| possible contributing factors to the paucity of yellow fever epidemics in the ashanti region of ghana, west africa. | yellow fever virus vectors identified in the ashanti region of ghana included aedes aegypti, aedes africanus, aedes luteocephalus and aedes vittatus. other mosquito species, unrelated to yellow fever transmission, identified in this study included culex tigripes, culex thalassius, culex decens, culex tarsalis, anopheles gambiae, anopheles stephansi and toxorynchites brevipalpis. factors generally known to influence yellow fever transmission were also studied in the ashanti region. these included ... | 1996 | 8625858 |
| blood-feeding behavior of anopheles gambiae and anopheles melas in ghana, western africa. | anopheles gambiae is the predominant malaria vector species in ghana, western africa, with a strong local presence of anopheles melas theobald along the southern coast. we studied the biting behavior of these two species of the anopheles gambiae complex inland and at the coast in ghana, with special attention to the local peoples' preference for outdoor sleeping. we collected mosquitoes at two sites in 2007, representing the moist semideciduous forest zone and the strand and mangrove zone, and t ... | 2010 | 20180305 |
| insecticide resistance in malaria vector mosquitoes in a gold mining town in ghana and implications for malaria control. | malaria control programmes in africa, for the most part, address only treatment of the disease and supply of insecticide treated bed nets. the impact of these restricted programmes has been limited and new approaches are being advocated, including integrated vector management strategies and partnerships with industry. mosquito surveys were carried out for anglogold/ashanti in preparation for their implementation of an integrated malaria control programme at the obuasi gold mine in ghana. malaria ... | 2006 | 17253060 |
| dieldrin resistance in the malaria vector anopheles gambiae in ghana. | anopheles gambiae giles s.s. (diptera: culicidae) is one of the principal vectors of malaria in the ashanti region of central ghana. high levels of resistance to dieldrin were recorded in a wild-caught sample from obuasi (south of kumasi) as well as a laboratory colony established using material from the wild population. cytogenetic analysis of wild-caught and laboratory samples revealed chromosomal polymorphism for inversions 2la and 2rb. although inversion 2la has previously been shown to be a ... | 2006 | 17044880 |
| does irrigated urban agriculture influence the transmission of malaria in the city of kumasi, ghana? | to verify the possible impact of irrigated urban agriculture on malaria transmission in cities, we studied entomological parameters, self-reported malaria episodes, and household-level data in the city of kumasi, ghana. a comparison was made between city locations without irrigated agriculture, city locations with irrigated urban vegetable production, and peri-urban (pu) locations with rain-fed agriculture. in the rainy as well as dry seasons, larvae of anopheles spp. were identified in the irri ... | 2004 | 14732235 |