Fig. 8

Undetected cases under various assumptions of the fraction of symptomatic cases (f) and reduced transmissibility of asymptotic individuals (p). a Possible total number of undetected cases (including asymptomatic and symptomatic) with recovery/removal dates after lockdown. b Possible total number of undetected symptomatic cases with recovery/removal dates after lockdown. c Possible percentage (95% CI) of population-wide antibody prevalence level after the outbreak. The number shown in each cell corresponds to the projected value from the model with each combination of (f,p) while \(\gamma _{2}^{-1}=3\,\text {days}\)