Early influenza vaccine effectiveness estimates using routinely collected data, Alberta, Canada, 2023/24 season
Christa Smolarchuk, Carla Ickert, Nathan Zelyas, Jeffrey C. Kwong, Sarah A. Buchan
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.
Topics & Concepts
Influenza vaccineInfluenza seasonVaccinationMedicinePublic healthEnvironmental healthSeasonal influenzaLive attenuated influenza vaccineInfluenza A virusVirologyCoronavirus disease 2019 (COVID-19)VirusInternal medicineInfectious disease (medical specialty)DiseaseNursingInfluenza Virus Research StudiesSARS-CoV-2 and COVID-19 ResearchRespiratory viral infections research