenuation factor for asymptomatic patients	0.5	Li et al. 2020 [8]

* Table 2: Parameters used for our SEIR model, their value and the bibliography that supports them

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