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Influenza vaccination status ascertainment and vaccine effectiveness estimation: validity of self-report for current and prior season

2026-01-27 infectious diseases Title + abstract only
View on medRxiv
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Accurate vaccination status ascertainment is fundamental to valid vaccine effectiveness (VE) estimation. We evaluated the accuracy of current and prior seasons self-reported influenza vaccination status among outpatients with acute respiratory illness recruited by the Canadian Sentinel Practitioner Surveillance Network (SPSN) during the 2023-2024 season in Quebec, Canada. Vaccination status was self-reported at specimen collection for influenza virus testing and compared to the provincial vaccin...

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