[ The aggressive cycle of Anopheles gambiae s.s. inside houses and malaria transmission in the Bouake region (Côte d'Ivoire). Value of using impregnated mosquito nets].
The biting indoor cycle of Anopheles gambiae s.s. was studied in a rural zone near Bouaké from 6 pm to 6 am. The cycle was characterized by a peak between midnight and 1 am (n = 19,181). The parturity rate of biting females regularly increased from 6 pm until 3 am, then remained at a high level up to 6 am (n = 14,239). Infected bites were observed from 7 pm to 6 am with a maximum between 0 and 3 am, and 96.7% of them were obtained between 11 pm and 4 am (n = 219). It appears that malaria transmission occurs essentially at the moment when villagers are in bed. The correct use of impregnated bed nets may thus greatly reduce malaria transmission.
Dossou-Yovo
J
J
Institut Pierre Richet/OCCGE, Côte d'Ivoire.
Diarrassouba
S
S
Doannio
J
J
Darriet
F
F
Carnevale
P
P
D000818:Animals; D000852:Anopheles / Q000502:physiology*; D001513:Beds; D001522:Behavior, Animal; D002940:Circadian Rhythm; D007560:Cote d'Ivoire; D005260:Female; D006798:Housing; D006801:Humans; D007299:Insect Bites and Stings; D008288:Malaria / Q000635:transmission*; D009032:Mosquito Control