Your browser doesn't support javascript.
Nationwide rollout reveals efficacy of epidemic control through digital contact tracing.
Elmokashfi, Ahmed; Sundnes, Joakim; Kvalbein, Amund; Naumova, Valeriya; Reinemo, Sven-Arne; Florvaag, Per Magne; Stensland, Håkon Kvale; Lysne, Olav.
  • Elmokashfi A; Simula Metropolitan Center for Digital Engineering, Oslo, Norway. ahmed@simula.no.
  • Sundnes J; Simula Research Laboratory, Lysaker, Norway.
  • Kvalbein A; Simula Metropolitan Center for Digital Engineering, Oslo, Norway.
  • Naumova V; Simula Metropolitan Center for Digital Engineering, Oslo, Norway.
  • Reinemo SA; Simula Metropolitan Center for Digital Engineering, Oslo, Norway.
  • Florvaag PM; Simula Research Laboratory, Lysaker, Norway.
  • Stensland HK; Simula Research Laboratory, Lysaker, Norway.
  • Lysne O; Institutt for informatikk, University of Oslo, Oslo, Norway.
Nat Commun ; 12(1): 5918, 2021 10 11.
Article in English | MEDLINE | ID: covidwho-1462004
Preprint
This scientific journal article is probably based on a previously available preprint. It has been identified through a machine matching algorithm, human confirmation is still pending.
See preprint
ABSTRACT
Fuelled by epidemiological studies of SARS-CoV-2, contact tracing by mobile phones has been put to use in many countries. Over a year into the pandemic, we lack conclusive evidence on its effectiveness. To address this gap, we used a unique real world contact data set, collected during the rollout of the first Norwegian contact tracing app in the Spring of 2020. Our dataset involves millions of contacts between 12.5% of the adult population, which enabled us to measure the real-world app performance. The technological tracing efficacy was measured at 80%, and we estimated that at least 11.0% of the discovered close contacts could not have been identified by manual contact tracing. Our results also indicated that digital contact tracing can flag individuals with excessive contacts, which can help contain superspreading related outbreaks. The overall effectiveness of digital tracing depends strongly on app uptake, but significant impact can be achieved for moderate uptake numbers. Used as a supplement to manual tracing and other measures, digital tracing can be instrumental in controlling the pandemic. Our findings can thus help informing public health policies in the coming months.
Subject(s)

Full text: Available Collection: International databases Database: MEDLINE Main subject: Contact Tracing / Pandemics / COVID-19 Type of study: Observational study Limits: Humans Country/Region as subject: Europa Language: English Journal: Nat Commun Journal subject: Biology / Science Year: 2021 Document Type: Article Affiliation country: S41467-021-26144-8

Similar

MEDLINE

...
LILACS

LIS


Full text: Available Collection: International databases Database: MEDLINE Main subject: Contact Tracing / Pandemics / COVID-19 Type of study: Observational study Limits: Humans Country/Region as subject: Europa Language: English Journal: Nat Commun Journal subject: Biology / Science Year: 2021 Document Type: Article Affiliation country: S41467-021-26144-8