Molecular Identification, Species Composition and Distribution Maps of Malaria Vector Species in SelectedCommunities in Benue State, North Central Nigeria.

Ameh, Aju

doi:10.9790/264x-03020109

Cited by 4 publications

(2 citation statements)

References 17 publications

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“…coustani and An. nili in Kontagora is consistent with the report of their occurrence in Benue and Kwara states, Nigeria byAju-Ameh et al (2017) andOduola et al…”

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confidence: 91%

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Species Composition and Distribution of Anopheles Mosquito Vectors in Kontagora, Niger State, Nigeria

Garba

2023

IRJNS

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The endemicity of malaria in any locality in determine by indigenous Anopheles species composition, distribution as well as Plasmodium infectivity. This research was conducted to determine the species composition and distribution of Anopheles mosquito vectors in Kontagora, Niger State Nigeria. Adult mosquitoes were collected from five (5) sampling sites widely located in Kwangwara, Tudun wada, Dadin kowa, Sabon gari and Usubu areas of Kontagora metropolis. Collected mosquitoes were taken and examined in the laboratory, sorted into Anopheles and identified into species using standard taxonomic keys and Polymerase Chain Reaction (PCR) techniques respectively. Data generated were analysed using the Statistical Package for Social Scientists (SPSS) software version 20.3 and excel package. Anopheles species composition was expressed as the percentage of total Anopheles mosquitoes collected. Chi-square test was used to compare the results from the five sampling locations. The results of the study revealed six (6) Anopheles species; namely An. gambiae, An. funestus, An. squamosus, An. coustani, An. nili and An. maculipalpis, whose distribution varied significantly (p < 0.05) between sampling locations with An. gambiae predominating. Findings therefore revealed the preponderance of Anopheles gambiae species, indicating high malaria transmission potentials in the study area. This underscores the importance of generating intensive spatio-temporal information on the risk factors associated with malaria transmission on a local scale.

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“…coustani and An. nili in Kontagora is consistent with the report of their occurrence in Benue and Kwara states, Nigeria byAju-Ameh et al (2017) andOduola et al…”

supporting

confidence: 91%

“…However, the predominance of An. coluzzii in some parts of North Central Nigeria was reported by Aju-Ameh et al (2017) in Benue state and Oduola et al . (2016) in Kwara State.…”

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confidence: 86%

Species Composition and Distribution of Anopheles Mosquito Vectors in Kontagora, Niger State, Nigeria

Garba

2023

IRJNS

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Species Composition of Anopheles (Diptera: Culicidae) in Selected Forested Tourist Areas of Nigeria Endemic for Malaria

Oduwole

Oringanje

Oduola

et al. 2020

Journal of Medical Entomology

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The study was carried out to determine relative abundance, species diversity, of Anopheles species (Diptera: Culicidae) in selected forested areas in Cross River State, Nigeria and the prevalence of malaria infection in the specimens. Mosquitoes were collected using pyrethrum spray catch and Centre for Disease Control light traps modified with yeast and sugar to generate carbon dioxide (CO2) and identified using morphological identification keys. We used a multiplex polymerase chain reaction followed by restriction fragment length polymorphism (PCR-RFLP) to simultaneously distinguish sibling species of the An. gambiae s.l, including separation of An. gambiae s.s. and An. coluzzii (Diptera: Culicidae). The samples were also screened for Plasmodium infection using the enzyme-linked immunosorbent assay. One hundred and four Anopheles specimens were collected during the study of which 97% was An. gambiae complex and 3% was An. rufipes (Diptera: Culicidae). Only 77% of the An. gambiae s.l. was identify to species level. The result shows that 41.6% was An. gambiae s.s. and 34.6% was An. coluzzii. No sporozoite of Plasmodium was detected in the Anopheles species. The study also found a hybrid form of An. gambiae s.s. and An. coluzzii. These findings suggest the first documented evidence of hybrid forms of An. gambiae s.s./An. coluzzii in South Eastern Nigeria although its epidemiological implication is still not clear.

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Distribution of members of the Anopheles gambiae complex in selected forested tourist areas of Cross River State, Nigeria

Oduwole

Oduola

Oringanje

et al. 2019

Preprint

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Background:The Anopheles gambiae mosquitoes are the most abundant, efficient and widely distributed vectors of the malaria parasite in sub-Saharan Africa. In most African countries, where malaria control programmes are focused on the use of long-lasting insecticide treated bed net, there is need to evaluate the biting behaviour and the identity of such mosquitoes to determine the relevance and appropriateness of the control measure implemented. Method: This study investigated the distribution and molecular characteristics of theAnopheles species in selected forested areas in Cross River State, Nigeria. Mosquitoes were collected using pyrethrum spray catch and Centre for Disease Control light traps modified with yeast and sugar to generate carbon dioxide (CO 2 ). Anopheles gambiae complex was identified using multiplex polymerase chain reaction followed by restriction fragment length polymorphism (PCR-RFLP) for molecular forms characterization. Results:One hundred and four Anopheles gambiae s.l. were collected during the study. Multiplex PCR showed 75% of the species complex were A. gambiae s.s. and further characterization using PCR-RFLP showed that 53.8% of the A. gambiae s.l.identified were A. gambiae s.s.while 24.4% were A.coluzzii. The two species of the A. gambiae s.l. were found to be most abundant. The study also reported a 1.3% hybrid form of Anopheles gambiae s.s.and Anopheles coluzzii. Conclusion:The findings suggest the first documented evidence of hybrid forms of A. gambiae s.s./A.coluzzii in South Eastern Nigeria although its epidemiological implication is still not clear.3

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Molecular Identification, Species Composition and Distribution Maps of Malaria Vector Species in SelectedCommunities in Benue State, North Central Nigeria.

Cited by 4 publications

References 17 publications

Species Composition and Distribution of Anopheles Mosquito Vectors in Kontagora, Niger State, Nigeria

Species Composition and Distribution of Anopheles Mosquito Vectors in Kontagora, Niger State, Nigeria

Species Composition of Anopheles (Diptera: Culicidae) in Selected Forested Tourist Areas of Nigeria Endemic for Malaria

Distribution of members of the Anopheles gambiae complex in selected forested tourist areas of Cross River State, Nigeria

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