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Influenza epidemiological information prepared for WHO informal meeting on strain composition for inactivated influenza vaccines for use in season 2018-19 Geneva, Feb 2018

Report submitted by Norway to WHO's influenza vaccine meeting in Geneva, February 2018.

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  • Year: 2018
  • By: Norwegian Institute of Public Health
  • Authors National Influenza Centre in Norway.
  • ISBN (digital): 978-82-8082-907-8



Key message


In February/March, the WHO annually assesses if the components of the influenza vaccine for the northern hemisphere for the coming season should be changed or not.

The WHO National Influenza Centre Norway at the Norwegian Institute of Public Health has prepared a report to the WHO in February 2018.

The report describes the influenza situation in Norway and focuses on immunity in the population and genetic characterisation of influenza viruses circulating in Norway.

The report is based on data from the Norwegian Surveillance System for Influenza.

Together with reports from other countries, the WHO will use this information to determine the composition of the influenza vaccine for the 2018-19 season.