dc.contributor.author | Bragstad, Karoline | |
dc.contributor.author | Paulsen, Trine Hessevik | |
dc.contributor.author | Tønnessen, Ragnhild | |
dc.contributor.author | Klüwer, Birgitte | |
dc.contributor.author | Rydland, Kjersti Margrethe | |
dc.contributor.author | Aune, Torstein | |
dc.contributor.author | Hungnes, Olav | |
dc.date.accessioned | 2021-11-12T08:15:54Z | |
dc.date.available | 2021-11-12T08:15:54Z | |
dc.date.created | 2021-11-10T12:32:49Z | |
dc.date.issued | 2021 | |
dc.identifier.isbn | 978-82-8406-246-4 | |
dc.identifier.uri | https://hdl.handle.net/11250/2829239 | |
dc.description.abstract | Summary
There was no influenza outbreak in Norway during 2020-2021.
The proportion of influenza-like illness (ILI) never exceeded the epidemic threshold.
No outbreaks of influenza in health care institutions were reported.
The numbers of influenza hospitalisations and ICU admissions were very low.
All-cause mortality was within expected levels or below.
Only 20 sporadic cases of influenza were detected out of 155,198 analyses during the
season. Of these, 7 were A(H3N2), 2 A(H1N1), 8 B (not genotyped) and 3 B/Victoria. No
B/Yamagata lineage viruses were detected.
The influenza A(H3N2) viruses belonged to the 3C.2a1b/159N subgroup of viruses and
were characterised to be genetically similar to the antigenic different group of viruses
like A/Bangladesh/100009/2020.
The influenza B-cases belonged to the B-Victoria lineage (162-164) and the antigenic
different group of viruses originating from West Africa.
The H1N1 viruses belonged to 6B.1A/183P-7. | en |
dc.description.abstract | Hovedbudskap
• Influensautbruddet i Norge uteble sesongen 2020-2021.
• Andelen influensalignende sykdom overskred aldri utbruddsterskelen.
• Det var ingen rapporterte utbrudd av influensa i helseinstitusjoner.
• Antallet sykehusinnleggelser og intensivinnleggelser med influensa var uvanlig lavt.
• Totaldødeligheten i Norge var på forventet nivå eller lavere.
• Det var høy oppslutning rundt vaksinasjonsprogrammet. Antallet distribuerte doser økte med 33 % fra sesongen 2019/20.
• Bare 20 tilfeller av influensa ble påvist i Norge i løpet av sesongen av totalt 155.196 prøver analysert.
• Disse var 7 A(H3N2), 2 A(H1N1), 8 influensa B ikke varianttypet og 3 B/Victoria. Ingen B/Yamagata ble påvist.
• Influensa A(H3N2) virusene tilhørte den genetiske undergruppen 3C.2a1b/159N og ligner de antigent forskjellige A/Bangladesh/100009/2020 virus.
Influensa B tilhørte B-Victoria linjen med trippeldelesjonen (162-164) og er vist å ligne de antigent forskjellige influensa B-virus fra Vest Afrika.
Influensa A(H1N1) virusene tilhørte den genetiske gruppen 6B.1A/183P-2. | no |
dc.language.iso | eng | |
dc.publisher | Norwegian Institute of Public Health, Division of Infection Control and Environmental Health, Department of Virology, Department of Infection Control and Vaccines | |
dc.relation.uri | https://www.fhi.no/globalassets/dokumenterfiler/rapporter/2021/niph_nic-norway-2020-2021-influenza-season-report-for-who-vcm-september-2021.pdf | |
dc.subject.mesh | Viral Vaccines | en |
dc.subject.mesh | Influenza Vaccines | en |
dc.subject.mesh | Influenza, Human | en |
dc.subject.mesh | Epidemiological Monitoring | en |
dc.subject.mesh | Geographic Mapping | en |
dc.subject.mesh | Norway | en |
dc.subject.mesh | Epidemiologisk overvåking | no |
dc.title | Influenza Virological and Epidemiological season report prepared for the WHO Consultation on the Composition of Influenza Virus Vaccines for the Southern Hemisphere 2022 | |
dc.type | Research report | |
dc.description.version | publishedVersion | |
dc.source.pagenumber | 21 | |
dc.identifier.cristin | 1953163 | |
dc.subject.keyword | Influensa | no |
dc.subject.keyword | Norge | no |
dc.subject.keyword | Influensautbruddet | no |
dc.subject.keyword | Vaksinasjonsprogrammet | no |
cristin.ispublished | true | |
cristin.fulltext | original | |