Assessment of control and epidemiologic details of the schistosomiasis mansoni in Bananal, São Paulo, Brazil

Teles, Horacio Manuel Santana; Ferreira, Cláudio Santos; Carvalho, Maria Esther de

doi:10.1590/1809-4503201400020018eng

Cited by 5 publications

(7 citation statements)

References 14 publications

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“…According to local informants in the present study, there is a constant risk of schistosomiasis from contact with the river water, as confirmed by the high rates of contamination documented in the records available for the town of São Lourenço da Mata [35]. The establishment of endemic diseases, such as schistosomiasis, is related to a complex of biological, social, political, and cultural factors, which are expressed in the living conditions of the local population [36]. This reinforces the need for basic sanitation, not only for the recuperation of the environment, but also to guarantee public health.…”

Section: Discussionmentioning

confidence: 73%

Integrated approach to the understanding of the degradation of an urban river: local perceptions, environmental parameters and geoprocessing

Collier

Neto

Aretakis

et al. 2015

J Ethnobiology Ethnomedicine

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BackgroundThe use of interdisciplinary approaches such as the proposed report provides a broad understanding of the relationship between people and the environment, revealing reliable aspects not previously considered in the study of this relationship. This study compiled evidence on the environmental degradation of an urbanized river over the past few decades, providing a diagnosis of the consequences of this process for the river, its ichthyofauna, and the local human population.MethodsThe study was focused on the Beira Rio community on the Capibaribe River in the municipality of São Lourenço da Mata, Pernambuco, Brazil. Data were collected using geoprocessing and ethnobiological approaches, as well as environmental parameters. This research was conducted with the most experienced long-term residents in the local community, through interviews and participatory methodologies to recovering information about the river environment, its ichthyofauna and its environmental services for the last decades.ResultsAccording to the GIS analysis, the study area was subject to an accelerated process of urbanization, with the total urban area increasing from 73 565, 98 m2 in 1974 to 383 363, 6 m2 in 2005. The informants perceived the urban growth, especially in the late twentieth century, being this period recognized as the phase of greatest negative changes in the river environment. The perceived decline of fish stocks was indicated by the community as one of the effects of river degradation. According to the interviews, the deterioration of the river affected the ecosystem services and the relationship of the adjacent human community with this ecosystem. The environmental data indicated that the river is suffering eutrophization and has fecal coliform concentrations 160 times higher than the maximum level permitted by Brazilian legislation.ConclusionsThe interdisciplinary approach used in this research allowed the understanding of the degradation process of an urban river and some negative effects through the integration of environmental data, GIS and the local knowledge, revealing the complementarity of obtained data and the effectiveness of implementation of this approach.

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Section: Discussionmentioning

confidence: 73%

Integrated approach to the understanding of the degradation of an urban river: local perceptions, environmental parameters and geoprocessing

Collier

Neto

Aretakis

et al. 2015

J Ethnobiology Ethnomedicine

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“…Brazil is the country with the largest diversity of plants in the world, with approximately 55,000 plant species cataloged from an estimated total of between 350,000 and 550,000 species worldwide (Teles, Ferreira, & Carvalho, 2014). The properties of these medicinal plants are directly related to their essential oils (EOs), which are a complex mixture of various active substances, including terpenes, which are formed by isoprelene units and phenylpropane derivatives (Ascenção & Mouchrek Filho, 2013).…”

Section: Introductionmentioning

confidence: 99%

Essential oils of the leaves of Syzygium cumini (L.) Skeels and fruit peels of Hymenaea courbaril (L.) var. courbaril as molluscides against Biomphalaria glabrata

Everton

Júnior

Sales

et al. 2020

RSD

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This study evaluated the molluscicidal activity of essential oils (EOs) of Syzygium cumini L. and Hymenaea courbaril L. Hydrodistillation was used to extract the EOs. The chemical characterization was performed by Gas Chromatography coupled to mass spectrometry. The bioassay of Artemia salina Leach was used for the toxicity test. The molluscicidal assay tested concentrations of 10-80 mg L-1 of the EOs against Biomphalaria glabrata. The major constituent of The EO of S. cumini was isokaryophyllene and H. courbaril the Germacreno-D. The toxicity assay classified The EOs as nontoxic with LC50 412.10 mg L-1 for S. cumini and LC50 354.80 mg L-1 for H. courbaril. The molluscicidal assay purchased LC50 44.76/ LC90 77.20 for S. cumini and LC50 37.34 mg L-1/ LC90 73.24 mg L-1 for H. courbaril. The results showed that both EOs can be used as natural molluscicides in combating the snail Biomphalaria glabrata.

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“…Studies in areas with low endemicity of schistosomiasis, such as the state of SP, are rare. The studies by Anaruma Filho et al 21 and Teles et al 22 show an exception, relating to Bananal and Campinas, respectively, regions where it was possible to rate schistosomiasis transmission sites, map parasite foci, and identify those where intense surveillance and control would be required.…”

Section: Introductionmentioning

confidence: 99%

Schistosomiasis in the Middle Paranapanema river region, state of São Paulo, Brazil: Does it matter today for public health?

Palasio

Bortoleto

Rosa-Xavier

et al. 2019

Rev. Soc. Bras. Med. Trop.

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Introduction: The Middle Paranapanema watershed is known for the transmission of schistosomiasis, and there have been autochthonous cases since 1952. This study aimed to describe this disease in space and time and evaluate its current importance as a public health problem. Methods: Thematic maps showing the risk areas for transmission of schistosomiasis, using scan statistics, and flow maps were created in the period 1978-2016. Incidence was calculated, and the existence of spatial dependence between autochthonous and imported cases was evaluated using Ripley's K12-function. Species of snails were identified in high-risk clusters. Results: A total of 1,511 autochthonous cases were reported in eight of the 25 municipalities in the study area, of which 92.8% occurred in Ourinhos. A total of 2,189 imported cases were reported (27% in Ourinhos and 20% in Assis), mainly originating in the states of Paraná and Minas Gerais. Clusters of autochthonous and imported cases with higher risk were identified in Ourinhos, Assis and Ipaussu. However, over the years, the cases began to occur in low density in Ourinhos and no longer in other municipalities in the region. The cluster detected in the period 2007-2016 in Ourinhos still has risk for the transmission of schistosomiasis. K12-function analysis indicated positive spatial dependence between autochthonous and imported cases. Conclusions: The study showed that, currently, schistosomiasis as a public health problem in Middle Paranapanema is restricted to Ourinhos. This fact may be related to the presence of Biomphalaria glabrata at a specific point and low coverage of basic sanitation.

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Assessment of control and epidemiologic details of the schistosomiasis mansoni in Bananal, São Paulo, Brazil

Cited by 5 publications

References 14 publications

Integrated approach to the understanding of the degradation of an urban river: local perceptions, environmental parameters and geoprocessing

Integrated approach to the understanding of the degradation of an urban river: local perceptions, environmental parameters and geoprocessing

Essential oils of the leaves of Syzygium cumini (L.) Skeels and fruit peels of Hymenaea courbaril (L.) var. courbaril as molluscides against Biomphalaria glabrata

Schistosomiasis in the Middle Paranapanema river region, state of São Paulo, Brazil: Does it matter today for public health?

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