Figure 4From: The impact of digital contact tracing on the SARS-CoV-2 pandemic—a comprehensive modelling studySimplified structure of the compartmental model. The model is based on a SEIR-type model from Ref. [58] and distinguishes between untraced (gray) and traced (blue) individuals. A detailed description of the model and its variables can be found in Appendix A.1Back to article page