Co-circulation of influenza A(H1N1)pdm09 and influenza A(H3N2) viruses, World Health Organization (WHO) European Region, October 2018 to February 2019

In the World Health Organization European Region, the 2018/19 influenza season started in week 49 2018, crossing 10% virus-positivity in sentinel surveillance specimens. At week 5 2019, activity remained elevated with positivity rates at 55%. Both A(H1N1)pdm09 and A(H3N2) viruses circulated widely a...

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Bibliographic Details
Published in:Euro surveillance : bulletin européen sur les maladies transmissibles 2019-02, Vol.24 (9)
Main Authors: Segaloff, Hannah, Melidou, Angeliki, Adlhoch, Cornelia, Pereyaslov, Dmitriy, Robesyn, Emmanuel, Penttinen, Pasi, Olsen, Sonja J, Region, Who European
Format: Article
Language:English
Subjects:
Age Distribution
Aged
Disease Outbreaks
Epidemiology
Europe - epidemiology
Hospitalization - statistics & numerical data
Humans
Influenza
Influenza A Virus, H1N1 Subtype - isolation & purification
Influenza A Virus, H3N2 Subtype - isolation & purification
Influenza, Human - diagnosis
Influenza, Human - epidemiology
Influenza, Human - prevention & control
Influenza, Human - virology
Life Sciences
Middle Aged
Prevalence
Public health
Rapid Communication
Seasons
Sentinel Surveillance
Viruses
World Health Organization
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Summary:In the World Health Organization European Region, the 2018/19 influenza season started in week 49 2018, crossing 10% virus-positivity in sentinel surveillance specimens. At week 5 2019, activity remained elevated with positivity rates at 55%. Both A(H1N1)pdm09 and A(H3N2) viruses circulated widely and detection levels in primary care and hospital settings were similar to past seasons. Hospitalisation data may suggest an increased susceptibility to A(H1N1)pdm09 virus in older age groups.
ISSN:1560-7917
1025-496X
1560-7917
1025-496X
DOI:10.2807/1560-7917.ES.2019.24.9.1900125