1,000,000
Participants
Start Date
October 31, 2025
Primary Completion Date
January 31, 2026
Study Completion Date
July 31, 2026
Norwegian SMS
Individuals receive a SMS in Norwegian language at the start of the influenza season, to remind them they are recommended to get the influenza vaccine. This intervention arm is applicable to all three populations (general population, immigrants born in Poland, immigrants born in Ukraine)
Polish/Ukrainian SMS
Individuals receive an SMS in the official language of their native country (i.e., Polish or Ukrainian) at the start of the influenza season, to remind them they are recommended to get the influenza vaccine. This intervention arm is only applicable to the two immigrant populations (immigrants born in Poland, immigrants born in Ukraine)
University of Oslo
OTHER
Finnish Institute for Health and Welfare
OTHER_GOV
University of Turku
OTHER
University Hospital, Akershus
OTHER
Norwegian Institute of Public Health
OTHER_GOV