1. Efficient transplacental transfer of SARS-CoV-2 antibodies between naturally exposed mothers and infants in Accra, Ghana
- Author
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Frederica D. Partey, Dorotheah Obiri, Evelyn Yayra Bonney, Abigail Naa Adjorkor Pobee, Isaac Kumi Damptey, Keren Ennuson, Jayln Akwetea-Foli, Franklin Yengdem Nuokpem, David Courtin, Kwadwo A. Kusi, and Benedicta A. Mensah
- Subjects
COVID-19 ,SARS-COV-2 ,Maternal COVID-19 ,Prenatal COVID-19 placental transfer ,Transfer efficiency ,Medicine ,Science - Abstract
Abstract We aimed to determine SARS-CoV-2 antibody seropositivity among pregnant women and the transplacental transfer efficiency of SARS-CoV-2-specific antibodies relative to malaria antibodies among SARS-CoV-2 seropositive mother-cord pairs. This cross-sectional study was conducted in Accra, Ghana, from March to May 2022. Antigen- specific IgG antibodies against SARS-CoV-2 (nucleoprotein and spike-receptor binding domain) and malarial antigens (circumsporozoite protein and merozoite surface protein 3) in maternal and cord plasma were measured by ELISA. Plasma from both vaccinated and unvaccinated pregnant women were tested for neutralizing antibodies using commercial kit. Of the unvaccinated pregnant women tested, 58.12% at antenatal clinics and 55.56% at the delivery wards were seropositive for both SARS-CoV-2 nucleoprotein and RBD antibodies. Anti-SARS-CoV-2 antibodies in cord samples correlated with maternal antibody levels (N antigen rs = 0.7155, p
- Published
- 2024
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