Healthcare workers (HCW) play a vital role in the SARS-CoV-2 pandemic control. The aim of this study was to assess the prevalence of SARS-CoV-2 antibodies and the risk of COVID-19 infections in a cohort of HCW from four different risk groups (from intensive care unit to administration) of a hospital of a primary care level in rural Germany. The outcomes were monthly measures of antibody seroprevalence over a period of 6 months. Overall, a seroprevalence of 13.41% was determined, with significantly higher prevalence rates among HCW working in areas with more frequent contact to confirmed or suspected cases (30.30%, p = 0.003). The group specific differences in the risk of infection from COVID-19 were detected, as HCW groups with frequent exposure seemed to have an increased risk (RR = 3.18, p = 0.02; CI95 1.09–9.24). The findings contribute to the epidemiological understanding of the virus spread in an unvaccinated population group, which is highly relevant for the pandemic management.
Healthcare workers are of a high priority in SARS-CoV-2 pandemic and epidemiological control strategies due to their relevance for the healthcare system and high exposure levels that might result in symptomatic and asymptomatic courses. Aim of this study is to assess the prevalence of SARS-CoV-2 infections in a cohort of 171 healthcare workers in a standard care hospital in a rural German area. The outcomes are monthly measures of antibody prevalence over a 6-month period. Using univariate statistics, baseline characteristics will be analysed considering risk groups, exposure history, test frequencies, symptoms, and antibody distribution.At T0 tests for qualitative detection of antibodies (Ig) against SARS-CoV-2 revealed a seroprevalence of 1.3%.The data contribute to the understanding of the virus spread in a particularly exposed population group and will be relevant for management of the pandemic. Longitudinal analyses will reveal the progression of seroprevalence of antibodies and immunity over the time.
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