Mosquito vectors and their epidemiological implications in the vicinities of Osun State University Main Campus, Osogbo, Nigeria

Abstract :

Mosquitoes are vectors of deadly and debilitating diseases. Proper understanding of the distribution and bionomics of these insects plays an important role in planning effective control measures. The present study was therefore conducted to provide information on larval habitats and species composition of mosquito vectors within the vicinities of Osun State University Main Campus, Osogbo, Nigeria. Larval sampling within the campus and adult collections from selected ten students’ hostels were carried out in the wet season over three years (2015-2017) using standard entomological protocols. Five species of mosquitoes namely, Aedes aegypti, Ae. vittatus, Eretmapodite chrystogaster, Culex quinquefasciatus and Anopheles gambiae sensu lato were found either singly or in sympatry at the breeding sites. Three hundred and twenty six (326) endophagic mosquitoes were collected at the selected hostels during the study period. Of these, 177(53.8%) were C. quinquefasciatus while Ae. aegypti 64(20.4%), Mansonia africana 41(12.5%), An. gambiae s.l 31(9.4%) and Coquillettidia maculipennis 13(3.95%) constituted the rest of mosquitoes collected. The population of C. quinquefasciatus was statistically higher than other mosquitoes (p<0.05) but the differences in abundance among other species were not statistically significant (p>0.05). The mosquito abundance increased as wet season progressed but the differences in monthly collection were not significant (p>0.05). The mosquitoes collected are known vectors of dengue fever, malaria, yellow fever and bancroftian filariasis (elephantiasis), of which the high prevalence of these diseases have been reported in Osogbo metropolis or its adjoining communities. There is therefore need for the management of Osun State University to institute periodic public health education for the students on various mosquito control and preventive measures in order to reduce the risks of mosquito-borne diseases in the study area

Keyword :

Mosquitoes, larvae, diseases, epidemiology, Osogbo

Author(s) : Adeleke, M. A.
Downloads : 355
Published Issue : 2019 Vol. 14 Number 1

2019 Vol. 14 Number 1