The Corona-Warn-App is an important tool in responding to the pandemic. The RWTH Crisis Management Team recommends all university members use the app in order to interrupt possible chains of infection at an early stage. The Robert Koch Institute (RKI) provides extensive information on using the app for this purpose:
https://www.rki.de/DE/Content/InfAZ/N/Neuartiges_Coronavirus/WarnApp/Warn_App.html
In addition, the RKI has published an overview aimed at individuals taking a coronavirus test (PCR) – for example, in test centers or a family doctor’s office. The poster outlines the five steps required to register the coronavirus test in the app and share it in case of a positive result so that other users of the app can be warned. The poster (RKI notes that it is not accessible) is available here: