![]() Weekly ovitrap surveys were conducted during the study for four times. Methods: For the study of coloured ovitraps baited with grass infusion, 24 households were randomly selected in a locality and five ovitraps/premises were installed. Size, colour, material, paddle and use of oviposition attractant have been reported as important factors influencing the efficacy of ovitraps. Ovitraps are being employed as a sensitive method for detecting the presence of Ae. ![]() 9, article id 272Īnopheles, Malaria vector, Gravid trap, Electrocuting net, Semi-field, Field study National Categoryīiological Sciences Identifiers URN: urn:nbn:se:kth:diva-188061 DOI: 10.1186/s1307-7 ISI: 000375833400001 PubMedID: 27165292 Scopus ID: 2-s2.0-84969217104 OAI: oai:DiVA.Background & objectives: In the absence of any commercially available dengue vaccine or antiviral therapy, controlling the primary mosquito vector, Aedes aegypti, is currently the only means to prevent dengue outbreaks. Place, publisher, year, edition, pages2016. Further field testing is needed in different eco-epidemiological settings to provide recommendations for its use. Whilst the e-nets are difficult to handle and might therefore only be useful as a research device, the OviART gravid trap presents a promising new surveillance tool. Conclusion: Both OviART gravid trap and squares of e-nets collected wild gravid Anopheles gambiae (s.l.) where natural habitats were within 200-400 m of the trap. gambiae senso lato (s.l.) collected by the Box gravid trap. The OviART gravid trap collections were comparable to those from the e-nets and 3.3 (95 % CI 1.5-7.0) times higher than the number of An. than the Box gravid trap (RR 3.3 95 % CI 1.4-7.6). The square of e-nets performed better than the other devices, collecting three times more gravid Anopheles spp. Results: The OviART gravid trap prototype's catch size was doubled by increasing the pond size but a stronger fan did not improve the catch. Finally, the trapping efficacy of the OviART gravid trap and the square of e-nets were compared with a Box gravid trap during the long rainy season in three household clusters in western Kenya. ![]() Six sampling tools targeting gravid females (Box gravid trap, detergent-treated ponds, e-nets insect glue-treated ponds, sticky boards and sticky floating-acetate sheets) were compared under field conditions to evaluate their relative catching performance and to select a method for comparison with the OviART gravid trap. Methods: Prior to field testing, two modifications to the prototype OviART gravid trap were evaluated by (i) increasing the surface area and volume of water in the artificial pond which forms part of the trap, and (ii) increasing the strength of the suction fan. This study was designed to evaluate the efficacy of these traps for sampling malaria vectors under field conditions. The OviART gravid trap and squares of electrocuting nets (e-nets) were recently developed under semi-field conditions for collecting oviposition site seeking Anopheles gambiae (sensu stricto) (s.s.). ![]() 9, article id 272 Article in journal (Refereed) Published Resource typeText Abstract īackground: New sampling tools are needed for collecting exophilic malaria mosquitoes in sub-Saharan Africa to monitor the impact of vector control interventions. ![]()
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