tracingapp A new german open source project – Corona-Warn-App helps in the fight against the pandemic 4 Jahren ago A new german open source project - Corona-Warn-App helps in the fight against the pandemicDas Bild A new german open… Doctor holding a smartphone with Corona warn-app that helps trace infection chains of SARS-CoV-2 or COVID-19 in Germany 4 Jahren ago Doctor holding a smartphone with Corona warn-app that helps trace infection chains of SARS-CoV-2 or COVID-19 in GermanyDas Bild Doctor…