Effectiveness of the severe acute respiratory syndrome coronavirus 2 Omicron BA.5 bivalent vaccine on symptoms in healthcare workers with BA.5 infection.

ABSTRACT:

Background

The infection status of healthcare workers (HCWs) with coronavirus disease 2019 has become a major concern worldwide. In this study, we investigated the efficacy of the number of vaccine doses on symptoms after BA.5-adapted bivalent vaccination in HCWs.

Methods

We analyzed the occupation, route of infection, symptoms, and vaccination history of all HCWs who tested positive for severe acute respiratory syndrome coronavirus 2 and worked in our hospital from November 2020 to March 2023. A logistic regression analysis was performed to examine the association between the presence of BA.5-adapted bivalent vaccination and symptoms.

Results

During the observation period, 531 HCWs became infected. Of these, 72 % were women, with a median age of 30 years. Nurses acco

SUBMITTER: Hirotsu Y 

PROVIDER: S-EPMC10826328 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature