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Seroprevalence of Anti-SARS-CoV-2 Antibodies in a Random Sample of Inhabitants of the Katowice Region, Poland

Author

Listed:
  • Jan E. Zejda

    (Department of Epidemiology, School of Medicine in Katowice, Medical University of Silesia in Katowice, 40-752 Katowice, Poland)

  • Grzegorz M. Brożek

    (Department of Epidemiology, School of Medicine in Katowice, Medical University of Silesia in Katowice, 40-752 Katowice, Poland)

  • Małgorzata Kowalska

    (Department of Epidemiology, School of Medicine in Katowice, Medical University of Silesia in Katowice, 40-752 Katowice, Poland)

  • Kamil Barański

    (Department of Epidemiology, School of Medicine in Katowice, Medical University of Silesia in Katowice, 40-752 Katowice, Poland)

  • Angelina Kaleta-Pilarska

    (Department of Epidemiology, School of Medicine in Katowice, Medical University of Silesia in Katowice, 40-752 Katowice, Poland)

  • Artur Nowakowski

    (Department of Epidemiology, School of Medicine in Katowice, Medical University of Silesia in Katowice, 40-752 Katowice, Poland)

  • Yuchen Xia

    (State Key Laboratory of Virology, School of Basic Medical Sciences, Wuhan University, Wuhan 430072, China)

  • Paweł Buszman

    (Department of Epidemiology, School of Medicine in Katowice, Medical University of Silesia in Katowice, 40-752 Katowice, Poland)

Abstract

Lack of knowledge around seroprevalence levels of COVID-19 in Poland was the reason for the implementation of a seroepidemiological study in the Katowice Region (2,100,000 inhabitants). In October–November 2020, a questionnaire examination and measurement of anti-SARS-CoV-2 IgG and IgM antibodies were performed in a random sample of the general population ( n = 1167). The objectives of the study were to estimate the prevalence of IgG and IgM antibodies and to assess their host-related correlates. The prevalence of IgG seropositivity was 11.4% (95% CI: 9.5–13.2%) and IgM seropositivity was 4.6% (95% CI: 3.5–5.8%). Diagnosis of COVID-19 was found in 4.8% of subjects. A positive IgG test was statistically significantly associated with age (inverse relationship), a person’s contact with a COVID-19 patient, quarantine, and two symptoms in the past: fever and loss of smell/taste. Positive IgG tests were less prevalent in subjects who had diagnoses of arterial hypertension, diabetes, or rheumatologic disorders. IgM test positivity was associated with quarantine and loss of smell/taste only with no effect of chronic diseases found. In Poland, in the period October–November 2020, the prevalence of SARS-CoV-2 infection was larger than earlier estimates obtained in other European countries, probably reflecting the measurements obtained during the “second wave” of the epidemic.

Suggested Citation

  • Jan E. Zejda & Grzegorz M. Brożek & Małgorzata Kowalska & Kamil Barański & Angelina Kaleta-Pilarska & Artur Nowakowski & Yuchen Xia & Paweł Buszman, 2021. "Seroprevalence of Anti-SARS-CoV-2 Antibodies in a Random Sample of Inhabitants of the Katowice Region, Poland," IJERPH, MDPI, vol. 18(6), pages 1-10, March.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:6:p:3188-:d:520445
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    References listed on IDEAS

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    1. Marco Del Riccio & Chiara Lorini & Guglielmo Bonaccorsi & John Paget & Saverio Caini, 2020. "The Association between Influenza Vaccination and the Risk of SARS-CoV-2 Infection, Severe Illness, and Death: A Systematic Review of the Literature," IJERPH, MDPI, vol. 17(21), pages 1-9, October.
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