id author title date pages extension mime words sentences flesch summary cache txt cord-346576-gtkx1r4a Lapolla, Pierfrancesco Privacy versus safety in contact-tracing apps for coronavirus disease 2019 2020-07-14 .txt text/plain 679 48 62 With a view to a gradual exit from lockdown, governments around the world are considering deploying contact-tracing apps to prevent or manage a second wave of coronavirus disease 2019 . 1 Many concerns arise over efficacy, privacy issues and data management by governments or health authorities. A simulation on one million people found that 80% of smartphone users in the UK (56% of the general population) would need to install a contact-tracing app to suppress the epidemic effectively. 2 In Singapore, the first country to deploy a voluntary contact-tracing app (TraceTogether), launched in March, only an estimated 17% of the population installed the app. On 19 April, a letter signed by nearly 300 academics warned that centralised systems can risk surveillance, and suggested that Apple and Google (currently working jointly in developing a contact-tracing app) should consider developing one which uses an opt-in and decentralised system. ./cache/cord-346576-gtkx1r4a.txt ./txt/cord-346576-gtkx1r4a.txt