Pre-Pandemic Cross-Reactive Immunity against SARS-CoV-2 among Central and West African Populations
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2022
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| author | Souris, Marc Tshilolo, Léon Parzy, Daniel Lobaloba Ingoba, Line Ntoumi, Francine Kamgaing, Rachel Ndour, Moussa Mbongi, Destin Phoba, Balthazar Tshilolo, Marie-Anasthasie Mbungu, René Sosso, Martin Samuel Fainguem, Nadine Ndiaye Dieye, Tandakha Sylla, Massamba Morand, Pierre Gonzalez, Jean-Paul |
| author_facet | Souris, Marc Tshilolo, Léon Parzy, Daniel Lobaloba Ingoba, Line Ntoumi, Francine Kamgaing, Rachel Ndour, Moussa Mbongi, Destin Phoba, Balthazar Tshilolo, Marie-Anasthasie Mbungu, René Sosso, Martin Samuel Fainguem, Nadine Ndiaye Dieye, Tandakha Sylla, Massamba Morand, Pierre Gonzalez, Jean-Paul |
| contents | (Uploaded by Plazi for the Bat Literature Project) For more than two years after the emergence of COVID-19 (Coronavirus Disease-2019), significant regional differences in morbidity persist. These differences clearly show lower incidence rates in several regions of the African and Asian continents. The work reported here aimed to test the hypothesis of a pre-pandemic natural immunity acquired by some human populations in central and western Africa, which would, therefore, pose the hypothesis of an original antigenic sin with a virus antigenically close to the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). To identify such pre-existing immunity, sera samples collected before the emergence of COVID-19 were tested to detect the presence of IgG reacting antibodies against SARS-CoV-2 proteins of major significance. Sera samples from French blood donors collected before the pandemic served as a control. The results showed a statistically significant difference of antibodies prevalence between the collected samples in Africa and the control samples collected in France. Given the novelty of our results, our next step consists in highlighting neutralizing antibodies to evaluate their potential for pre-pandemic protective acquired immunity against SARS-CoV-2. In conclusion, our results suggest that, in the investigated African sub-regions, the tested populations could have been potentially and partially pre-exposed, before the COVID-19 pandemic, to the antigens of a yet non-identified Coronaviruses. |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_13425575 |
| institution | Zenodo |
| language | |
| publishDate | 2022 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Pre-Pandemic Cross-Reactive Immunity against SARS-CoV-2 among Central and West African Populations Souris, Marc Tshilolo, Léon Parzy, Daniel Lobaloba Ingoba, Line Ntoumi, Francine Kamgaing, Rachel Ndour, Moussa Mbongi, Destin Phoba, Balthazar Tshilolo, Marie-Anasthasie Mbungu, René Sosso, Martin Samuel Fainguem, Nadine Ndiaye Dieye, Tandakha Sylla, Massamba Morand, Pierre Gonzalez, Jean-Paul Biodiversity Mammalia Chiroptera Chordata Animalia bats bat (Uploaded by Plazi for the Bat Literature Project) For more than two years after the emergence of COVID-19 (Coronavirus Disease-2019), significant regional differences in morbidity persist. These differences clearly show lower incidence rates in several regions of the African and Asian continents. The work reported here aimed to test the hypothesis of a pre-pandemic natural immunity acquired by some human populations in central and western Africa, which would, therefore, pose the hypothesis of an original antigenic sin with a virus antigenically close to the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). To identify such pre-existing immunity, sera samples collected before the emergence of COVID-19 were tested to detect the presence of IgG reacting antibodies against SARS-CoV-2 proteins of major significance. Sera samples from French blood donors collected before the pandemic served as a control. The results showed a statistically significant difference of antibodies prevalence between the collected samples in Africa and the control samples collected in France. Given the novelty of our results, our next step consists in highlighting neutralizing antibodies to evaluate their potential for pre-pandemic protective acquired immunity against SARS-CoV-2. In conclusion, our results suggest that, in the investigated African sub-regions, the tested populations could have been potentially and partially pre-exposed, before the COVID-19 pandemic, to the antigens of a yet non-identified Coronaviruses. |
| title | Pre-Pandemic Cross-Reactive Immunity against SARS-CoV-2 among Central and West African Populations |
| topic | Biodiversity Mammalia Chiroptera Chordata Animalia bats bat |
| url | https://doi.org/10.5281/zenodo.13425575 |