Influenza Vaccine Does Not Increase the Risk of Coronavirus or Other Noninfluenza Respiratory Viruses: Retrospective Analysis From Canada, 2010-2011 to 2016-2017.

Skowronski, Danuta M; Zou, Macy; Clarke, Quinten; Chambers, Catharine; Dickinson, James A; Sabaiduc, Suzana; Olsha, Romy; Gubbay, Jonathan B et al. · Clin Infect Dis · 2020

retrospective_cohort · Level III

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Abstract

Influenza vaccine effectiveness against influenza and noninfluenza respiratory viruses (NIRVs) was assessed by test-negative design using historic datasets of the community-based Canadian Sentinel Practitioner Surveillance Network, spanning 2010-2011 to 2016-2017. Vaccine significantly reduced the risk of influenza illness by >40% with no effect on coronaviruses or other NIRV risk.

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