▁in ▁n urs ing ▁services , ▁clin ics ▁and ▁do ctors ' ▁practices ▁as ▁a ▁state ▁failure . ▁ ▁On ▁ 1 ▁April , ▁the ▁project ▁of ▁a ▁European ▁Cor on av irus ▁app ▁was ▁public ised ▁that , ▁unlike ▁apps ▁of ▁other ▁countries , ▁could ▁satisfy ▁the ▁requirements ▁of ▁the ▁EU ' s ▁string ent ▁data ▁protection , ▁re le as able ▁in ▁Germany ▁around ▁ 1 6 ▁April . ▁The ▁project , ▁titled ▁Pan - Europe an ▁Priv acy - Pres erving ▁Pro xim ity ▁T rac ing ▁( PE PP - PT ), ▁involved ▁eight ▁European ▁countries ▁and , ▁on ▁the ▁German ▁side , ▁participation ▁came ▁from ▁the ▁Fra un ho fer ▁Institute ▁for ▁Tele communic ations , ▁Robert ▁Koch ▁Institute , ▁Techn ical ▁University ▁of ▁Berlin , ▁T U ▁Dresden , ▁University ▁of ▁Er furt , ▁V od af one ▁Germany ▁and ▁( for ▁testing ) ▁Bundes wehr . ▁The ▁app ▁would ▁use ▁Bl uetooth ▁to ▁register ▁close ▁contact ▁to ▁other ▁people ▁with ▁the ▁app ▁an onym ously ▁and ▁warn ▁the ▁user ▁when ▁a ▁person ▁who ▁had ▁previously ▁been ▁in ▁close ▁contact ▁officially ▁registered ▁an ▁in fection . ▁Most ▁German ▁polit icians ▁demanded ▁that ▁public ▁usage ▁should ▁be ▁volunt ary . ▁ ▁Health ▁minister ▁J ens ▁Sp ahn ▁forb id ▁fl ights ▁from ▁Iran , ▁effective ▁immediately , ▁on ▁the ▁basis ▁of ▁the ▁new ▁In fection ▁Prote ction ▁Act . ▁Chan cell or ▁Mer kel ▁extended ▁the ▁social ▁dist ancing ▁measures ▁to ▁ 1 9 ▁April ▁and ▁asked ▁not