| Conditions of malaria transmission in Dakar from 2007 to 2010. | Previous studies in Dakar have highlighted the spatial and temporal heterogeneity of Anopheles gambiae s.l. biting rates. In order to improve the knowledge of the determinants of malaria transmission in this city, the present study reports the results of an extensive entomological survey that was conducted in 45 areas in Dakar from 2007 to 2010. | 2011 | 22018223 |
| spatial heterogeneity and temporal evolution of malaria transmission risk in dakar, senegal, according to remotely sensed environmental data. | the united nations forecasts that by 2050, more than 60% of the african population will live in cities. thus, urban malaria is considered an important emerging health problem in that continent. remote sensing (rs) and geographic information systems (gis) are useful tools for addressing the challenge of assessing, understanding and spatially focusing malaria control activities. the objectives of the present study were to use high spatial resolution spot (satellite pour l'observation de la terre) ... | 2010 | 20815867 |
| highly focused anopheline breeding sites and malaria transmission in dakar. | urbanization has a great impact on the composition of the vector system and malaria transmission dynamics. in dakar, some malaria cases are autochthonous but parasite rates and incidences of clinical malaria attacks have been recorded at low levels. ecological heterogeneity of malaria transmission was investigated in dakar, in order to characterize the anopheles breeding sites in the city and to study the dynamics of larval density and adult aggressiveness in ten characteristically different urb ... | 2009 | 19552809 |
| malaria transmission in dakar: a two-year survey. | according to entomological studies conducted over the past 30 years, there was low malaria transmission in suburb of dakar but little evidence of it in the downtown area. however; there was some evidence of local transmission based on reports of malaria among permanent residents. an entomological evaluation of malaria transmission was conducted from may 2005 to october 2006 in two areas of dakar. | 2008 | 18796138 |
| gametocytemia and infectivity to mosquitoes of patients with uncomplicated plasmodium falciparum malaria attacks treated with chloroquine or sulfadoxine plus pyrimethamine. | plasmodium falciparum gametocytemia and its related infectivity for mosquitoes was studied in 115 patients (median age = 18 years, range = 4-45) with simple malaria attacks who lived in the hypoendemic area of dakar, senegal. patients were included in a 28-day in vivo sensitivity test after treatment with chloroquine (cq, n = 82) or sulfadoxine plus pyrimethamine (sp, n = 33). the prevalence of resistant infections was 58.5% in those treated with cq and 0% in those treated with sp. the gametocyt ... | 2000 | 10813475 |
| survival and emergence of immature anopheles arabiensis mosquitoes in market-gardener wells in dakar, senegal. | anopheles arabiensis is the unique species of the an. gambiae complex observed in the wells dug by market-gardeners in the dakar area. in order to relate the numbers of immature stages and emerging adults mosquitoes, population measurements were performed in eight wells in which an. arabiensis was the only mosquito species. mean density of immature stages was measured using two sampling methods, the dipping with a tray by giving 50 dips in each well, and the quadrat with a frame on 2 or 3 m2 in ... | 1999 | 10416193 |
| ecology of larval mosquitoes, with special reference to anopheles arabiensis (diptera: culcidae) in market-garden wells in urban dakar, senegal. | the urban area of dakar, senegal, contains > 5,000 market-garden wells that provide permanent sites for mosquito larvae, in particular anopheles arabiensis patton, the major vector of malaria. a study of the bioecology of mosquito larvae was conducted over 1 yr with a monthly visit to 48 of these wells. overall, 9,589 larvae were collected of which 80.1% were culicinae and 11.9% anophelinae. larvae from stages iii and iv (n = 853) were identified to 10 species. an. arabiensis represented 86% of ... | 1998 | 9835685 |
| epidemiology of seasonal falciparum malaria in an urban area of senegal. | a 15-month longitudinal survey was carried out to examine entomological and parasitological aspects of human malaria transmission in pikine, a city located in the sudan savanna zone on the cap vert peninsula in the west of senegal. the anopheline population was sampled twice weekly indoors by night human bait capture. during the same period, thick and thin blood films were collected from 296 children at 2-month intervals. anopheles arabiensis was the only species responsible for transmission of ... | 1983 | 6360402 |
| vector density gradients and the epidemiology of urban malaria in dakar, senegal. | the dispersion of anopheline mosquitoes from their breeding places and its impact on malaria epidemiology has been investigated in dakar, senegal, where malaria is hypoendemic and almost exclusively transmitted by anopheles arabiensis. pyrethrum spray collections were carried out along a 910-meter area starting from a district bordering on a permanent marsh and continuing into the center of the city. according to the distance from the marsh, vector density (the number of an. arabiensis per 100 r ... | 1992 | 1354414 |