Alliance for Pandemic Preparedness

September 28, 2020

The Association between Influenza Vaccination and the Risk of SARS-CoV-2 Infection Severe Illness and Death a Systematic Review of the Literature

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  • [Pre-print, not peer-reviewed] A systematic review of 12 studies found that receiving seasonal influenza vaccination was not associated with greater risk of SARS-CoV-2 infection or disease severity in any studies. Several studies found that influenza vaccination was associated with lower risk of SARS-CoV-2 infection, while others found no relationship (7 studies, 242,323 patients). Similarly, several studies found that influenza vaccination was associated with reduced severity of COVID-19 severity, while others found no relationship (5 studies, 111,820).

Riccio et al. (Sept 27, 2020). The Association between Influenza Vaccination and the Risk of SARS-CoV-2 Infection Severe Illness and Death a Systematic Review of the Literature. Pre-print downloaded Sept 28 from https://doi.org/10.1101/2020.09.25.20201350