Prevalence and risk factors of SARS-CoV-2 antibody responses among healthcare workers (June 2020-November 2021).

ABSTRACT:

Background

To assess SARS-CoV-2 seroprevalence in healthcare workers (HCW) with sampling in June and October 2020 and April and November 2021.

Methods

Observational and prospective study in 2455 HCW with serum sampling. Antibodies against SARS-CoV-2 nucleocapsid and occupational, social and health risk factors were assessed at each time point.

Results

Seropositivity for SARS-CoV-2 in HCW increased from 11.8% in June 2020 to 28.4% in November 2021. Of those with a positive test in June 2020, 92.1% remained with a positive test, 6.7% had an indeterminate test and 1.1% had a negative test in November 2021. Non-diagnosed carriers represented 28.6% in June 2020 and 14.6% in November 2021. Nurses and nursing assistants showed the highest prevalence of seropositivity. Close

SUBMITTER: Barrufet MP 

PROVIDER: S-EPMC10567251 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature