Fig. 4: Schematic timeline of the pandemic in the Netherlands during 2020.
From: Model-based evaluation of school- and non-school-related measures to control the COVID-19 pandemic
Outlined are times of the introduction and relaxation of control measures, and the estimated effective reproduction numbers for (a) start of the pandemic (February 2020), (b) full lockdown (April 2020), (c) schools opening (August 2020), and (d) partial lockdown (November 2020). See Supplementary Fig. 4 for the distributions of the reproduction numbers.
