Approximately 90% of the population in the northwestern Amazonia is composed of indigenous people and their healthcare is still a challenge. The objective of this study was to determine the frequency of parasites in two indigenous ethnic groups (Baré and Baniwa) in northwestern Amazonia. Stool samples from 270 individuals (199 Baniwa and 71 Baré) were analyzed using Richie's method and the spontaneous sedimentation method. Statistical differences among the proportions of infected individuals based on gender, age, and ethnicity were determined. All individuals were infected by protozoans or helminths. The most frequent parasites in the indigenous people were Ascaris lumbricoides (73%), Entamoeba spp. (53%), and Giardia intestinalis (48%). Protozoan parasites were more common among children aged 0-12 years; however, the frequency of helminths, such as hookworms and A. lumbricoides, was higher in adults. There were no significant differences in parasite frequencies between different genders or ethnic groups. Mixed infections by two or more protozoan and/or helminth species were detected in 96% of individuals. One individual was infected by 14 species. A high frequency of intestinal parasites was found in Baré and Baniwa ethnic groups. Improvements to infrastructure and health education programs are required to reduce risk of infection by intestinal parasites. KEYWORDS: Indigenous Population, Parasitic Diseases, Stool samples, Amazon region. Parasitos intestinais em dois grupos indígenas no noroeste da Amazônia RESUMOAproximadamente 90% da população no noroeste da Amazônia é composta de grupos indígenas e o acesso deles aos serviços de saúde ainda é um desafio. O objetivo deste estudo foi determinar a frequência de parasitos em dois grupos indígenas (Baré e Baniwa) no noroeste da Amazônia. Amostras de fezes de 270 indivíduos (199 Baniwa e 71 Baré) foram analisadas pelos métodos de Richie e sedimentação espontânea. Foram determinadas diferenças estatísticas entre as proporções de indivíduos infectados com base no sexo, idade e etnia. Todos os indivíduos estavam infectados por protozoários ou helmintos. Os parasitos mais frequentes nos índios foram Ascaris lumbricoides (73%), Entamoeba spp. (53%), e Giardia intestinalis (48%). Protozoários parasitos foram mais comuns entre as crianças com idade entre 0-12 anos; no entanto, a frequência de ancilostomídeos e A. lumbricoides foi maior em adultos. Não houve diferenças significativas nas frequências de parasitos entre os diferentes sexos ou grupos étnicos. Infecções mistas por duas ou mais espécies de protozoários e/ou helmintos foram detectadas em 96% dos indivíduos. Um indivíduo estava infectado por 14 espécies. Uma alta frequência de parasitos intestinais foi encontrada em indígenas dos grupos Baré e Baniwa. Melhorias dos programas de infra-estrutura e educação em saúde são necessárias para reduzir o risco de infecção por parasitos intestinais. PALAVRAS-CHAVE: Populações indígenas, doenças parasitárias, amostras fecais, Região Amazônica.

Since a long time ago, Aedes aegypti (Diptera: Culicidae) is part of the catalog of the greatest threats to public health in the world, due to its ability to transmit important arboviruses, such as dengue, chikungunya, zika and yellow fever. Due to its high powers of dissemination and resistance, the mosquito still survives in the face of the usual methods aimed at its eradication, especially in underdeveloped countries. Goal: to develop a systematic review of the literature on the control of the A. aegypti mosquito, with an emphasis on natural products. Methodology: references were obtained through the following international databases: PubMed, SciELO, Bireme and Google Scholar. In the search, the keywords were used: A. aegypti; Control; Natural products; Arboviruses; Vector. The incorporation of references in this review followed the criteria: a) select articles with text available in full and free of charge, such as: theses, dissertations, course conclusion works, books on entomology and medicinal plants that have specificities related to the theme; a) disregard the year of publication (no time frame); c) opt for works written in the following languages: English, Spanish and Portuguese (BR). Conclusions: related to the traditionally used control methods of A. aegypti, plant extracts, such as essential oil from cloves, are a viable alternative, with proven insecticidal potential, without causing damage to the environment and human health, in addition to being economically viable. However, it is essential that new and detailed studies be carried out, so that the use of natural products is, in fact, put into practice, preferably on a large scale.