Ragnhild Tonnessen
As, Norway
Last Updated: 09/26/2026
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Found 20 publications
Multiple introductions of highly pathogenic avian influenza viruses into the High Arctic: Svalbard and Jan Mayen, 2022-2025.
Journal: The Journal of general virology
Published: August 17, 2026
Detection of Antibodies Specific to H5 Avian Influenza Virus in a Sheep in Norway, June 2024, 11 Months After an Outbreak of Highly Pathogenic Avian Influenza in a Nearby Seabird Colony.
Journal: Influenza and other respiratory viruses
Published: August 15, 2025
A Retrospective Cross-Sectional Study (2009-2023): Exploring Influenza A(H1N1)pdm09 Antibody Time Series in Humans and Swine and Vaccine Coverage in Two Target Groups.
Journal: Zoonoses and public health
Published: June 27, 2025
Highly Pathogenic Avian Influenza A (H5N1) Caused Mass Death Among Black-Legged Kittiwakes (Rissa tridactyla) in Norway, 2023.
Journal: Transboundary and emerging diseases
Published: June 06, 2025
Emergence of highly pathogenic avian influenza viruses H5N1 and H5N5 in white-tailed eagles, 2021-2023.
Journal: The Journal of general virology
Published: November 01, 2024
Registry-Based Surveillance of Severe Acute Respiratory Infections in Norway During 2021-2024.
Journal: Influenza and other respiratory viruses
Published: July 25, 2024
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.
Journal: Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin
Published: September 02, 2022
Molecular epidemiology and antibiotic resistance profiles of invasive Haemophilus influenzae from Norway 2017-2021.
Journal: Frontiers in microbiology
Published: June 20, 2022
Correction: Hospitalisations for COVID-19 - a comparison of different data sources.
Journal: Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke
Published: December 16, 2021
Hospitalisations for COVID-19 - a comparison of different data sources.
Journal: Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke
Published: December 16, 2020
COVID-19 cases reported to the Norwegian Institute of Public Health in the first six weeks of the epidemic.
Journal: Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke
Published: December 16, 2020
Excess all-cause mortality during the COVID-19 pandemic in Europe - preliminary pooled estimates from the EuroMOMO network, March to April 2020.
Journal: Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin
Published: July 10, 2020
Last Updated: 09/26/2026