This is unlike previous studies in other areas of southern forested Cameroon where transmission generally peaks in the rainy season. Environmental modifications due to agro-industrial activities might have influenced vector distribution and the dynamics of malaria transmission in this area.
The present study showed, once again, the effectiveness of bendiocarb on anopheles populations resistant to pyrethroids.
Current malaria vector control relies almost exclusively on killing adult mosquitoes with chemical insecticides deployed as either insecticide-treated nets (ITNs) or indoor residual sprays (IRS).
Here we examine this predator's preference profile in greater detail than has been achieved before. Lures (dead prey mounted in life-like posture) were made from two mosquitoes (Anopheles gambiae and Culex quinquefasciatus) and a non-biting midge (Clinotanypus claripennis).
Here we describe the generation of a global map of the dominant vector species (DVS) of malaria that makes use of predicted distribution maps for individual species or species complexes.
Twenty third instar larvae of both Anopheles gambiae s.s. and Cx. quinquefasciatus were exposed to different dosages of plant extract in both laboratory and semi- field environments. Observation of the mortality response was assessed at intervals of 12, 24, 48 and 72 hours.
The results suggest that An. subpictus species B/An. sundaicus breed in fresh, brackish and nearly saline water while An. subpictus species C and D do so in fresh and less brackish waters in Sri Lanka as in India.
Mosquitoes transmit serious human diseases, causing millions of deaths every year. Use of synthetic insecticides to control vector mosquitoes has caused physiological resistance and adverse environmental effects in addition to high operational cost.
Laboratory studies with susceptible and resistant strains of An. culicifacies and An. stephensi, coupled with limited field studies with multiple insecticide-resistant An. culicifacies have shown that chlorfenapyr can be a suitable insecticide for malaria vector control, in multiple insecticide resistant mosquitoes especially in areas with pyrethroid resistant mosquitoes.
An entomological survey was conducted in Cameroon between October 2004 and September 2005, in nine localities targeted for malaria vector control based on adult productivity and variability.