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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
immunology and microbiology
Comparative role of aedes albopictus and aedes aegypti in the emergence of dengue and chikungunya in central Africa
Vector-Borne and Zoonotic Diseases, Volume 10, No. 3, Year 2010
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Description
Since its discovery in Nigeria in 1991, Aedes albopictus has invaded much of Central Africa, a region where Ae. aegypti also occurs. To assess the relationship between the invasion by Ae. albopictus and the recent emergence of dengue virus (DENV) and chikungunya virus (CHIKV), we undertook vector competence experiments on populations collected from Cameroon and conducted field investigations during concurrent epidemics of DENV and CHIKV in Gabon. Overall, infection and dissemination rates were not significantly different between Ae. albopictus and Ae. aegypti when exposed to titers of 10 8.1 mosquito infectious dose 50/mL and 107.5 plaque forming units/mL of DENV type 2 and CHIKV, respectively. Field investigations showed that Ae. albopictus readily bit man, was abundant, and outnumbered Ae. aegypti to a large extent in Gabon, particularly in suburban environments. Nevertheless, Ae. aegypti was predominant in the more urbanized central parts of Libreville. In this city, CHIKV and DENV were detected only in Ae. albopictus. These data strongly suggest that Ae. albopictus acted as the major vector of both viruses in Libreville in 2007, impacting on the epidemiology of DENV and CHIKV in this area. © 2010, Mary Ann Liebert, Inc.
Authors & Co-Authors
Paupy, Christophe
Cameroon, Yaounde
Organisation de Coordination Pour la Lutte Contre Les Endémies en Afrique Centrale Cameroon
France, Marseille
Ird Institut de Recherche Pour le Developpement
Ollomo, Benjamin
Gabon, Franceville
Centre International de Recherches Medicales de Franceville
Kamgang, Basile
Cameroon, Yaounde
Organisation de Coordination Pour la Lutte Contre Les Endémies en Afrique Centrale Cameroon
France, Marseille
Ird Institut de Recherche Pour le Developpement
Moutailler, Sara
France, Paris
Institut Pasteur, Paris
Rousset, Dominique
Cameroon, Yaounde
Centre Pasteur du Cameroun
Demanou, Maurice
Cameroon, Yaounde
Centre Pasteur du Cameroun
Hervé, Jean Pierre
France, Marseille
Ird Institut de Recherche Pour le Developpement
Leroy, Éric Maurice
Gabon, Franceville
Centre International de Recherches Medicales de Franceville
Gabon, Franceville
Institut de Recherche Pour le Développement Ur178
Simard, Frédéric R.
Cameroon, Yaounde
Organisation de Coordination Pour la Lutte Contre Les Endémies en Afrique Centrale Cameroon
France, Marseille
Ird Institut de Recherche Pour le Developpement
Statistics
Citations: 251
Authors: 9
Affiliations: 6
Identifiers
Doi:
10.1089/vbz.2009.0005
ISSN:
15303667
Research Areas
Infectious Diseases
Study Locations
Cameroon
Gabon
Nigeria