Analysis of anti-Plasmodium IgG profiles among Fulani nomadic pastoralists in northern Senegal to assess malaria exposure
Abstract Background Northern Senegal is a zone of very low malaria transmission, with an annual incidence of < 5/1000 inhabitants. This area, where the Senegal National Malaria Control Programme has initiated elimination activities, hosts Fulani, nomadic, pastoralists that spend the dry season in...
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ftdoajarticles:oai:doaj.org/article:aa1a2069f57343d79c56268a5143bf47 2023-05-15T15:17:45+02:00 Analysis of anti-Plasmodium IgG profiles among Fulani nomadic pastoralists in northern Senegal to assess malaria exposure Mame Cheikh Seck Julie Thwing Aida Sadikh Badiane Eric Rogier Fatou Ba Fall Pape Ibrahima Ndiaye Khadim Diongue Moustapha Mbow Mouhamadou Ndiaye Mamadou Alpha Diallo Jules François Gomis Aminata Mbaye Tolla Ndiaye Aminata Gaye Mohamad Sy Awa Bineta Déme Yaye Die Ndiaye Daouda Ndiaye 2020-01-01T00:00:00Z https://doi.org/10.1186/s12936-020-3114-2 https://doaj.org/article/aa1a2069f57343d79c56268a5143bf47 EN eng BMC https://doi.org/10.1186/s12936-020-3114-2 https://doaj.org/toc/1475-2875 doi:10.1186/s12936-020-3114-2 1475-2875 https://doaj.org/article/aa1a2069f57343d79c56268a5143bf47 Malaria Journal, Vol 19, Iss 1, Pp 1-10 (2020) Malaria MSP-119 CSP LSA-1 Antibodies Plasmodium Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 2020 ftdoajarticles https://doi.org/10.1186/s12936-020-3114-2 2022-12-31T12:06:54Z Abstract Background Northern Senegal is a zone of very low malaria transmission, with an annual incidence of < 5/1000 inhabitants. This area, where the Senegal National Malaria Control Programme has initiated elimination activities, hosts Fulani, nomadic, pastoralists that spend the dry season in the south where malaria incidence is higher (150–450/1000 inhabitants) and return to the north with the first rains. Previous research demonstrated parasite prevalence of < 1% in this Fulani population upon return from the south, similar to that documented in the north in cross-sectional surveys. Methods A modified snowball sampling survey of nomadic pastoralists was conducted in five districts in northern Senegal during September and October 2014. Demographic information and dried blood spots were collected. Multiplex bead-based assays were used to assess antibody responses to merozoite surface protein (MSP-119) antigen of the four primary Plasmodium species, as well as circumsporozoite protein (CSP) and liver stage antigen (LSA-1) of Plasmodium falciparum. Results In the five study districts, 1472 individuals were enrolled, with a median age of 22 years (range 1 to 80 years). Thirty-two percent of subjects were under 14 years and 57% were male. The overall seroprevalence of P. falciparum MSP-119, CSP and LSA-1 antibodies were 45, 12 and 5%, respectively. Plasmodium falciparum MSP-119 antibody responses increased significantly with age in all study areas, and were significantly higher among males. The highest seroprevalence to P. falciparum antigens was observed in the Kanel district (63%) and the lowest observed in Podor (28%). Low seroprevalence was observed for non-falciparum species in all the study sites: 0.4, 0.7 and 1.8%, respectively, for Plasmodium ovale, Plasmodium vivax and Plasmodium malariae MSP-1. Antibody responses to P. vivax were observed in all study sites except Kanel. Conclusion Prevalence of P. falciparum MSP-119 antibodies and increases by study participant age provided data for low levels ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Malaria Journal 19 1 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
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English |
topic |
Malaria MSP-119 CSP LSA-1 Antibodies Plasmodium Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
spellingShingle |
Malaria MSP-119 CSP LSA-1 Antibodies Plasmodium Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 Mame Cheikh Seck Julie Thwing Aida Sadikh Badiane Eric Rogier Fatou Ba Fall Pape Ibrahima Ndiaye Khadim Diongue Moustapha Mbow Mouhamadou Ndiaye Mamadou Alpha Diallo Jules François Gomis Aminata Mbaye Tolla Ndiaye Aminata Gaye Mohamad Sy Awa Bineta Déme Yaye Die Ndiaye Daouda Ndiaye Analysis of anti-Plasmodium IgG profiles among Fulani nomadic pastoralists in northern Senegal to assess malaria exposure |
topic_facet |
Malaria MSP-119 CSP LSA-1 Antibodies Plasmodium Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
Abstract Background Northern Senegal is a zone of very low malaria transmission, with an annual incidence of < 5/1000 inhabitants. This area, where the Senegal National Malaria Control Programme has initiated elimination activities, hosts Fulani, nomadic, pastoralists that spend the dry season in the south where malaria incidence is higher (150–450/1000 inhabitants) and return to the north with the first rains. Previous research demonstrated parasite prevalence of < 1% in this Fulani population upon return from the south, similar to that documented in the north in cross-sectional surveys. Methods A modified snowball sampling survey of nomadic pastoralists was conducted in five districts in northern Senegal during September and October 2014. Demographic information and dried blood spots were collected. Multiplex bead-based assays were used to assess antibody responses to merozoite surface protein (MSP-119) antigen of the four primary Plasmodium species, as well as circumsporozoite protein (CSP) and liver stage antigen (LSA-1) of Plasmodium falciparum. Results In the five study districts, 1472 individuals were enrolled, with a median age of 22 years (range 1 to 80 years). Thirty-two percent of subjects were under 14 years and 57% were male. The overall seroprevalence of P. falciparum MSP-119, CSP and LSA-1 antibodies were 45, 12 and 5%, respectively. Plasmodium falciparum MSP-119 antibody responses increased significantly with age in all study areas, and were significantly higher among males. The highest seroprevalence to P. falciparum antigens was observed in the Kanel district (63%) and the lowest observed in Podor (28%). Low seroprevalence was observed for non-falciparum species in all the study sites: 0.4, 0.7 and 1.8%, respectively, for Plasmodium ovale, Plasmodium vivax and Plasmodium malariae MSP-1. Antibody responses to P. vivax were observed in all study sites except Kanel. Conclusion Prevalence of P. falciparum MSP-119 antibodies and increases by study participant age provided data for low levels ... |
format |
Article in Journal/Newspaper |
author |
Mame Cheikh Seck Julie Thwing Aida Sadikh Badiane Eric Rogier Fatou Ba Fall Pape Ibrahima Ndiaye Khadim Diongue Moustapha Mbow Mouhamadou Ndiaye Mamadou Alpha Diallo Jules François Gomis Aminata Mbaye Tolla Ndiaye Aminata Gaye Mohamad Sy Awa Bineta Déme Yaye Die Ndiaye Daouda Ndiaye |
author_facet |
Mame Cheikh Seck Julie Thwing Aida Sadikh Badiane Eric Rogier Fatou Ba Fall Pape Ibrahima Ndiaye Khadim Diongue Moustapha Mbow Mouhamadou Ndiaye Mamadou Alpha Diallo Jules François Gomis Aminata Mbaye Tolla Ndiaye Aminata Gaye Mohamad Sy Awa Bineta Déme Yaye Die Ndiaye Daouda Ndiaye |
author_sort |
Mame Cheikh Seck |
title |
Analysis of anti-Plasmodium IgG profiles among Fulani nomadic pastoralists in northern Senegal to assess malaria exposure |
title_short |
Analysis of anti-Plasmodium IgG profiles among Fulani nomadic pastoralists in northern Senegal to assess malaria exposure |
title_full |
Analysis of anti-Plasmodium IgG profiles among Fulani nomadic pastoralists in northern Senegal to assess malaria exposure |
title_fullStr |
Analysis of anti-Plasmodium IgG profiles among Fulani nomadic pastoralists in northern Senegal to assess malaria exposure |
title_full_unstemmed |
Analysis of anti-Plasmodium IgG profiles among Fulani nomadic pastoralists in northern Senegal to assess malaria exposure |
title_sort |
analysis of anti-plasmodium igg profiles among fulani nomadic pastoralists in northern senegal to assess malaria exposure |
publisher |
BMC |
publishDate |
2020 |
url |
https://doi.org/10.1186/s12936-020-3114-2 https://doaj.org/article/aa1a2069f57343d79c56268a5143bf47 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Malaria Journal, Vol 19, Iss 1, Pp 1-10 (2020) |
op_relation |
https://doi.org/10.1186/s12936-020-3114-2 https://doaj.org/toc/1475-2875 doi:10.1186/s12936-020-3114-2 1475-2875 https://doaj.org/article/aa1a2069f57343d79c56268a5143bf47 |
op_doi |
https://doi.org/10.1186/s12936-020-3114-2 |
container_title |
Malaria Journal |
container_volume |
19 |
container_issue |
1 |
_version_ |
1766347984617865216 |