Blar i Norwegian Institute of Public Health Open Repository på forfatter "Tønnessen, Ragnhild"
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Age-specific associations between underlying health conditions and hospitalisation, death and in-hospital death among confirmed COVID-19 cases: a multi-country study based on surveillance data, June to December 2020
Funk, Tjede; Innocenti, Francesco; Gomes Dias, Joana; Nerlander, Lina; Melillo, Tanya; Gauci, Charmaine; Melillo, Jackie M.; Lenz, Patrik; Sebestova, Helena; Slezak, Pavel; Vlckova, Iva; Berild, Jacob Dag; Mauroy, Camilla; Seppälä, Elina Marjukka; Tønnessen, Ragnhild; Vergison, Anne; Mossong, Joël; Masi, Silvana; Huiart, Laetitia; Cullen, Gillian; Murphy, Niamh; O'Connor, Lois; O'Donnell, Joan; Mook, Piers; Pebody, Richard G.; Bundle, Nick (Peer reviewed; Journal article, 2022)BackgroundUnderlying conditions are risk factors for severe COVID-19 outcomes but evidence is limited about how risks differ with age.AimWe sought to estimate age-specific associations between underlying conditions and ... -
Detecting flu outbreaks based on spatiotemporal information from urban systems - designing a novel study
Grottenberg, Lars Ole; Njå, Ove; Tøssebro, Erlend; Braut, Geir Sverre; Tønnessen, Ragnhild; Grøneng, Gry Marysol (Peer reviewed; Journal article, 2018) -
European all-cause excess and influenza-attributable mortality in the 2017/18 season: should the burden of influenza B be reconsidered?
Nielsen, Jens C.; Vestergaard, Lasse S.; Richter, Lucas; Schmid, D.; Bustos, N.; Asikainen, T.; Trebbien, Ramona; Denissov, Gleb; Innos, Kaire; Virtanen, Mikko J.; Fouillet, Anne; Lytras, Theodore; Gkolfinopoulou, Kassiani D.; an der Heiden, Matthias; Grabenhenrich, Linus; Uphoff, Helmut; Paldy, Anna; Bobvos, Janos; Domegan, Lisa; O'Donnell, Joan M.; Scortichini, Matteo; de Martino, Annamaria; Mossong, Joël; England, Kathleen; Melillo, J.; van Asten, Liselotte; de Lange, Marit M.A.; Tønnessen, Ragnhild; White, Richard Aubrey; da Silva, S.P.; Rodrigues, Ana P; Larrauri, Amparo; Mazagatos, Clara; Farah, A.; Carnahan, Annasara D.; Junker, Christoph; Sinnathamby, Mary; Pebody, Richard G.; Andrews, Nick; Reynolds, Arlene; McMenamin, James J.; Brown, Caroline; Adlhoch, Cornelia; Penttinen, Pasi; Mølbak, Kåre; Krause, Tyra Grove (Peer reviewed; Journal article, 2019) -
Excess all-cause and influenza-attributable mortality in Europe, December 2016 to February 2017
Vestergaard, L S; Nielsen, J; Krause, T G; Tønnessen, Ragnhild; White, Richard (Peer reviewed; Journal article, 2017) -
Excess all-cause mortality during the COVID-19 pandemic in Europe – preliminary pooled estimates from the EuroMOMO network, March to April 2020
Vestergaard, Lasse S.; Nielsen, Jens; Richter, Lukas; Schmid, Daniela; Bustos, Natalia; Braeye, Toon; Denissov, Gleb; Veideman, Tatjana; Luomala, Oskari; Möttönen, Teemu; Fouillet, Anne; Caserio-Schönemann, Céline; der Heiden, Matthias an; Uphoff, Helmut; Lytras, Theodore; Gkolfinopoulou, Kassiani; Paldy, Anna; Domegan, Lisa; O’Donnell, Joan; de’ Donato, Francesca; Noccioli, Fiammetta; Hoffmann, Patrick; Velez, Telma; England, Kathleen; van Asten, Liselotte; White, Richard Aubrey; Tønnessen, Ragnhild; da Silva, Susana P.; Rodrigues, Ana Paula; Larrauri, Amparo; Delgado-Sanz, Concepción; Farah, Ahmed; Galanis, Ilias; Junker, Christoph; Perisa, Damir; Sinnathamby, Mary; Andrews, Nick; O’Doherty, Mark; Marquess, Diogo F.P.; Kennedy, Sharon; Olsen, Sonja J.; Pebody, Richard; Krause, Tyra G.; Mølbak, Kåre (Peer reviewed; Journal article, 2020) -
Influensasesongen i Norge 2013–14: årsrapport
Hauge, Siri Helene; Hungnes, Olav; Rydland, Kjersti Margrethe; Tønnessen, Ragnhild; Oftung, Fredrik; Mjaaland, Siri; Trogstad, Lill; Håberg, Siri Eldevik; Waalen, Kristian; Bragstad, Karoline; De Blasio, Birgitte Freiesleben; Robertson, Anne Hayman (Research report, 2014) -
Influensasesongen i Norge 2015-16. Årsrapport
Hungnes, Olav; Hauge, Siri Helene; Rydland, Kjersti Margrethe; Waalen, Kristian; Robertson, Anna Hayman; Tønnessen, Ragnhild; Bragstad, Karoline; Nordstrand, Karine; Morken, Marianne; Lund, Anne Maria; Madsen, Marie Paulsen; Ramos-Ocao, Remilyn Vicenta R.; Johansen, Valentina Morales; Aune, Torstein; Grøneng, Gry Marysol; Konsmo, Kirsten; Scharffenberg, Tora Alexandra Ziesler; Dudman, Susanne Gjeruldsen; DORENBERG, DAGNY HAUG (Research report, 2016) -
Influensasesongen i Norge 2017-18. Årsrapport
Bragstad, Karoline; Hungnes, Olav; Waalen, Kristian; Aune, Torstein; Tønnessen, Ragnhild; Rydland, Kjersti Margrethe; Klüwer, Birgitte; Hauge, Siri Helene (Influensasesongen i Norge … årsrapport, Research report, 2018) -
Influensasesongen i Norge 2018-19.
Bragstad, Karoline; Hungnes, Olav; Paulsen, Trine Hessevik; Tønnessen, Ragnhild; Aune, Torstein; Waalen, Kristian; Rydland, Kjersti Margrethe; Klüwer, Birgitte; Hauge, Siri Helene (Research report, 2019) -
Influensasesongen i Norge 2019-2020
Bragstad, Karoline; Hungnes, Olav; Paulsen, Trine Hessevik; Tønnessen, Ragnhild; Rydland, Kjersti Margrethe; Klüwer, Birgitte; Aune, Torstein; Hauge, Siri Helene (Research report, 2020)Hovedbudskap • Basert på legebesøk for influensalignende sykdom (ILS), begynte 2019-20-sesongens influensautbrudd i uke 52. Influensatoppen ble nådd i uke 8 og utbruddet nådde kun lavt nivå, noe som indikerer at utbruddet ... -
Influensasesongen i Norge 2020-2021 - årsrapport
Bragstad, Karoline; Paulsen, Trine Hessevik; Tønnessen, Ragnhild; Klüwer, Birgitte; Rydland, Kjersti Margrethe; Aune, Torstein; Hungnes, Olav (Research report, 2021)Hovedbudskap • Influensautbruddet i Norge uteble sesongen 2020-2021. • Andelen influensalignende sykdom overskred aldri utbruddsterskelen. • Det var ingen rapporterte utbrudd av influensa i helseinstitusjoner. • Antallet ... -
Influenza Virological and Epidemiological season report prepared for the WHO Consultation on the Composition of Influenza Virus Vaccines for the Southern Hemisphere 2022
Bragstad, Karoline; Paulsen, Trine Hessevik; Tønnessen, Ragnhild; Klüwer, Birgitte; Rydland, Kjersti Margrethe; Aune, Torstein; Hungnes, Olav (Research report, 2021)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 ... -
Influenza Virological and Epidemiological season report, October 2022. The 2021-2022 influenza season, Norway
Bragstad, Karoline; Paulsen, Trine Hessevik; Seppälä, Elina Marjukka; Tønnessen, Ragnhild; Klüwer, Birgitte; Rydland, Kjersti Margrethe; Moen, Line Victoria; Rohringer, Andreas; Aune, Torstein; Hungnes, Olav (Research report, 2022)Summary • There was no influenza outbreak in Norway during the preceding 2020-2021 season. • Consistent with the very low influenza activity during the preceding two seasons, seroprevalence against contemporary influenza ... -
Interim Influenza Virological and Epidemiological season report prepared for the WHO Consultation on the Composition of Influenza Virus Vaccines for the Northern Hemisphere 2023/2024
Hungnes, Olav; Paulsen, Trine Hessevik; Rohringer, Andreas; Seppälä, Elina Marjukka; Tønnessen, Ragnhild; Bøås, Håkon; Dahl, Jesper; Fossum, Even; Stålcrantz, Jeanette; Klüwer, Birgitte; Rydland, Kjersti Margrethe; Aune, Torstein; Bragstad, Karoline (Research report, 2023)Hovedbudskap • Influensautbruddet i den foregående 2021-2022-sesongen kom uvanlig sent. Utbruddet begynte å vokse seg stort først i mars, etter at smittverntiltakene mot covid-19 ble hevet i midten av februar. Det store ... -
Norway National Influenza Centre: Influenza Virological and Epidemiological Information prepared for the WHO Consultation on the Composition of Influenza Virus Vaccines for the Northern Hemisphere 2019–2020 Beijing, February 2019
Bragstad, Karoline; Waalen, Kristian; Paulsen, Trine Hessevik; Tønnessen, Ragnhild; Aune, Torstein; Klüwer, Birgitte; Rydland, Kjersti Margrethe; Hungnes, Olav (Research report, 2019) -
Norway National Influenza Centre: Influenza Virological and Epidemiological Information prepared for the WHO Consultation on the Composition of Influenza Virus Vaccines for the Northern Hemisphere 2019–2020 Geneva, February 2020
Bragstad, Karoline; Paulsen, Trine Hessevik; Tønnessen, Ragnhild; Klüwer, Birgitte; Rydland, Kjersti Margrethe; Hungnes, Olav (Research report, 2020)• Seroepidemiology data from August 2019 indicate that immunity in Norway against circulating influenza A(H1N1) was quite strong, with considerable immunity also against clade 3C.2a A(H3N2) viruses but with much poorer ... -
Norway National Influenza Centre: Influenza Virological and Epidemiological Information prepared for the WHO Consultation on the Composition of Influenza Virus Vaccines for the Southern Hemisphere 2020. 2020 Geneva, September 2019
Bragstad, Karoline; Paulsen, Trine Hessevik; Tønnessen, Ragnhild; Klüwer, Birgitte; Rydland, Kjersti Margrethe (Research report, 2019) -
Sykehusinnleggelser med covid-19 ‒ en sammenligning av ulike datakilder
Whittaker, Robert Neil; Grøsland, Mari; Buanes, Eirik Alnes; Beitland, Sigrid; Bryhn, Bente; Helgeland, Jon; Sjøflot, Olav Isak Rokstad; Berild, Jacob Dag; Seppälä, Elina Marjukka; Tønnessen, Ragnhild; Telle, Kjetil Elias (Peer reviewed; Journal article, 2020) -
Urbanization and preparedness for outbreaks with high-impact respiratory pathogens
Hauge, Siri Helene; Meijerink, Hinta; Alveberg, Benedikte Louise; Berg, Are Stuwitz; Bergh, Anne; Bragstad, Karoline; De Blasio, Birgitte Freiesleben; Eriksen-Volle, Hanne-Merete; Feruglio, Siri Laura; Forland, Frode; Grøneng, Gry Marysol; Holme, Jørn Andreas; Hungnes, Olav; Iversen, Bjørn Gunnar; Johansen, Julie Denise Whittle; Jønsrud, Knut; Macdonald, Emily Ann; Nygård, Karin Maria; Nøkleby, Hanne Magdalene; Paulsen, Trine Hessevik; Rolfheim-Bye, Christina Lill; Rydland, Kjersti Margrethe; Tønnessen, Ragnhild; Veire, Kjetil Berg; Vold, Line; White, Richard Aubrey; Wisløff, Torbjørn; Wolden, Britt (Research report, 2020)Urban areas are heterogeneous and therefore implementation of the recommendations of this report will be determined by a city’s available resources, current preparedness, as well as adjusting them to local needs and ... -
Utbrudd av smittsomme sykdommer i Norge i 2014
Guzmán Herrador, Bernardo Rafael; Berg, Thale Cathrine; Bjørnholt, Jørgen; Elstrøm, Petter; Kacelnik, Oliver; Kapperud, Georg; Lange, Heidi; Macdonald, Emily Ann; Tønnessen, Ragnhild; Vold, Line; Nygård, Karin Maria (Utbrudd av smittsomme sykdommer i Norge i ... : årsrapport / Vevbasert system for utbruddsvarsling (Vesuv), Research report, 2015)