Effectiveness of influenza vaccination against SARS-CoV-2 infection among healthcare workers in Qatar.

ABSTRACT:

Background

Some studies have reported that influenza vaccination is associated with lower risk of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and/or coronavirus disease 2019 (COVID-19) morbidity and mortality. This study aims to estimate effectiveness of influenza vaccination, using Abbott's quadrivalent Influvac Tetra vaccine, against SARS-CoV-2 infection and against severe COVID-19.

Methods

This matched, test-negative, case-control study was implemented on a population of 30,774 healthcare workers (HCWs) in Qatar during the 2020 annual influenza vaccination campaign, September 17, 2020-December 31, 2020, before introduction of COVID-19 vaccination.

Results

Of 30,774 HCWs, 576 with PCR-positive tests and 10,033 with exclusively PCR-negative

SUBMITTER: Tayar E 

PROVIDER: S-EPMC9791790 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature