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The present study confirms the presence of pyrethroid resistance among Anopheles gambiae s.l mosquitos in Côte d'Ivoire and reports the observation of such resistance in two other countries in West Africa (Benin and Burkina Faso). Malaria vector populations from Cameroon (Central Africa), Senegal (West Africa) and Botswana (southern Africa) were found to be(More)
The dispersion of Anopheles gambiae Giles s.l. from larval breeding places was examined in the towns of Yaounde and Edea, Cameroon. The study areas are characterized by hilly reliefs of approximately 40 m and by larval breeding places in the swampy valleys. Mosquito density was estimated by night-biting indoor catches carried out during 1 yr in three(More)
In support of ongoing immunologic studies on immunity to Plasmodium falciparum, demographic, entomologic, parasitologic, and clinical studies were conducted in two Cameroonian villages located 3 km apart. Simbok (population = 907) has pools of water present year round that provide breeding sites for Anopheles gambiae, whereas Etoa (population = 485) has(More)
Since 1969, 63 cases of airport malaria have been reported in Western Europe, 24 of which occurred in France. Most were due to Plasmodium falciparum. In 1994, 7 cases occurred in and around Roissy Charles de Gaulle airport (CDG), showing 4 types of contamination: among employees working on airstrips or opening containers, among residents living near the(More)
An entomological study was carried out during 1990 in the town of Edea in the south of Cameroon to study anthropophilic mosquitoes with special reference to malaria transmission. Man-biting mosquitoes were caught regularly during one night each month in two different districts: Bilalang which is a well planned suburb with 160 houses on a hill-top, provided(More)
An entomological survey conducted in 2002 in Guinea Bissau aimed i) to study the distribution of the members of Anopheles gambiae Giles complex (Diptera: Culicidae) throughout four ecological areas extended from mangrove to savannah ii) to evaluate the insecticide susceptibility status of these malaria vectors exposed to permethrin 0.75% and DDT4%, and(More)
A longitudinal study on malaria vectors and transmission was carried out in a forest-savannah transitional area in Cameroon. Indoor all night mosquito collections on human bait were performed during one year in two villages: Nditam and Ngoume. Nditam was located in a secondary forest block surrounded by savannah, while Ngoume was situated in an ancient(More)
In order to evaluate the financial charges of antivector control and disease at family level for "malaria disease" as perceived by Yaounde inhabitants, the authors carried out a transverse survey on a representative sample of populations derived from sampling surveys at different degrees. Malaria, so defined, represents a dominating endemic for which the(More)
A parasitological study of malaria was carried out in two central districts of Yaounde (Cameroon) for one year. The Essos district was built near marshy shallows. The Obili district was comparable to Essos but there were many poorly maintained fish breeding pounds. Surveys were carried out quarterly in each district with a sample of 22 and 16 families at(More)
Nsimalen, a village in Southern Cameroon, has been deforested over a surface of 370 hectares for the construction of the new Yaounde international airport (Cameroon). Mosquitoes night catches on human bait were performed over a year in two hamlets of this village, one adjoining the airport and the other situated 3 kilometers off the deforested area. The aim(More)