Anthropophilic mosquitoes and malaria transmission in the eastern foothills of the central highlands of Madagascar
| Autor: | Vincent Robert, J. Ratovonjato, Lala Andrianaivolambo, Milijaona Randrianarivelojosia, Olivier Domarle, Frédéric Ariey, Gilbert Le Goff, Arthur M. Talman |
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| Přispěvatelé: | Unité de Recherche sur le Paludisme [Antananarivo, Madagascar], Institut Pasteur de Madagascar, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP), Institut de Recherche pour le Développement (IRD), Institut Pasteur du Cambodge, Réseau International des Instituts Pasteur (RIIP), This study was supported by the Institut Pasteur de Madagascar and by the Institut de Recherche pour le Développement. |
| Rok vydání: | 2010 |
| Předmět: |
Wet season
Adult Veterinary medicine Plasmodium Veterinary (miscellaneous) Anopheles gambiae [SDV]Life Sciences [q-bio] 030231 tropical medicine Plasmodium vivax Plasmodium falciparum Context (language use) Antigens Protozoan Enzyme-Linked Immunosorbent Assay Disease Vectors 030308 mycology & parasitology Anopheles funestus 03 medical and health sciences 0302 clinical medicine parasitic diseases medicine Madagascar Animals Humans Transmission Central Highlands Anopheles mascarensis 0303 health sciences biology Ecology Anopheles Biodiversity biology.organism_classification medicine.disease 3. Good health Malaria Anopheles arabiensis Infectious Diseases Culicidae Insect Science Parasitology Female Seasons Highlands |
| Zdroj: | Acta Tropica Acta Tropica, Elsevier, 2010, 116 (3), pp.240-245. ⟨10.1016/j.actatropica.2010.08.017⟩ |
| ISSN: | 0001-706X |
| DOI: | 10.1016/j.actatropica.2010.08.017⟩ |
| Popis: | Malaria remains a major public health problem in Madagascar, as it is the first cause of morbidity in health care facilities. Its transmission remains poorly documented. An entomological study was carried out over 1 year (October 2003–September 2004) in Saharevo, a village located at an altitude of 900 m on the eastern edge of the Malagasy central highlands. Mosquitoes were sampled weekly upon landing on human volunteers and in various resting-places. Out of 5515 mosquitoes collected on humans, 3219 (58.4%) were anophelines. Eleven anopheline species were represented, among which Anopheles funestus , Anopheles gambiae , Anopheles arabiensis and Anopheles mascarensis . Out of 677 mosquitoes collected in bedrooms by pyrethrum spray catches and in Muirhead-Thomson pits, 656 (96.9%) were anopheline belonging to these four latter species. The proportion of mosquitoes that fed on human varied according to the resting-places and the mosquito species: 86% of An. funestus resting in bedrooms fed on humans, whereas only 16% of An. funestus and 0% of An. mascarensis resting in pits fed on humans. The proportion of anopheline mosquitoes infected with human Plasmodium was measured by circumsporozoite protein-ELISA: 10/633 An. funestus (1.58%), 1/211 An. gambiae s.l. (0.48%) and 2/268 An. mascarensis (0.75%). The annual entomological inoculation rate (number of bites of infected anophelines per adult) was estimated at 2.78. The transmission was mainly due to An. funestus and only observed in the second half of the rainy season, from February to May. These results are discussed in the context of the current malaria vector control policy in Madagascar. |
| Databáze: | OpenAIRE |
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