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. 2024 Jan;29(2):2300709.
doi: 10.2807/1560-7917.ES.2024.29.2.2300709.

Early influenza vaccine effectiveness estimates using routinely collected data, Alberta, Canada, 2023/24 season

Christa Smolarchuk  1   2 , Carla Ickert  1   2 , Nathan Zelyas  3 , Jeffrey C Kwong  4   5   6   7   8 , Sarah A Buchan  4   5   6   9   10
Affiliations

Early influenza vaccine effectiveness estimates using routinely collected data, Alberta, Canada, 2023/24 season

Christa Smolarchuk et al. Euro Surveill. 2024 Jan.

Abstract

Timely and precise influenza vaccine effectiveness (VE) estimates are needed to guide public health messaging and impact vaccine uptake immediately. Using routinely collected laboratory, vaccination and health administrative data from Alberta, Canada, we estimated influenza VE against infection for the 2023/24 season on a near real-time basis, to late December, at 61% (95% CI: 58-64) against influenza A(H1N1), 49% (95% CI: 28-63) against influenza A(H3N2) and 75% (95% CI: 58-85) against influenza B.

Keywords: Epidemiology; Influenza; Influenza Vaccines; Vaccine Effectiveness.

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Conflict of interest statement

Conflict of interest: None declared.

Figures

Figure
Figure
Weekly cumulative influenza vaccine effectiveness estimates by influenza type/subtype, 2023/24 season, Alberta, Canada, 29 October 2023 (week 44)–30 December 2023 (week 52)
See this image and copyright information in PMC

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