Fig. 1From: Comparing the incidence of SARS-CoV-2 across age groups considering sampling biases - use of testing data of autumn 2021 in BelgiumNumber of captured cases as a function of the number of tests performed for a perfect targeted sampling strategy (a) and the case of a fully random strategy (b). Relation between the number of performed tests and the error on RI estimation based on (c) PR and (d) OI as a function of the testing strategyBack to article page