Ciências Biológicas- Licenciatura
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Navegando Ciências Biológicas- Licenciatura por Assunto "Aedes aegypti"
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Monografia Acesso fechado Avaliação da eficácia de diferentes repelentes comerciais contra Aedes albopictus e Aedes aegypti(2019) Costa, Felipe Allan da SilvaThe use of repellents as a form of individual protection is stimulated to reduce the number of interactions between hosts and vectors and consequently the spread of pathogens. This study evaluated the efficacy of different commercially used repellents against Aedes albopictus and Aedes aegypti mosquitoes. Methodology: Three commercial repellent formulations containing DEET, Icaridina and IR3535 as active principle were evaluated. The test consisted of the application of 4mg of the product on the hands of volunteers and the introduction of hands in cages containing 20 female mosquitoes each. The sting attempts were counted for 10 minutes in all tests, and the repellents were evaluated 30 minutes, 2 hours and 5 hours after application. Results: The performance of the three formulations of repellents was similar in Aedes albopictus, reaching> 98% in the repellency indexes at all times. In the tests carried out with Aedes aegypti, the DEET content presented a low performance, reaching 42% in the 5 hour test repellency index, followed by repellents containing IR3535 and Icaridina, which obtained 66% and 77.5%, respectively. Conclusions: The formulation containing Icaridina obtained 100% in the index of repellency against Aedes albopictus, while no formulation offered 100% in the index of repellency against Aedes aegypti, during the times specified in the labels. Therefore, tested repellents containing DEET, Icaridina and IR3535 as an active principle offer the potential to reduce bites and not necessarily to provide full protection, allowing consumers to use unprotected insect repellents from several arboviruses.