Fig. 3
From: Analyzing inherent biases in SARS-CoV-2 PCR and serological epidemiologic metrics
Effect of the prolonged PCR positivity on the observed SARS-CoV-2 epidemic peak. Time difference between the actually-observed epidemic peak in presence of the prolonged PCR positivity and the true epidemic peak based on true incidence of active infection in the population. The prolonged PCR positivity is assumed to last on average for 2, 3, 4, and 6 weeks. Two scenarios are presented, one for an R0 of 1.6 (an epidemic in presence of social and physical distancing interventions) and an R0 of 3.0 (natural course of the epidemic in absence of any social or physical distancing interventions)