Interim estimates of 2019/20 vaccine effectiveness during early-season co-circulation of influenza A and B viruses, Canada, February 2020

Interim estimates of 2019/20 vaccine effectiveness during early-season co-circulation of influenza A and B viruses, Canada, February 2020

Interim results from Canada's Sentinel Practitioner Surveillance Network show that during a season characterised by early co-circulation of influenza A and B viruses, the 2019/20 influenza vaccine has provided substantial protection against medically-attended influenza illness. Adjusted VE over...

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Veröffentlicht in:Euro surveillance : bulletin européen sur les maladies transmissibles 2020-02, Vol.25 (7)
Hauptverfasser: Skowronski, Danuta M, Zou, Macy, Sabaiduc, Suzana, Murti, Michelle, Olsha, Romy, Dickinson, James A, Gubbay, Jonathan B, Croxen, Matthew A, Charest, Hugues, Jassem, Agatha, Krajden, Mel, Bastien, Nathalie, Li, Yan, De Serres, Gaston
Format: Artikel
Sprache:eng
Schlagworte:
Immunization
Influenza
Rapid Communication
Vaccines
Viral infections
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Zusammenfassung:Interim results from Canada's Sentinel Practitioner Surveillance Network show that during a season characterised by early co-circulation of influenza A and B viruses, the 2019/20 influenza vaccine has provided substantial protection against medically-attended influenza illness. Adjusted VE overall was 58% (95% confidence interval (CI): 47 to 66): 44% (95% CI: 26 to 58) for A(H1N1)pdm09, 62% (95% CI: 37 to 77) for A(H3N2) and 69% (95% CI: 57 to 77) for influenza B viruses, predominantly B/Victoria lineage.
ISSN:1560-7917
1025-496X
1560-7917
DOI:10.2807/1560-7917.es.2020.25.7.2000103