Fig. 2From: SARS-CoV-2 outbreaks in secondary school settings in the Netherlands during fall 2020; silent circulationCt-values by day since last exposure for nose throat swabs and saliva (n = 46). Ct-values by day since last exposure for nose throat swabs (orange) and saliva (blue). All samples from subjects with at least one positive results are included. Negative results are displayed as Ct-value > 45Back to article page