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Seroprevalence of anti-SARS-CoV-2 antibodies and risk factors among healthy blood donors in Luanda, Angola by Cruz S. Sebastião; Manuela Galangue; Celestina Gaston; Rui Van-Dunen; Joltim Quivinja; Emiliana Lunbungululo; Domingos Alfredo; Alberto Sozinho; Alice Teixeira; Eunice Manico; Deodete Machado; António Mateus; Zinga David; Joana Paixão; Zoraima Neto; Jocelyne Neto de Vasconcelos; Joana Morais is a Medicine article available to read on EtoBox.
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## Abstract ## Background SARS-CoV-2 emerged in China and spread throughout the world due to its rapid transmission. The exposure rate in the healthy population is unknown, mainly in resource-limited countries. Herein, we estimated the seroprevalence of anti-SARS-CoV-2 antibodies and risk factors among blood donors in Luanda, the capital city of Angola. ## Methods This was a retrospective study conducted with 343 blood donors. Chi-square and logistic regression were calculated to predict the independent variable for SARS-CoV-2 infection and deemed significant when p < 0.05. ## Results Seroprevalence of anti-SARS-CoV-2 was 4.7%. Positivity rates varied to age groups (3.5–14.3%), gender (0–5%), area of residence (3.1–.6%), educational level (5.1–10.2%), occupation (4.4–7.7%), and the blood donor category (2.0–5.1%). Past and recent infections were detected in 3.2% and 1.5%, respectively. Blood donors under the age of 20 years (OR: 4.58, p = 0.241) and from non-urbanized areas (OR: 1.86, p = 0.293) presented a high risk related to infection. The infection was higher in blood group A and lower in blood group O. The risk of SARS-CoV-2 infection has increased from January 2020 (OR: 0.03,
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- Author
- Cruz S. Sebastião; Manuela Galangue; Celestina Gaston; Rui Van-Dunen; Joltim Quivinja; Emiliana Lunbungululo; Domingos Alfredo; Alberto Sozinho; Alice Teixeira; Eunice Manico; Deodete Machado; António Mateus; Zinga David; Joana Paixão; Zoraima Neto; Jocelyne Neto de Vasconcelos; Joana Morais
- Publisher
- Springer Science and Business Media LLC
- Published
- 2021
- Language
- EN
- Field
- Medicine (Health Sciences)