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This paper is in the following e-collection/theme issue:

Digital Contact Tracing, Digital Proximity Tracing, Precision Public Health (188) Infectious Diseases (non-STD/STI) (1943) JMIR Theme Issue: COVID-19 Special Issue (4235) Contact Tracing for Public Health Policy (8) Information and Communication Technology (ICT) for Public Health (41) Mobile Health Technology and Digital Platforms for Public Health (93) Population and Public Health Informatics Policy (43)

Published on in Vol 12 (2026)

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/89472, first published .
Finnish COVID-19 contact tracing app "Koronavilkku" displayed on a smartphone.

Evaluation of the Finnish Exposure Notification App “Koronavilkku” According to Key Performance Indicators: Cross-Sectional Study

Evaluation of the Finnish Exposure Notification App “Koronavilkku” According to Key Performance Indicators: Cross-Sectional Study

Authors of this article:

Wioleta Kitowska1, 2 Author Orcid Image ;   Mika Pihlajamäki2 Author Orcid Image ;   Sara Wickström2 Author Orcid Image ;   Kaija Tolmunen3 Author Orcid Image ;   Otto Helve2 Author Orcid Image ;   Juha Mykkänen2 Author Orcid Image ;   Timothée Dub2 Author Orcid Image ;   Lotta Siira2 Author Orcid Image
Article Authors Cited by Tweetations Metrics

Wioleta Kitowska   1, 2 , MSc ;   Mika Pihlajamäki   2 , MSc ;   Sara Wickström   2 , MA ;   Kaija Tolmunen   3 , MSc ;   Otto Helve   2 , MD, PhD ;   Juha Mykkänen   2 , PhD ;   Timothée Dub   2 , MD ;   Lotta Siira   2 , PhD

1 Field Epidemiology Path (EPIET), ECDC Fellowship Programme, European Centre for Disease Prevention and Control, Stockholm, Sweden

2 Finnish Institute for Health and Welfare (THL), Helsinki, Uusimaa, Finland

3 Gofore Oyj, Helsinki, Finland

Corresponding Author:

  • Lotta Siira, PhD
  • Finnish Institute for Health and Welfare (THL)
  • Mannerheimintie 166
  • Helsinki, Uusimaa 00300
  • Finland
  • Phone: 358 29 524 6000
  • Email: lotta.siira@thl.fi