NKAHE Diane Leslie1
1University of Yaoundé I/Cameroon
CaHReF 2018, Yaoundé Congres hall, 08 – 11 January 2019 , OSEP022
Background: The rapid urbanization of the city of Yaoundé makes some physical deep transformations through the construction of dam, swamp exploitation and unplanned housing construction. However, the impact of these modifications on malaria transmission pattern is not yet knew
Objectif: The main objective of this study was to compare malaria transmission pattern in a suburban district and an urban district of the city of Yaoundé.
Methodolody: The study was conducted from March to December 2017 in two districts of the city of Yaoundé: Mendong (sub-urban district) and Nsam (urban district). Mosquitoes were collected using CDC-Light Traps and Human Landing Catches and identified using morphological identification keys. Some molecular analysis such as PCR, TapMan or ELISA allowed us to further identify the vectors species and determine their infection status to Plasmodium respectively.
Results: A total of 1,154 anophelines were collected (50.26% at Mendong and 49.74% at Nsam). Six anophelinae species were found at Mendong and four species at Nsam. The abundance of An. funestus and An. gambiae were similar at Mendong (p>0.05), whereas at Nsam An. gambiae were most abundant (<0.05). Molecular identification revealed the presence of An. gambiae and An. coluzzii in both sites. Within the An. funestus group, An. funestus and An. leesoni were recorded. The infection rate was 5.03% at Mendong and 1.98% at Nsam. The entomological inoculation rate was 71.33 infected bites/man/year at Mendong and 70.3 ib/m/year at Nsam.
Conclusion/Recommandation: This study reveals a high malaria transmission in sub-urban area as well as in urban area.
These results have to be taken into account to improve vector control strategies in the city of Yaoundé.
Key Words: Malaria transmission, anophelines, sub-urban, urban, Yaoundé