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The geographical distribution of the malaria vector Anopheles arabiensis in Cabo Verde, 2016–2023

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Resumo:Background: Integrated malaria vector control is crucial to eliminate or reduce infection risk. Understanding vector species distribution, behavior, and environmental factors such as climate, topography, and preferred aquatic habitats is essential. Objectives: Herein, we aim to compile data from 2016 to 2023 on the primary malaria vector in Cabo Verde to support health surveillance and elimination certification. Materials and methods: Mosquitoes larvae were collected using standard sampling tools, and adults using Biogents Sentinel traps, mechanical aspiration and CDC UV light traps, both indoor and in the surroundings of urban and rural areas. Results: Six hundred fifty-seven specimens of Anopheles gambiae s.l. were identified by morphological methods and PCR-based techniques as Anopheles arabiensis in 12 municipalities from six of the nine inhabited islands, namely, São Vicente, São Nicolau, Maio, Boavista, Santiago, and Santo Antão. Conclusions: We believe this is the first scientific report of the presence of An. arabiensis on the island of Santo Antão. The Anopheles arabiensis remains the only species in the An. gambiae complex in the Cabo Verde islands. These results offer vital insights for epidemiological surveillance and effective malaria control, especially in light of the recent WHO certification declaring the country malaria-free. However, it is imperative to conduct further studies that comprehensively address epidemiological and entomological aspects, with a special focus on bionomics, genetic determinants of the parasite-vector association, and the characterization of larval habitats. These investigations have the potential to guide a more informed and strategic implementation of malaria vector control measures in Cabo Verde.
Autores principais:Leal, Silvânia Da Veiga
Outros Autores:Sousa, Celivianne de; Monteiro, Davidson Daniel Sousa Rocha; Mendonça, Maria da Luz Lima; Gonçalves, Adéritow Augusto Lopes Macedo; DePina, Adilson José
Assunto:Anopheles arabiensis Cabo Verde geographical distribution malaria vector control mosquito surveillance Infectious Diseases Microbiology (medical) Public Health, Environmental and Occupational Health SDG 3 - Good Health and Well-being SDG 13 - Climate Action
Ano:2024
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:Universidade Nova de Lisboa
Idioma:inglês
Origem:Repositório Institucional da UNL

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