Information on bionomics of species composition, seasonal dynamics and insecticide susceptibility status is important to understand malaria transmission in any particular eco-epidemiological setting and for the design of effective vector control strategies. Here, adult mosquitoes were collected using CDC light traps (CDC LTs) and human landing catches (HLC) for 17 months between June 2018 and September 2020 from Lare District of Ethiopia. Larvae and pupae of anopheline mosquitoes were collected from breeding sites of Lare District and Jimma and reared to adulthood. Bioassays were conducted on non-blood-fed, 3-5-day-old emerged adult female mosquitoes using WHO insecticide-impregnated papers. spp. infection in and were identified using TaqMan qPCR. Of 11,048 mosquitoes collected, was the most common (46.20%, = 5103), followed by (27.89%, = 3082), () (16.04%, = 1772) and (9.88%, = 1091). Most of the mosquitoes (73.17%, = 8084) were collected using CDC LTs and 26.83% ( = 2964) were captured using HLC. The mean density of , and was generally higher in June-November as compared to other months during the study period. However, the mean density of was relatively higher through November-January following the peak malaria period in Lare. , (.) and complex were susceptible to pirimiphos-methyl, propoxur and bendiocarb. However, and () were resistant to DDT, deltamethrin, permethrin and malathion, whilst members of the complex were resistant to DDT and deltamethrin. No spp. infection was detected from samples of and . There was temporal variation in mean density of mosquitoes and higher mean mosquito density was recorded during June-November (except for ). The higher outdoor mean mosquito density coupled with multiple insecticide resistance of malaria vector populations and occurrence of in the dry season call for regular monitoring and intervention considering the behavioural dynamics of species across seasons.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11609322 | PMC |
http://dx.doi.org/10.1016/j.crpvbd.2024.100224 | DOI Listing |
Malar J
January 2025
Swiss Tropical and Public Health Institute, Kreuzstrasse 2, 4123, Allschwil, Switzerland.
Background: Members of the Anopheles gambiae complex are major malaria vectors in sub-Saharan Africa. Their larval stages inhabit a variety of aquatic habitats in which, under natural circumstances, they are preyed upon by different taxa of aquatic macroinvertebrate predators. Understanding the potential impact of predators on malaria vector larval population dynamics is important for enabling integrated local mosquito control programmes with a stronger emphasis on biocontrol approaches.
View Article and Find Full Text PDFJ Am Mosq Control Assoc
January 2025
Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia.
With their diverse species, mosquitoes are known to transmit the causal agents of diseases such as malaria, dengue, and yellow fever. Their high adaptability, attraction to humans, and variable adult behaviors make them a significant health concern. The focus on Aedes aegypti is significant for reducing vector-human contacts, monitoring insecticide resistance, and developing innovative vector management strategies.
View Article and Find Full Text PDFJ Am Mosq Control Assoc
January 2025
Epidemiology Department, School of Public Health, University of São Paulo, São Paulo, Brazil.
has wild habits with ecological plasticity in anthropized environments. We report the occurrence of this species in several types of artificial containers in 2 fragments of the Atlantic Forest in the city of São Paulo, Brazil. A total of 1,428 larvae were collected, in which plastic containers had the highest abundance of immature forms of Li.
View Article and Find Full Text PDFGerms
September 2024
MD, MPH, PhD, Department of Public Health, Faculty of Medicine, Universitas Islam Indonesia, Kaliurang Street KM 14.5 Yogyakarta 55584, Indonesia.
Introduction: Dengue infection poses a serious threat to global public health, including Indonesia. The rapid spread and significant economic impact are crucial concerns for control efforts. Investigating risk factors of dengue virus infection is necessary to formulate effective strategies, particularly at the household level.
View Article and Find Full Text PDFPLoS Negl Trop Dis
January 2025
Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea.
The number of reported malaria cases transmitted by Anopheles mosquitoes in the Republic of Korea (ROK) increased from 420 in 2022 to 746 in 2023, a 77.6% increase. Eight Anopheles species are currently reported in the ROK, including six species belonging to the Anopheles Hyrcanus Group and one species each belonging to the Barbirostris Group and Lindesayi Group.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!