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Folkhälsomyndigheten följer löpande RS-virusets spridning i Sverige genom frivillig rapportering av RS-virus diagnoser från landets laboratorier och en del barnkliniker. Övervakningen sker veckovis under perioden oktober–maj (vecka 40–20).

Här kan du läsa Folkhälsomyndighetens rapporter om RS-virus som publiceras regelbundet när det är säsong.

Sedan oktober 2025 publiceras statistik över läget i Sverige för influensa i lägesrapporten om luftvägsvirus. Veckorapporterna för influensa från föregående säsong är tillgängliga i arkivet nedan.

Här finns 2020 års rapporteringar om de anmälningspliktiga sjukdomarna samlade.

This report describes the monitoring and surveillance systems for influenza in use during the 2024–2025 winter season and the results of both epidemiological and virological surveillance. Data are also compared to previous influenza seasons. See also the tables and figures section as well as the appendices. 

This report describes epidemiological and virological surveillance results for the 2023-2024 influenza season in Sweden. Data are also compared to previous influenza seasons.

Rapporten sammanfattar läget vad gäller de nationella vaccinationsprogrammen och beskriver Folkhälsomyndighetens pågående och möjliga kommande utredningar om nya eller ändrade vaccinationsprogram.

This report describes epidemiological and virological surveillance results for the influenza season of 2022–2023 in Sweden. Data are also compared to previous influenza seasons.

This report describes the monitoring systems for influenza in use during the winter season of 2021–2022 and the results of both epidemiological and virological surveillance. Data are also compared to previous influenza seasons.

This report describes the monitoring systems for influenza in use during the winter season of 2020–2021 and the results of both epidemiological and virological surveillance. Data are also compared to previous influenza seasons.

This report describes the monitoring systems for influenza in use during the winter season of 2019–2020 and the results of both epidemiological and virological surveillance. Data are also compared to previous influenza seasons. The report has been prepared for the World Health Organization (WHO) as part of the Public Health Agency of Sweden's function as a National Influenza Centre (NIC).

Under 2024 firade Folkhälsomyndigheten sitt 10-årsjubileum, fick en ny instruktion och en ny generaldirektör, Olivia Wigzell.

Information från Folkhälsomyndigheten