Vetores de malária em duas reservas indígenas da Amazônia Brasileira

Santos, Roseli La Corte dos; Padilha, Alexandre; Costa, Manoel Djalma Pereira; Costa, Evaldo Maia; Dantas-Filho, Herberto de Carvalho; Póvoa, Marinete Marins

doi:10.1590/s0034-89102009000500016

Cited by 24 publications

(20 citation statements)

References 21 publications

(41 reference statements)

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“…A região Norte do Brasil é considerada zona endêmica de doenças infectocontagiosas, como hanseníase, síndrome da imunodeficiência humana adquirida (AIDS), leishmaniose, malária, leptospirose, tuberculose e hepatite 7,8,9,10,11,12,13,14 . E, ainda, configura local de doenças reemergentes como cólera e febre tifoide 12,15 .…”

Section: Introductionunclassified

Meningite: Aspectos Epidemiológicos Da Doença Na Região Norte Do Brasil

Dias¹,

Rodrigues²,

Cardoso³

et al. 2017

Rev Pat Tocantins

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A região Norte do Brasil é considerada zona endêmica de diversas doenças infectocontagiosas, das quais podemos citar a meningite. A doença possui diversos fatores causais, sendo que a etiologia viral é a mais comum, porém a de origem bacteriana apresenta-se como responsável pela maior taxa de mortalidade. Entretanto, apesar da sua relevância no contexto de saúde pública na região Norte do país, poucos são os estudos publicados sobre a meningite na região. Nesse sentido, foi realizado um estudo transversal com o objetivo de traçar o perfil dos indivíduos acometidos por essa doença no Norte do Brasil entre os anos de 2012 e 2015. Os dados foram obtidos no banco de dados oficial do Sistema de Informação de Agravos de Notificação (SINAN). No período de estudo, ocorreu queda no número de casos notificados, houve predominância do sexo masculino, da faixa etária entre 0 e 19 anos e de etiologia bacteriana. Este trabalho, associado a estimativas globais, pode fornecer subsídios para ações de prevenção e controle da meningite na região Norte. Palavras-chave: Meningite; Região Norte; Brasil; Epidemiologia. ABSTRACT Northern region of Brazil is considered an endemic area of several infectious diseases, such as meningitis. The disease has several causal factors, and the viral etiology is the most common, but the bacterial origin is responsible for the highest mortality rate. However, despite its relevance in the context of public health in the northern region of the country, there are a few published studies on meningitis in the region. So, a cross-sectional study was carried out with the objective of tracing the profile of the individuals affected by this disease in Northern Brazil between the years of 2012 and 2015. Data were collected from the official database of the notification of injury information system. During the study period, there was a decrease in the number of cases reported, there was a predominance of males, ages ranging from 0 to 19 years and bacterial etiology. This work, combined with global estimates, can provide subsidies for prevention and control of meningitis in the North. Keywords: Meningitis; Northern Brazil; Epidemiology.

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“…However, only a few A. darlingi individuals infected with Plasmodium vivax and Plasmodium falciparum , according to enzyme-linked immunosorbent assay (ELISA) tests 49 are needed to maintain the malaria circulating in a population. 2 Studied parameters consisted of their breeding sites, samples distribution, incidence, feeding preferences, hour of maximum activity of adult samples seasonality, resting places, and the presence of Plasmodium species.…”

mentioning

confidence: 99%

Salivary Polytene Chromosome Map of Anopheles darlingi, the Main Vector of Neotropical Malaria

Rafael

Rohde²,

Bridi³

et al. 2010

The American Journal of Tropical Medicine and Hygiene

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Abstract. New photomap of Anopheles ( Nyssorhynchus ) darlingi Root, 1926, is described for a population from Guajará-Mirim, State of Rondonia, Brazil. The number of sections in the previous A. darlingi reference map was maintained and new subsections were added to the five chromosome arms. Breakage points of paracentric inversions had been previously incorporated into the photomap of this species. An additional inversion is reported, called 3Lc, totaling 14 inversions in the A. darlingi chromosome arms. The proposed photomap is potentially useful for further evolutionary studies in addition to physical and in silico chromosome mapping using A. darlingi genomic and transcriptome sequences. Furthermore, in our attempt to compare sections of the 2R chromosome arm of A. darlingi with Anopheles funestus , Anopheles stephensi , and Anopheles gambiae , we found great differences in the arrangement of the polytene chromosome bands, which are consistent with the known phylogenetic divergence of these species.

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“…The behavior of the vector species influences the local epidemiological pattern, and the same populations of An. darlingi may show behavioral variation in response to environmental change in addition to seasonal fluctuation, thus increasing the complexity of malaria transmission dynamics (Charlwood 1996, Voorham 2002, Santos et al 2009). Even with low An.…”

Section: Discussionmentioning

confidence: 99%

Preliminary Biological Studies on Larvae and AdultAnophelesMosquitoes (Diptera: Culicidae) in Miraflores, a Malaria Endemic Locality in Guaviare Department, Amazonian Colombia

2014

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In the malaria endemic municipality of Miraflores in southeastern Amazonian Colombia, several aspects of the biology of local Anopheles species were investigated to supplement the limited entomological surveillance information available and to provide baseline data for malaria prevention and vector control. Anopheles darlingi Root, 1926 was the most abundant species (95.6%), followed by Anopheles braziliensis (Chagas) (3.6%) and Anopheles oswaldoi s.l. (Peryassu) (0.7%). During the dry season, exophagic activity was prevalent only between 1800–2100 hours; after this (2100–0600 hours) only endophagy was encountered. In contrast, during the rainy season, both endophagy and exophagy occurred throughout the collection period. The human biting rate for An. darlingi was 8.6. This species was positive for Plasmodium vivax VK210 with a sporozoite rate = 0.13 (1/788). Breeding sites corresponded to stream (n = 7), flooded excavations (n = 4), flooded forest (n = 1), wetlands (n = 2), and an abandoned water reservoir (n = 1). An. darlingi predominated in these sites in both seasons. Based on these data, An. darlingi is the main local malaria vector, and we recommend that local prevention and control efforts focus on strengthening entomological surveillance to determine potential changes of species biting behavior and time to reduce human–vector interactions.

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“…Factors contributing to the occurrence of malaria in the State of Rondônia include environmental changes caused by human activities that favor the proliferation of Anopheles darling, malaria's main vector [20,21]. Rodrigues et al [14] studied the spatial distribution of malaria in Brazil between 1994 and 2005 and observed two significant time points in the evolution of the number of cases: the first from 1994 to 2000, in which a drastic reduction of 59.5% was observed; and the second from 2001 to 2005, in which an increase of 105.7% was observed.…”

Section: Discussionmentioning

confidence: 99%

Reduction of incidence and relapse or recrudescence cases of malaria in the western region of the Brazilian Amazon

Vieira

Gim

Zaqueo

et al. 2014

J Infect Dev Ctries

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Introduction: Malaria is one of the major parasitic diseases in the State of Rondônia, located in the western Brazilian Amazon. The basic treatment scheme for this disease is chloroquine and primaquine. This study evaluated the epidemiological profile of malaria in Rondônia between 2008 and 2012. Methodology: The epidemiological data were provided by the Health Surveillance Agency from the State of Rondônia, and socioeconomic indicators were obtained from the Brazilian Institute of Geography and Statistics, Department of Informatics of the Unified Health System, and from the National Institute for Space Research. The analyzed variables included year of diagnosis, gender, age group, main activity performed in the 15 days previous to the diagnosis, parasite species, level of parasitemia, number of relapse/recrudescence cases, and socioeconomic and environmental data for Rondônia. Results: A total of 238,626 cases of malaria were recorded in Rondônia during the study period. Of this total, 65.6% were men and the most prevalent age group was 20-39 years. Plasmodium vivax was the most common parasite (89.8%), followed by Plasmodium falciparum (9.4%). An average of 30.9% of the individuals who were tested presented with relapse/recrudescence malaria. The API value was highest in 2008 and lowest in 2012, corresponding to 42.3 cases and 19.2 cases per 1,000 inhabitants, respectively. Conclusions: A 58% reduction in the number of malaria cases and a 36.2% reduction in the number of relapse/recrudescence malaria cases were observed, due to increases in the economy, improvements in the health system, and reduction of deforestation in this region.

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“…darlingi apresentou comportamento predominantemente exofílico, com maior densidade no peridomicílio, fato este observado em outros trabalhos (SANTOS et al, 2009). An.…”

Section: Methodsunclassified

<htm>Composição da fauna de <i>Anopheles </i> (Diptera, Culicidae) da Reserva Indígena do Ocoy, foco ativo de malária no município de São Miguel do Iguaçu, Paraná (Brasil) </htm>

Araujo

Silva

Filho

et al. 2014

ABPar

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Vetores de malária em duas reservas indígenas da Amazônia Brasileira

Abstract: An. darlingi populations in the two reserves showed exophilic behavior and intense nocturnal activity. The occurrence of immature forms was little frequent and larval density was low. Vector behavioral characteristics were not favorable for the usual vector control activities.

Cited by 24 publications

References 21 publications

Meningite: Aspectos Epidemiológicos Da Doença Na Região Norte Do Brasil

Salivary Polytene Chromosome Map of Anopheles darlingi, the Main Vector of Neotropical Malaria

Preliminary Biological Studies on Larvae and AdultAnophelesMosquitoes (Diptera: Culicidae) in Miraflores, a Malaria Endemic Locality in Guaviare Department, Amazonian Colombia

Reduction of incidence and relapse or recrudescence cases of malaria in the western region of the Brazilian Amazon

<htm>Composição da fauna de <i>Anopheles </i> (Diptera, Culicidae) da Reserva Indígena do Ocoy, foco ativo de malária no município de São Miguel do Iguaçu, Paraná (Brasil) </htm>

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