Figure 1. Distribution of Omicron variant SARS-CoV-2 cases, Cantabria, Spain, December 2021. A) Transmission period; B) incubation period; C) serial interval. Each panel shows case density over time (top), a typical boxplot (middle), and cumulative distribution for the period (bottom). For the boxplot, the center line indicates the median, the box left and right ends the interquartile range, the error bars 95% CI, and the open circles outliers. SOD, symptom onset date.