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• 12:31, 21 April 2020 Genferei talk contribs created page contact tracing application (Q4513) (wbeditentity-create:2|en: contact tracing application, program that can be installed on a user’s personal device, which determines when a person has come into contact with a person or number of persons infected with COVID-19, and subsequently notifies either the person or a public health authority)