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      Avaliação do uso de repelentes contra picada de mosquitos em militares na Bacia Amazônica Translated title: Evaluation of the use of repellent against mosquito bite by military personnel in the Amazon Basin

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          Abstract

          FUNDAMENTOS: No Brasil, doenças provocadas por picadas de insetos são frequentes, o que torna extremamente importante a execução de medidas profiláticas de forma adequada, sobretudo, em áreas endêmicas como a Amazônia, que recebe um grande contingente de visitantes, a trabalho ou turismo. OBJETIVOS: Avaliar o uso dos repelentes de insetos disponíveis no mercado por militares que costumam realizar missões em ambiente de selva, na região amazônica. MÉTODOS: Foram selecionados cinquenta e um militares da região amazônica que responderam um questionário em junho/2008. RESULTADOS: 63,7% dos militares usaram produtos contendo Deet na concentração máxima de apenas 15%, que possui mínima ação de repelência; 36% relataram usar protetor solar associado, o que levou a um risco maior de intoxicação; 36,4% fizeram uso de um repelente natural em suas missões; dois militares usaram vitamina B e consideraram a sua ação de repelência ineficaz. CONCLUSÕES: Os repelentes à base de Deet utilizados pelo grupo estudado apresentam concentrações inferiores às consideradas seguras para uso em ambiente de selva. Foi frequente a associação do Deet com protetor solar, que é uma combinação potencialmente tóxica. Os repelentes naturais à base de andiroba e copaíba apresentaram o maior grau de percepção de proteção.

          Translated abstract

          BACKGROUND: In Brazil, diseases caused by insect bites are frequent. Therefore, it is extremely important that prophylatic measures are adequately carried out, especially in endemic areas such as the Amazon which receives a great number of visitors, for both business and tourism purposes.. OBJECTIVES: To evaluate the use of insect repellents available in the market by military personnel who often go in missions in the middle of the jungle, in the Amazon region. METHODOLOGY: Fifty - one militaries in the Amazon region were selected and they answered a questionnaire in June/2008. RESULTS: 63,7% of the militaries used products that contained Deet in the maximun concentration of only 15% that has minimum repellent action; 36% reported to combine these products with sun protective products which increased the risk of intoxication; 36,4% used a natural repellent during their missions; two of the militaries participants used vitamin B and considered their repellent action ineffective. CONCLUSION: The repellents that contain Deet and which were used by the group present concentrations that are lower than the concentrations considered safe for using in the jungle. It was frequent the combination of Deet with sun protective products ,which is a potentially toxic association. Natural repellents that have "andiroba" and" copaíba" as components presented a higher perception of protection from the participants.

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          Most cited references32

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          Insect repellents: historical perspectives and new developments.

          Arthropod bites remain a major cause of patient morbidity. These bites can cause local or systemic effects that may be infectious or inflammatory in nature. Arthropods, notably insects and arachnids, are vectors of potentially serious ailments including malaria, West Nile virus, dengue, and Lyme disease. Measures to curtail the impact of insect bites are important in the worldwide public health effort to safely protect patients and prevent the spread of disease. The history of insect repellent (IR) lends insight into some of the current scientific strategies behind newer products. Active ingredients of currently available IRs include N,N-diethyl-3-methylbenzamide (DEET), botanicals, citronella, and, the newest agent, picaridin. Currently, the Environmental Protection Agency's registered IR ingredients approved for application to the skin include DEET, picaridin, MGK-326, MGK-264, IR3535, oil of citronella, and oil of lemon eucalyptus. DEET has reigned as the most efficacious and broadly used IR for the last 6 decades, with a strong safety record and excellent protection against ticks, mosquitoes, and other arthropods. Newer agents, like picaridin and natural products such as oil of lemon eucalyptus are becoming increasingly popular because of their low toxicity, comparable efficacy, and customer approval. Various characteristics and individual product advantages may lead physicians to recommend one agent over another.
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            Mosquitoes and mosquito repellents: a clinician's guide.

            This paper is intended to provide the clinician with the detailed and scientific information needed to advise patients who seek safe and effective ways of preventing mosquito bites. For this review, clinical and analytical data were selected from peer-reviewed research studies and review articles, case reports, entomology texts and journals, and government and industry publications. Relevant information was identified through a search of the MEDLINE database, the World Wide Web, the Mosquito-L electronic mailing list, and the Extension Toxicology Network database; selected U.S. Army, U.S. Environmental Protection Agency, and U.S. Department of Agriculture publications were also reviewed. N,N-diethyl-3-methylbenzamide (DEET) is the most effective, and best studied, insect repellent currently on the market. This substance has a remarkable safety profile after 40 years of worldwide use, but toxic reactions can occur (usually when the product is misused). When DEET-based repellents are applied in combination with permethrin-treated clothing, protection against bites of nearly 100% can be achieved. Plant-based repellents are generally less effective than DEET-based products. Ultrasonic devices, outdoor bug "zappers," and bat houses are not effective against mosquitoes. Highly sensitive persons may want to take oral antihistamines to minimize cutaneous reactions to mosquito bites.
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              Lactic acid-sensitive receptors on the antennae of the mosquito,Aedes aegypti

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                Author and article information

                Journal
                abd
                Anais Brasileiros de Dermatologia
                An. Bras. Dermatol.
                Sociedade Brasileira de Dermatologia (Rio de Janeiro, RJ, Brazil )
                0365-0596
                1806-4841
                February 2010
                : 85
                : 1
                : 33-38
                Affiliations
                [02] Amazonas AM orgnameForça Aérea Brasileira orgdiv1Comando Aéreo Regional orgdiv2setor de Dermatologia VII Comar Brasil
                [01] Amazonas AM orgnameUniversidade Federal do Amazonas orgdiv1residência médica em Dermatologia Brasil
                Article
                S0365-05962010000100004 S0365-0596(10)08500104
                10.1590/S0365-05962010000100004
                1cbab63d-49be-46fa-8460-155ff54b2190

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 21 May 2009
                : 27 November 2009
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 30, Pages: 6
                Product

                SciELO Brazil

                Categories
                Investigação

                Deet,Insect repellents,Mordeduras e picadas de insetos,Repelentes de insetos,DEET,Insect bites and stings

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