Fig. 2: SARS-CoV-2 prevalence statistics.
From: Suppression of a SARS-CoV-2 outbreak in the Italian municipality of Vo’
a, The prevalence of SARS-CoV-2 infection at the first survey (x = 73 positive out of n = 2,812 tested) and the second survey (x = 29 positive out of n = 2,343 tested). The error bars represent the 95% exact binomial CI. b, The number of SARS-CoV-2 infections detected in the sampled population of the residents of Vo’ in the first survey (x = 73) and the second survey (x = 29, of which 8 were new infections).
