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Pinilla YT, Boussougou-Sambe ST, Gräßle S, Ngossanga B, Doumba-Ndalembouly AG, Weierich A, Bingoulou G, Malinga EG, Nguiffo-Nguete D, Ntoumi F, Djogbénou L, Issifou S, Wondji CS, Adegnika AA, Borrmann S. Experimental Transmission of Plasmodium malariae to Anopheles gambiae. J Infect Dis 2020; 223:522-526. [PMID: 32621750 DOI: 10.1093/infdis/jiaa382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 07/03/2020] [Indexed: 11/13/2022] Open
Abstract
Our current knowledge of the clinical burden, biology, and transmission of Plasmodium malariae is extremely scarce. To start addressing some of those questions, we experimentally infected Anopheles gambiae mosquitoes with fresh P. malariae isolates obtained from asymptomatic individuals in Lambaréné, Gabon. The proportion of mosquitoes infected via direct membrane feeding assay with either P. malariae monoinfections (16% [19 of 121]) or coinfections (28% [31 of 112]) was higher after serum replacement than in parallel groups without serum replacement (4% [4 of 102] and 4% [2 of 45], respectively; P < .01). Our results show that isolates from asymptomatic carriers can be used for experimental studies of P. malariae transmission.
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Affiliation(s)
- Yudi T Pinilla
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.,Institut für Tropenmedizin, Eberhard Karls Universität, Tübingen, Germany
| | - Stravensky T Boussougou-Sambe
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.,Institut für Tropenmedizin, Eberhard Karls Universität, Tübingen, Germany
| | - Sarah Gräßle
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.,Institut für Tropenmedizin, Eberhard Karls Universität, Tübingen, Germany
| | | | | | - Andrea Weierich
- Institut für Tropenmedizin, Eberhard Karls Universität, Tübingen, Germany
| | | | - Emma G Malinga
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon
| | - Daniel Nguiffo-Nguete
- Centre for Research in Infectious Diseases and International Institute of Tropical Agriculture, Yaoundé, Cameroon
| | - Francine Ntoumi
- Fondation Congolaise pour la Recherche Médicale, Brazzaville, Republic of the Congo
| | - Luc Djogbénou
- Institut Régional de Santé Publique, Ouidah, Bénin.,University of Abomey-Calavi, Ouidah, Bénin.,Fondation pour la Recherche Scientifique, Cotonou, Benin
| | - Saadou Issifou
- Fondation pour la Recherche Scientifique, Cotonou, Benin
| | - Charles S Wondji
- Centre for Research in Infectious Diseases and International Institute of Tropical Agriculture, Yaoundé, Cameroon.,Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Ayola A Adegnika
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.,Institut für Tropenmedizin, Eberhard Karls Universität, Tübingen, Germany.,Fondation pour la Recherche Scientifique, Cotonou, Benin.,German Center for Infection Research (DZIF), partner site Tübingen, Tübingen, Germany
| | - Steffen Borrmann
- Centre de Recherches Médicales de Lambaréné, Lambaréné, Gabon.,Institut für Tropenmedizin, Eberhard Karls Universität, Tübingen, Germany
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