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Impact of urban agriculture on malaria vectors in Accra, Ghana

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Klinkenberg, Eveline, McCall, Philip ORCID: https://orcid.org/0000-0002-0007-3985, Wilson, M. D., Amerasinghe, F. P. and Donnelly, Martin ORCID: https://orcid.org/0000-0001-5218-1497 (2008) 'Impact of urban agriculture on malaria vectors in Accra, Ghana'. Malaria Journal, Vol 7.

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Abstract

To investigate the impact of urban agriculture on malaria transmission risk in urban Accra larval and adult stage mosquito surveys, were performed. Local transmission was implicated as Anopheles spp. were found breeding and infected Anopheles mosquitoes were found resting in houses in the study sites. The predominant Anopheles species was Anopheles gambiae s.s.. The relative proportion of molecular forms within a subset of specimens was 86% S-form and 14% M-form. Anopheles spp. and Culex quinquefasciatus outdoor biting rates were respectively three and four times higher in areas around agricultural sites (UA) than in areas far from agriculture (U). The annual Entomological Inoculation Rate (EIR), the number of infectious bites received per individual per year, was 19.2 and 6.6 in UA and U sites, respectively. Breeding sites were highly transitory in nature, which poses a challenge for larval control in this setting. The data also suggest that the epidemiological importance of urban agricultural areas may be the provision of resting sites for adults rather than an increased number of larval habitats. Host-seeking activity peaked between 2-3 am, indicating that insecticide-treated bednets should be an effective control method.

Item Type: Article
Additional Information: The electronic version of this article is the complete one and can be found online at: http://www.malariajournal.com/content/7/1/151
Uncontrolled Keywords: anopheles-gambiae complex sub-saharan africa insecticide resistance plasmodium-falciparum burkina-faso cote-divoire transmission mosquitos urbanization identification
Subjects: QX Parasitology > Insects. Other Parasites > QX 510 Mosquitoes
QX Parasitology > Insects. Other Parasites > QX 650 Insect vectors
WC Communicable Diseases > Tropical and Parasitic Diseases > WC 750 Malaria
Faculty: Department: Groups (2002 - 2012) > Vector Group
Digital Object Identifer (DOI): https://doi.org/10.1186/1475-2875-7-151
Depositing User: Users 183 not found.
Date Deposited: 10 Aug 2010 13:32
Last Modified: 06 Feb 2018 13:00
URI: https://archive.lstmed.ac.uk/id/eprint/830

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