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Background: Coronavirus disease 2019 (COVID-19) is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) We aimed to determine the prevalence of current and past SARS-CoV-2 infections among police employees Methods: This cross-sectional survey was undertaken among 5082 police employees from Mazowieckie Province, Poland RT-PCR testing for current SARS-CoV-2 infection and serological tests (ELISA) for the presence of anti-SARS-CoV-2 IgM+IgA and IgG antibodies were performed Results: All RT-PCR tests were negative The anti-SARS-CoV-2 IgM+IgA index was positive (>8) in 8 9% of participants, including 11 2% women and 7 7% men (p <0 001) Equivocal IgM+IgA index (6–8) was found in 9 8% of participants, including 11 9% women and 8 7% men (p <0 001) The IgG index was positive (>6) in 4 3% and equivocal (4–6) in 13 2% of participants A higher odds of positive IgM+IgA index was found in women vs men (OR: 1 742) and police officers vs civilian employees (OR: 1 411) Participants aged ≥60 years had a higher odds of positive IgG index vs those aged 20–29 years (OR: 3 309) Daily vaping also increased the odds of positive IgG index (OR: 2 058) Conclusions: The majority of Polish police employees are seronegative for SARS-CoV-2 infection Vaping and older age (≥60 years) were associated with a higher risk of SARS-CoV-2 infection
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Journal_of_Clinical_Medicine
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Prevalence of Current and Past SARS-CoV-2 Infections among Police Employees in Poland, June–July 2020
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