02114oam 2200661 450 991071376570332120220401170720.0(CKB)5470000002504025(OCoLC)1178996813(OCoLC)995470000002504025(EXLCZ)99547000000250402520200729d2020 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierContact tracing apps[Washington, D.C.] :GAO - Science, Technology Assessment, and Analytics,2020.1 online resource (2 pages) color illustrationsScience & tech spotlight"July 2020.""GAO-20-666SP."Includes bibliographical references (page 2).COVID-19 (Disease)PreventionCOVID-19 (Disease)TransmissionContact tracing (Epidemiology)Public health surveillanceSmartphonesCOVID-19 (Disease)TransmissionfastCOVID-19 (Disease)PreventionfastContact tracing (Epidemiology)fastPublic health surveillancefastSmartphonesfastCOVID-19 (Disease)Prevention.COVID-19 (Disease)Transmission.Contact tracing (Epidemiology)Public health surveillance.Smartphones.COVID-19 (Disease)Transmission.COVID-19 (Disease)Prevention.Contact tracing (Epidemiology)Public health surveillance.Smartphones.United States.Government Accountability Office.Science, Technology Assessment, and Analytics,GPOGPOOCLCFGPOOCLOCLCOOCLCQS2HGPOBOOK9910713765703321Contact tracing apps3282233UNINA