Morphological and Molecular Characterization of Anopheles Mosquitoes and Their Behavioural Patterns in Uyo, Nigeria
Journal Title: International Journal of TROPICAL DISEASE & Health - Year 2016, Vol 14, Issue 2
Abstract
Aims: Malaria is a public health problem in Nigeria. Knowledge of some baseline data such as Human Biting Rates (HBR) is needed to assess the epidemiology of the disease and in estimating the vector-human contact. This study provides information on the behavioural patterns of anopheles mosquitoes in Uyo. Study Design: A six months study was carried out in Uyo, Nigeria where no information exists on the major malaria vectors associated with human malaria. Sample collection was carried out between May and October 2013 using Knockdown and Human Landing Catches (HLC) techniques. Methodology: Adults mosquitoes were collected in two areas in Ewet Offot Community. Nine houses were randomly selected in each location using Simple Random Sampling Method. Mosquitoes belonging to the Anopheles gambiae complex were further characterized and identified by a molecular method using Polymerase Chaiin Reaction (PCR). Results: Two anophelines species were collected by the sampling methods consisting of 21(23.3%) Anopheles nili and 69(76.7%) Anopheles gambiae complex. A Polymerase Chain Reaction (PCR) based test on the An. gambiae complex identified 66(96.0%) as An. gambiae sensu stricto. The study also revealed that the resting behaviour of An. gambiae complex species in this area is endophilic whereas the resting behaviour of An. nili is exophagic/exophilic. The peak biting activity of An. gambiae complex species occurred at 11 pm (indoor) and 7 pm (outdoor) in July whereas that of An. nili occurred at 10 pm (indoor) and 6 pm (outdoor) in June. The Human Biting Rates (HBR) recorded for An. gambiae was higher than An. nili and the total number An. gambiae collected was more than An. nili. Conclusion: There is a need for a comprehensive knowledge on the behaviour and heterogeneities that exist within and among malaria vector species in this area if the goal of malaria elimination is to be achieved.
Authors and Affiliations
Inyang A. Atting, Mfonobong E. Akpan
Keywords
Related Articles
- EP ID EP328922
- DOI 10.9734/IJTDH/2016/23394
- Views 48
- Downloads 0
Humoral Immune Response in Parvoviral Vaccinated Dogs Experimentally Infected with Trypanosoma congolense and Trypanosoma brucei
The humoral immune response in parvoviral vaccinated dogs experimentally infected with single and mixed infection of Trypanosoma congolense and Trypanosoma brucei was studied in mongrel dogs. Twenty mongrel dogs of mixed...
Prevalence and Intensity of Schistosomiasis in Adjacent Human Communities along the River Kochi, West Nile Region of Uganda
Aim: To assess the prevalence of Schistosomiasis in adjacent human communities along the River Kochi, West Nile region of Uganda in relation to the presence of infected Biomphalaria snails Study Design: A combination o...
Spatial Modelling of Fever Prevalence and Suspected Malaria Cases among Children: A Cross-sectional Study
Background: Disease morbidity, mortality and speed of spread vary substantially spatially. These have important implications for effective planning and targeting intervention strategies. The purpose of this study was to...
Superficial Fungal Skin Infections in Patients Attending Zliten Teaching Hospital (North West of Libya)
Aims: This study was carried out to know the frequency of occurrence of different clinical types of dermatophytosis and Pityriasis versicolor and its distribution among different age groups and sexes and also, in particu...
Risk Factors of Otitis Media with Effusion among Preschool Children in Port Harcourt, Nigeria
Background: Otitis media with effusion (OME) is the commonest cause of hearing loss in children worldwide. It has a lot of host related and environmental factors that influence it’s development. These factors had remaine...