Contact tracing apps are vital tools in the fight against coronavirus. But who decides how they work?

Lazar, SethSheel, Meru2020-10-072201-5639http://hdl.handle.net/1885/212378application/pdfen-AU© 2020 The Conversation Media TrustContact tracing apps are vital tools in the fight against coronavirus. But who decides how they work?2020-05-122021-08-01Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0)