Relationship of annual entomological inoculation rates to malaria transmission indices, Bayelsa State, Nigeria.

Background & Objectives: Generally, indepth understanding of the epidemiology of malaria is considered a prerequisite for planning effective control measures in the endemic regions like sub-Saharan Africa. This study focuses on the relationship of entomological inoculation rates (EIRs) to malaria incidence and prevalence rates across eco-vegetational zones in Bayelsa State, Nigeria.

Methods: Mosquito sampling was undertaken in seven towns/villages in seven local government areas (LGAs) in three eco-vegetational zones.

Spatial distribution of the sibling species of Anopheles gambiae sensu lato (Diptera: Culicidae) and malaria prevalence in Bayelsa State, Nigeria.

Background: Much of the confusing ecophenotypic plasticity of Anopheles gambiae sensu lato is attributable to the differential biological traits of the sibling species, with their heterogeneous geographical distribution, behavioral dissimilarities and divergent population dynamics. These differences are critical to their roles in malaria transmission. Studies were, therefore, undertaken on the spatial distribution of these species and malaria prevalence rates in Bayelsa State, September, 2008-August 2010.