COVID-19 vaccine effectiveness among healthcare workers during the Omicron period in the country of Georgia, January - June 2022.

ABSTRACT:

Introduction

Understanding COVID-19 vaccine effectiveness (VE) in healthcare workers (HCWs) is critical to inform vaccination policies. We measured COVID-19 VE against laboratory-confirmed symptomatic infection in HCWs in the country of Georgia from January - June 2022, during a period of Omicron circulation.

Methods

We conducted a cohort study of HCWs in six hospitals in Georgia. HCWs were enrolled in early 2021. Participants completed weekly symptom questionnaires. Symptomatic HCWs were tested by RT-PCR and/or rapid antigen test (RAT). Participants were also routinely tested, at varying frequencies during the study period, for SARS-CoV-2 by RT-PCR or RAT, regardless of symptoms. Serology was collected quarterly throughout the study and tested by electrochemiluminescence im

SUBMITTER: Ward CL 

PROVIDER: S-EPMC12094764 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature