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Year : 2022  |  Volume : 9  |  Issue : 1  |  Page : 33-37

COVID immunity in the Angolan population: Serological study with Abbott COVID-19 IgG/IgM Rapid Test and serological mini VIDAS BIOMERIEUX test

1 International SOS Talatona Clinic, Luanda, Angola
2 National Institute for Health and Medical Research (INSERM), University of Limoges, CHU Limoges, IRD, U 1094, GEIST, Limoges, France
3 CMS Total, Luanda, Angola
4 Paz Flor Medical Center, Luanda, Angola

Correspondence Address:
Dr. Renata Almeida
International SOS Talatona Clinic, OfficeRua S10 Sector Talatona, Zona CC-B2, Luanda.
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/mgmj.mgmj_91_21

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Background: The numbers of severe COVID cases and COVID-related deaths on the African continent are lower than expected. We hypothesize that this paradox may be due to the achieved immunity in black Africans. Materials and Methods: A prospective study was conducted on Angolan people who performed the Panbio Abbott COVID-19 IgG/IgM Rapid Test in a health unit in Luanda. One hundred randomly selected subjects in those with positive immunoglobulin G (IgG) underwent the serological mini VIDAS BIOMERIEUX test. Results: In our population study (2409 subjects), 791 (32.83%) had positive IgG at the Panbio Abbott COVID-19 test. One hundred were randomly selected. The mean age was 39.55, and 96% were males. The positivity to IgG was validated in 72 subjects at the mini VIDAS BIOMERIEUX test. Conclusion: These results support our hypothesis that in the Angolan/African population a previously achieved immunity may be one of the reasons why this continent was not affected by COVID-19 as expected.

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