Journal article
The impact of repeated vaccination using 10-year vaccination history on protection against influenza in older adults: a test-negative design study across the 2010/11 to 2015/16 influenza seasons in Ontario, Canada
Abstract
IntroductionAnnual influenza vaccination is recommended for older adults, but evidence regarding the impact of repeated vaccination has been inconclusive.AimWe investigated vaccine effectiveness (VE) against laboratory-confirmed influenza and the impact of repeated vaccination over 10 previous seasons on current season VE among older adults.MethodsWe conducted an observational test-negative study in community-dwelling adults aged > 65 years in …
Authors
Kwong JC; Chung H; Jung JK; Buchan SA; Campigotto A; Campitelli MA; Crowcroft NS; Gubbay JB; Karnauchow T; Katz K
Journal
Eurosurveillance, Vol. 25, No. 1,
Publisher
European Centre for Disease Control and Prevention (ECDC)
Publication Date
January 9, 2020
DOI
10.2807/1560-7917.es.2020.25.1.1900245
ISSN
1025-496X