Results 91 to 100 of about 80,824 (265)

Pyrethroids resistance intensity and resistance mechanisms in Anopheles gambiae from malaria vector surveillance sites in Nigeria

PLoS ONE, 2018
Anopheles gambiae, An. coluzzii and An. arabiensis are the three major vectors of malaria in Nigeria. These mosquitoes have developed resistance to different insecticides. Insecticides resistance intensity assay was recently introduced to provide insight
T. Awolola, A. Adeogun, A. Olakiigbe, T. Oyeniyi, Y. Olukosi, H. Okoh, T. Arowolo, Joel Akila, A. Oduola, C. Amajoh   +9 more
semanticscholar   +1 more source

Developmental expression of Ap‐Vas proteins in aphids and flies reveals their evolutionary roles in insects

Insect Molecular Biology, EarlyView.
Duplication of vas genes is universally observed in aphids, and phylogenetic analysis indicates that this event predates the divergence of Aphididae and Phylloxeridae. Ap‐vas1 is germline‐specific, whereas Ap‐vas2–4 exhibit somatic expression, indicating functional divergence during aphid embryogenesis.
Gee‐Way Lin, Szu‐Chieh Wang, Charles E. Cook, Ming‐Der Lin, Chun‐che Chang   +4 more
wiley   +1 more source

Dramatic decreases of malaria transmission intensities in Ifakara, south-eastern Tanzania since early 2000s

Malaria Journal, 2018
Background Ongoing epidemiological transitions across Africa are particularly evident in fast-growing towns, such as Ifakara in the Kilombero valley, south-eastern Tanzania.
Marceline F. Finda, Alex J. Limwagu, Halfan S. Ngowo, Nancy S. Matowo, Johnson K. Swai, Emmanuel Kaindoa, Fredros O. Okumu   +6 more
doaj   +1 more source

Variations in household microclimate affect outdoor-biting behaviour of malaria vectors [PDF]

, 2017
Background: Mosquito behaviours including the degree to which they bite inside houses or outside is a crucial determinant of human exposure to malaria.
Ferguson, Heather M., Kaindoa, Emmanuel Wilson, Matthiopoulos, Jason, Ngowo, Halfan Said, Okumu, Fredros Oketch   +4 more
core   +2 more sources

Preimaginal development of Aedes aegypti L. (Diptera: Culicidae) in brackish water gives rise to adult mosquitoes with thicker cuticles and greater insecticide resistance

Medical and Veterinary Entomology, EarlyView.
The principal arboviral vector Aedes aegypti can develop in coastal brackish water field habitats (0.5–15 g/L salt) with larvae possessing thicker cuticles and greater resistance to the larvicide Temephos. Females emerging from brackish water‐developing preimaginal stages are now shown to have thicker and remodelled leg and abdominal cuticles and ...
Kokila Sivabalakrishnan, Andrew Hemphill, S. H. P. Parakrama Karunaratne, Arunasalam Naguleswaran, Isabel Roditi, Sinnathamby N. Surendran, Ranjan Ramasamy   +6 more
wiley   +1 more source

Malaria Vectors Tend to Avoid the Indoor-Based Vector Control Tools in Wonji Sugar Estate, Oromia, Ethiopia

Environmental Health Insights
Background: There is a paucity of data regarding resting habits and comparison of the physiological states of Anopheles mosquito populations from indoor and outdoor collection venues in Ethiopia. Therefore, this study aims to investigate resting behavior
Kidane Lelisa, Lemu Golassa, Yitbarek Woldehawariat, Sisay Dugassa   +3 more
doaj   +1 more source

Malaria transmission, insecticide resistance and efficacy of insecticide-treated nets in Belabo and Ouami, two localities of the East Region of Cameroon

Current Research in Parasitology and Vector-Borne Diseases
The East Region of Cameroon has over 150 malaria cases per 1000 inhabitants per year. Factors contributing to this high malaria prevalence are not well understood.
Paulette Ndjeunia-Mbiakop, Idriss Nasser Ngangue-Siewe, Abdou Talipouo, Arnold Princewil Chi Nji, Roland Bamou, Joel Djoufounna, Jeannette Tombi, Christophe Antonio-Nkondjio   +7 more
doaj   +1 more source

First detection of the malaria vector Anopheles arabiensis in Côte d’Ivoire: urbanization in question

Malaria Journal, 2022
Background Previous studies have revealed high malaria transmission in Bouaké, Côte d’Ivoire. The sociopolitical crisis in the country and the resulting environmental changes have raised the need to update existing knowledge on mosquito vector species ...
Florence Fournet, Akre M. Adja, Kouassi A. Adou, Milossé M. C. Dahoui, Baba Coulibaly, Konan F. Assouho, Dounin D. Zoh, Moussa Koné, Aboubacar Koné, Koffi L. Niamien, Sylvie Cornelie, Emmanuel Tia, Nicolas Moiroux   +12 more
doaj   +1 more source

Characterizing pyrethroid resistance and mechanisms in Anopheles gambiae (s.s.) and Anopheles arabiensis from 11 districts in Uganda

Current Research in Parasitology and Vector-Borne Diseases, 2023
Insecticide resistance threatens recent progress on malaria control in Africa. To characterize pyrethroid resistance in Uganda, Anopheles gambiae (s.s.) and Anopheles arabiensis were analyzed from 11 sites with varied vector control strategies.
Henry Ddumba Mawejje, David Weetman, Adrienne Epstein, Amy Lynd, Jimmy Opigo, Catherine Maiteki-Sebuguzi, Jo Lines, Moses R. Kamya, Philip J. Rosenthal, Martin J. Donnelly, Grant Dorsey, Sarah G. Staedke   +11 more
doaj   +1 more source

Achieving high coverage of larval-stage mosquito surveillance: challenges for a community-based mosquito control programme in urban Dar es Salaam, Tanzania [PDF]

, 2009
Background: Preventing malaria by controlling mosquitoes in their larval stages requires regular sensitive monitoring of vector populations and intervention coverage.
Chaki, PP, Fillinger, U, Govella, NJ, Hemed, A, Killeen, GF, Shoo, B, Tanner, M   +6 more
core