Genetic identity, human blood indices, and sporozoite rates of malaria vectors in Gaa-Bolorunduro, Kwara State, Nigeria
Introduction: To identify the specific Anopheles mosquito sibling species responsible for malaria transmission, determine their vectorial potential, and predict suitable control measures, this study investigated genetic identities, human blood feeding, and sporozoite infection rates of endophilic A...
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The Journal of Infection in Developing Countries
2022-08-01
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| Series: | Journal of Infection in Developing Countries |
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| Online Access: | https://jidc.org/index.php/journal/article/view/13429 |
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| author | Abiodun Obembe Adedayo Olatunbosun Oduola Tolulope Amos Oyeniyi Abiodun Kanmi Olakiigbe Samson Taiwo Awolola |
| author_facet | Abiodun Obembe Adedayo Olatunbosun Oduola Tolulope Amos Oyeniyi Abiodun Kanmi Olakiigbe Samson Taiwo Awolola |
| author_sort | Abiodun Obembe |
| collection | DOAJ |
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Introduction: To identify the specific Anopheles mosquito sibling species responsible for malaria transmission, determine their vectorial potential, and predict suitable control measures, this study investigated genetic identities, human blood feeding, and sporozoite infection rates of endophilic Anopheles mosquitoes in Gaa-Bolorunduro, a cattle rearing community in Kwara State, Nigeria.
Methodology: Monthly pyrethrum spray collections of Anopheles mosquitoes were conducted for one year in addition to PCR characterization of sibling species and ELISA probing of human blood meal and sporozoite infections. Mean numbers and human blood indices (HBI) of the different Anopheles sibling species identified were compared.
Results: The total of 668 PCR-identified mosquitoes comprised 50.8% An. arabiensis, 46.7% An. gambiae, and 2.5% An. coluzzii. Annual mean numbers of An. arabiensis was significantly higher (p = 0.001) than An. coluzzii but not An. gambiae (p = 0.602). Proportions of An. arabiensis found with human blood (0.29) were lower compared to An. gambiae (0.72) and An. coluzzii (0.75). However, the annual mean HBI of An. arabiensis was not significantly higher than An. gambiae (p = 0.195) and An. coluzzii (p = 0.249). Plasmodium falciparum sporozoite infection rate was 1.6% in An. gambiae, 0.9% in An. arabiensis and 0% in An. coluzzii.
Conclusions: The prevalent An. arabiensis and An. gambiae mosquitoes found indoors, despite the outdoor cattle population barrier, could be targeted by community-scale utilization of long-lasting insecticide-treated bed nets. Further studies on outdoor mosquito surveillance and bovine blood meal identification are required for the recommendation of suitable complementary vector control measures for the community.
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| format | Article |
| id | doaj-art-0b3d72e9969441ea80f0c25ea9fe57d2 |
| institution | DOAJ |
| issn | 1972-2680 |
| language | English |
| publishDate | 2022-08-01 |
| publisher | The Journal of Infection in Developing Countries |
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| series | Journal of Infection in Developing Countries |
| spelling | doaj-art-0b3d72e9969441ea80f0c25ea9fe57d22025-08-20T02:57:13ZengThe Journal of Infection in Developing CountriesJournal of Infection in Developing Countries1972-26802022-08-01160810.3855/jidc.13429Genetic identity, human blood indices, and sporozoite rates of malaria vectors in Gaa-Bolorunduro, Kwara State, NigeriaAbiodun Obembe0Adedayo Olatunbosun Oduola1Tolulope Amos Oyeniyi2Abiodun Kanmi Olakiigbe3Samson Taiwo Awolola4Department of Biosciences and Biotechnology, Kwara State University, Malete, NigeriaDepartment of Zoology, University of Ilorin, NigeriaMolecular Entomology and Vector Control Research Laboratory, Nigerian Institute of Medical, Research, Yaba, Lagos, NigeriaMolecular Entomology and Vector Control Research Laboratory, Nigerian Institute of Medical, Research, Yaba, Lagos, NigeriaMolecular Entomology and Vector Control Research Laboratory, Nigerian Institute of Medical, Research, Yaba, Lagos, Nigeria Introduction: To identify the specific Anopheles mosquito sibling species responsible for malaria transmission, determine their vectorial potential, and predict suitable control measures, this study investigated genetic identities, human blood feeding, and sporozoite infection rates of endophilic Anopheles mosquitoes in Gaa-Bolorunduro, a cattle rearing community in Kwara State, Nigeria. Methodology: Monthly pyrethrum spray collections of Anopheles mosquitoes were conducted for one year in addition to PCR characterization of sibling species and ELISA probing of human blood meal and sporozoite infections. Mean numbers and human blood indices (HBI) of the different Anopheles sibling species identified were compared. Results: The total of 668 PCR-identified mosquitoes comprised 50.8% An. arabiensis, 46.7% An. gambiae, and 2.5% An. coluzzii. Annual mean numbers of An. arabiensis was significantly higher (p = 0.001) than An. coluzzii but not An. gambiae (p = 0.602). Proportions of An. arabiensis found with human blood (0.29) were lower compared to An. gambiae (0.72) and An. coluzzii (0.75). However, the annual mean HBI of An. arabiensis was not significantly higher than An. gambiae (p = 0.195) and An. coluzzii (p = 0.249). Plasmodium falciparum sporozoite infection rate was 1.6% in An. gambiae, 0.9% in An. arabiensis and 0% in An. coluzzii. Conclusions: The prevalent An. arabiensis and An. gambiae mosquitoes found indoors, despite the outdoor cattle population barrier, could be targeted by community-scale utilization of long-lasting insecticide-treated bed nets. Further studies on outdoor mosquito surveillance and bovine blood meal identification are required for the recommendation of suitable complementary vector control measures for the community. https://jidc.org/index.php/journal/article/view/13429MalariaAnophelesPlasmodiumsporozoitetransmission |
| spellingShingle | Abiodun Obembe Adedayo Olatunbosun Oduola Tolulope Amos Oyeniyi Abiodun Kanmi Olakiigbe Samson Taiwo Awolola Genetic identity, human blood indices, and sporozoite rates of malaria vectors in Gaa-Bolorunduro, Kwara State, Nigeria Journal of Infection in Developing Countries Malaria Anopheles Plasmodium sporozoite transmission |
| title | Genetic identity, human blood indices, and sporozoite rates of malaria vectors in Gaa-Bolorunduro, Kwara State, Nigeria |
| title_full | Genetic identity, human blood indices, and sporozoite rates of malaria vectors in Gaa-Bolorunduro, Kwara State, Nigeria |
| title_fullStr | Genetic identity, human blood indices, and sporozoite rates of malaria vectors in Gaa-Bolorunduro, Kwara State, Nigeria |
| title_full_unstemmed | Genetic identity, human blood indices, and sporozoite rates of malaria vectors in Gaa-Bolorunduro, Kwara State, Nigeria |
| title_short | Genetic identity, human blood indices, and sporozoite rates of malaria vectors in Gaa-Bolorunduro, Kwara State, Nigeria |
| title_sort | genetic identity human blood indices and sporozoite rates of malaria vectors in gaa bolorunduro kwara state nigeria |
| topic | Malaria Anopheles Plasmodium sporozoite transmission |
| url | https://jidc.org/index.php/journal/article/view/13429 |
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