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Article

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

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Department of Epidemiology, School of Medicine in Katowice, Medical University of Silesia in Katowice, 40-752 Katowice, Poland
2
State Key Laboratory of Virology, School of Basic Medical Sciences, Wuhan University, Wuhan 430072, China
*
Author to whom correspondence should be addressed.
Academic Editor: Paul B. Tchounwou
Int. J. Environ. Res. Public Health 2021, 18(6), 3188; https://doi.org/10.3390/ijerph18063188
Received: 15 February 2021 / Revised: 11 March 2021 / Accepted: 16 March 2021 / Published: 19 March 2021
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. View Full-Text
Keywords: SARS-CoV-2; IgG/IgM seroprevalence; representative sample; general population; risk factors SARS-CoV-2; IgG/IgM seroprevalence; representative sample; general population; risk factors
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MDPI and ACS Style

Zejda, J.E.; Brożek, G.M.; Kowalska, M.; Barański, K.; Kaleta-Pilarska, A.; Nowakowski, A.; Xia, Y.; Buszman, P. Seroprevalence of Anti-SARS-CoV-2 Antibodies in a Random Sample of Inhabitants of the Katowice Region, Poland. Int. J. Environ. Res. Public Health 2021, 18, 3188. https://doi.org/10.3390/ijerph18063188

AMA Style

Zejda JE, Brożek GM, Kowalska M, Barański K, Kaleta-Pilarska A, Nowakowski A, Xia Y, Buszman P. Seroprevalence of Anti-SARS-CoV-2 Antibodies in a Random Sample of Inhabitants of the Katowice Region, Poland. International Journal of Environmental Research and Public Health. 2021; 18(6):3188. https://doi.org/10.3390/ijerph18063188

Chicago/Turabian Style

Zejda, Jan E., Grzegorz M. Brożek, Małgorzata Kowalska, Kamil Barański, Angelina Kaleta-Pilarska, Artur Nowakowski, Yuchen Xia, and Paweł Buszman. 2021. "Seroprevalence of Anti-SARS-CoV-2 Antibodies in a Random Sample of Inhabitants of the Katowice Region, Poland" International Journal of Environmental Research and Public Health 18, no. 6: 3188. https://doi.org/10.3390/ijerph18063188

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