Naturally acquired immune responses to malaria vaccine candidate antigens MSP3 and GLURP in Guahibo and Piaroa indigenous communities of the Venezuelan Amazon
Abstract Background Malaria transmission in most of Latin America can be considered as controlled. In such a scenario, parameters of baseline immunity to malaria antigens are of specific interest with respect to future malaria eradication efforts. Methods A cross-sectional study was carried out in t...
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ftdoajarticles:oai:doaj.org/article:7648e32176284a8cbe331b1e4fd59cf9 2023-05-15T15:10:09+02:00 Naturally acquired immune responses to malaria vaccine candidate antigens MSP3 and GLURP in Guahibo and Piaroa indigenous communities of the Venezuelan Amazon Baumann Andreas Magris Magda M Urbaez Marie-Luz Vivas-Martinez Sarai Durán Rommy Nieves Tahidid Esen Meral Mordmüller Benjamin G Theisen Michael Avilan Luisana Metzger Wolfram G 2012-02-01T00:00:00Z https://doi.org/10.1186/1475-2875-11-46 https://doaj.org/article/7648e32176284a8cbe331b1e4fd59cf9 EN eng BMC http://www.malariajournal.com/content/11/1/46 https://doaj.org/toc/1475-2875 doi:10.1186/1475-2875-11-46 1475-2875 https://doaj.org/article/7648e32176284a8cbe331b1e4fd59cf9 Malaria Journal, Vol 11, Iss 1, p 46 (2012) Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 2012 ftdoajarticles https://doi.org/10.1186/1475-2875-11-46 2022-12-30T23:45:23Z Abstract Background Malaria transmission in most of Latin America can be considered as controlled. In such a scenario, parameters of baseline immunity to malaria antigens are of specific interest with respect to future malaria eradication efforts. Methods A cross-sectional study was carried out in two indigenous population groups in Amazonas/Venezuela. Data from the regional malaria documentation system were extracted and participants from the ethnic groups of the Guahibo (n = 180) and Piaroa (n = 295) were investigated for the presence of Plasmodium parasites and naturally acquired antibodies to Plasmodium falciparum antigens in serum. The GMZ2 vaccine candidate proteins MSP3 and GLURP were chosen as serological markers. Results The incidence of P. falcip arum in both communities was found to be less than 2%, and none of the participants harboured P. falciparum at the time of the cross-sectional. Nearly a quarter of the participants (111/475; 23,4%) had positive antibody titres to at least one of the antigens. 53/475 participants (11.2%) were positive for MSP3, and 93/475 participants (19.6%) were positive for GLURP. High positive responses were detected in 36/475 participants (7.6%) and 61/475 participants (12.8%) for MSP3 and GLURP, respectively. Guahibo participants had significantly higher antibody titres than Piaroa participants. Conclusions Considering the low incidence of P. falciparum , submicroscopical infections may explain the comparatively high anti- P. falciparum antibody concentrations. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Malaria Journal 11 1 46 |
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Directory of Open Access Journals: DOAJ Articles |
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Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
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Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 Baumann Andreas Magris Magda M Urbaez Marie-Luz Vivas-Martinez Sarai Durán Rommy Nieves Tahidid Esen Meral Mordmüller Benjamin G Theisen Michael Avilan Luisana Metzger Wolfram G Naturally acquired immune responses to malaria vaccine candidate antigens MSP3 and GLURP in Guahibo and Piaroa indigenous communities of the Venezuelan Amazon |
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Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
Abstract Background Malaria transmission in most of Latin America can be considered as controlled. In such a scenario, parameters of baseline immunity to malaria antigens are of specific interest with respect to future malaria eradication efforts. Methods A cross-sectional study was carried out in two indigenous population groups in Amazonas/Venezuela. Data from the regional malaria documentation system were extracted and participants from the ethnic groups of the Guahibo (n = 180) and Piaroa (n = 295) were investigated for the presence of Plasmodium parasites and naturally acquired antibodies to Plasmodium falciparum antigens in serum. The GMZ2 vaccine candidate proteins MSP3 and GLURP were chosen as serological markers. Results The incidence of P. falcip arum in both communities was found to be less than 2%, and none of the participants harboured P. falciparum at the time of the cross-sectional. Nearly a quarter of the participants (111/475; 23,4%) had positive antibody titres to at least one of the antigens. 53/475 participants (11.2%) were positive for MSP3, and 93/475 participants (19.6%) were positive for GLURP. High positive responses were detected in 36/475 participants (7.6%) and 61/475 participants (12.8%) for MSP3 and GLURP, respectively. Guahibo participants had significantly higher antibody titres than Piaroa participants. Conclusions Considering the low incidence of P. falciparum , submicroscopical infections may explain the comparatively high anti- P. falciparum antibody concentrations. |
format |
Article in Journal/Newspaper |
author |
Baumann Andreas Magris Magda M Urbaez Marie-Luz Vivas-Martinez Sarai Durán Rommy Nieves Tahidid Esen Meral Mordmüller Benjamin G Theisen Michael Avilan Luisana Metzger Wolfram G |
author_facet |
Baumann Andreas Magris Magda M Urbaez Marie-Luz Vivas-Martinez Sarai Durán Rommy Nieves Tahidid Esen Meral Mordmüller Benjamin G Theisen Michael Avilan Luisana Metzger Wolfram G |
author_sort |
Baumann Andreas |
title |
Naturally acquired immune responses to malaria vaccine candidate antigens MSP3 and GLURP in Guahibo and Piaroa indigenous communities of the Venezuelan Amazon |
title_short |
Naturally acquired immune responses to malaria vaccine candidate antigens MSP3 and GLURP in Guahibo and Piaroa indigenous communities of the Venezuelan Amazon |
title_full |
Naturally acquired immune responses to malaria vaccine candidate antigens MSP3 and GLURP in Guahibo and Piaroa indigenous communities of the Venezuelan Amazon |
title_fullStr |
Naturally acquired immune responses to malaria vaccine candidate antigens MSP3 and GLURP in Guahibo and Piaroa indigenous communities of the Venezuelan Amazon |
title_full_unstemmed |
Naturally acquired immune responses to malaria vaccine candidate antigens MSP3 and GLURP in Guahibo and Piaroa indigenous communities of the Venezuelan Amazon |
title_sort |
naturally acquired immune responses to malaria vaccine candidate antigens msp3 and glurp in guahibo and piaroa indigenous communities of the venezuelan amazon |
publisher |
BMC |
publishDate |
2012 |
url |
https://doi.org/10.1186/1475-2875-11-46 https://doaj.org/article/7648e32176284a8cbe331b1e4fd59cf9 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Malaria Journal, Vol 11, Iss 1, p 46 (2012) |
op_relation |
http://www.malariajournal.com/content/11/1/46 https://doaj.org/toc/1475-2875 doi:10.1186/1475-2875-11-46 1475-2875 https://doaj.org/article/7648e32176284a8cbe331b1e4fd59cf9 |
op_doi |
https://doi.org/10.1186/1475-2875-11-46 |
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Malaria Journal |
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11 |
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1 |
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46 |
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1766341207324098560 |