Abstract
Lymphatic filariasis (LF) is a parasitic infectious disease that is transmitted by several species of mosquitoes. Diagnosis of LF is done in both human hosts and vectors. Effective mosquito collection method(s) is/are required in order to collect large numbers of mosquitoes with high chances of infectivity.In this study, 3 mosquito sampling methods were compared. Mosquitoes were collected from 6 randomly selected villages of Tana River County, Kenya. The effectiveness of CDC light traps, gravid traps, and pyrethrum spray methods in collecting mosquitoes were compared. Mosquitoes were morphologically identified into genera and species level, and mosquito dissection was done in search of microfilariae larvae to assess the infection and infectivity rates. Data was analysed by SPSS version 15.0 and analysis of variance (ANOVA).A total of 1632 female mosquitoes were collected belonging to 5 mosquito genera: Culex, Anopheles, Aedes, Mansonia, and Ficalbia. The most abundant mosquito genera was Culex. Light traps obtained the most blood-fed mosquitoes.Light traps were found to be the most effective method of mosquito collection in terms of high catches and high infectivities.
Highlights
Lymphatic filariasis (LF) is a chronic parasitic disease of public health and socioeconomic significance in tropical and subtropical countries
Mosquitoes are the main vectors of lymphatic filariasis parasites: the Culex, Anopheles, and Aedes species transmit Wuchereria bancrofti and the Mansonia and Anopheles species are involved in the transmission of Brugia malayi.[2]
The mean difference of number of mosquitoes collected by the 3 methods was significant, (P
Summary
Lymphatic filariasis (LF) is a chronic parasitic disease of public health and socioeconomic significance in tropical and subtropical countries. The Global Programme to Eliminate Lymphatic Filariasis was launched in 20001 with the aim of interrupting LF transmission through chemotherapy and vector control. Mosquitoes are the main vectors of lymphatic filariasis parasites: the Culex, Anopheles, and Aedes species transmit Wuchereria bancrofti and the Mansonia and Anopheles species are involved in the transmission of Brugia malayi.[2]. The development and transmission of the LF parasite follows this cycle. Upon feeding from infected blood, mosquitoes acquire microfilariae (L1) from host circulation system; development of the parasite takes place in the mosquito (L2) to the infective stage (L3). Lymphatic filariasis (LF) is a parasitic infectious disease that is transmitted by several species of mosquitoes. Effective mosquito collection method(s) is/are required in order to collect large numbers of mosquitoes with high chances of infectivity
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