Epidemiologic aspects of the malaria transmission cycle in an area of very low incidence in Brazil

Cerutti, Crispim; Boulos, Marcos; Coutinho, Arnídio F.; Hatab, Maria Do Carmo L.D.; Falqueto, Aloísio; Rezende, Helder Ricas; Duarte, Ana Maria Ribeiro de Castro; Collins, William E.; Malafronte, Rosely S.

doi:10.1186/1475-2875-6-33

Cited by 79 publications

(122 citation statements)

References 32 publications

(36 reference statements)

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“…Nevertheless, as we were still able to fi nd these wild species (A. cruzii / A. homunculus) in Valsugana Velha and in the mobile points, we conclude that this transformation is not complete. Interestingly, almost 80% of bromeliad-malaria cases in Espírito Santo occur in males (Cerutti et al 2007). In such a scenario, A. cruzii could be maintaining malaria transmission in human males, as women do not normally enter the forest.…”

Section: A Cruzii/a Homunculusmentioning

confidence: 99%

“…The possible effect of the coexistence of anophelines, nonhuman primates and human beings on malaria transmission in these regions is not well understood, and little is known on the real dynamics of this infection in such ecosystem , Cerutti et al 2007.…”

mentioning

confidence: 99%

“…Extra-Amazonian autochthonous malaria cases are distributed in mountainous regions and are associated with agricultural activities near the forest (Cerutti et al 2007). Cases are restricted to these areas and there is no evidence of outbreaks that could affect either the tourist or agricultural potential.…”

mentioning

confidence: 99%

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Entomological characterization and natural infection of anophelines in an area of the Atlantic Forest with autochthonous malaria cases in mountainous region of Espírito Santo State, Brazil

Rezende¹,

Soares²,

Cerutti³

et al. 2009

Neotrop. entomol.

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Section: A Cruzii/a Homunculusmentioning

confidence: 99%

mentioning

confidence: 99%

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Entomological characterization and natural infection of anophelines in an area of the Atlantic Forest with autochthonous malaria cases in mountainous region of Espírito Santo State, Brazil

Rezende¹,

Soares²,

Cerutti³

et al. 2009

Neotrop. entomol.

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“…Various suspected cases of this disease were in fact diagnosed as toxoplasmosis at the time of a study by Cerutti et al (2007) [7]. Both these morbid conditions (malaria and toxoplasmosis) are potentially preventable and require the adoption of public health measures.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Seroconversion Rate and Factors Associated with Toxoplasmosis in a Rural Area of an Extra-Amazonian Region in Brazil: A Cohort Study

Buery¹,

Fux²,

Vítor³

et al. 2014

TOTMJ

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Abstract:Background: Toxoplasmosis is caused by the intracellular protozoan Toxoplasma gondii, which has a worldwide distribution. Here, in the first study of asymptomatic infection by this protozoan in the state of Espírito Santo, Brazil, we present an analysis of the prevalence and annual incidence of asymptomatic cases of toxoplasmosis in a rural area of this state.Methods: Plasma samples from 79 individuals who had responded to questionnaires were analyzed by IgG ELISA, and positive cases were subjected to an IgG avidity test. Follow-up lasted one year and consisted of quarterly visits.Results: Of the 79 individuals assessed, 67.1% were positive for IgG anti-Toxoplasma gondii, and the incidence was 6.2 per 100 person-years of observation. No statistically significant association was found between toxoplasmosis and contact with cats or between toxoplasmosis and consumption of pork, mutton or lamb, even if these were undercooked or raw. According to the multivariate analysis, the only risk factor related to infection appears to be increasing age (OR = 1.086). Confirming the data in the literature, the statistical analysis showed that with every additional year of age the risk of contracting toxoplasmosis increase by 8.6%. Conclusion:The inhabitants of rural communities in the mountainous region of Espírito Santo are very exposed to Toxoplasma gondii and know very little about the disease, making them vulnerable to exposure.

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“…Anophelinae mosquitoes are important vectors of Plasmodium that can cause malaria in humans 2,6 . Additionally, Anopheles species may be involved in the dynamics of transmission of microfilariae 1 and arboviruses 22 .…”

Section: Introductionmentioning

confidence: 99%

Brazilian mosquito (Diptera: Culicidae) fauna: I. Anopheles species from Porto Velho, Rondônia state, western Amazon, Brazil

Morais

Urbinatti

Sallum

et al. 2012

Rev. Inst. Med. trop. S. Paulo

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This study contributes to knowledge of Anopheles species, including vectors of Plasmodium from the western Brazilian Amazon in Porto Velho, Rondônia State. The sampling area has undergone substantial environmental changes as a consequence of agricultural and hydroelectric projects, which have caused intensive deforestation and favored habitats for some mosquito species. The purpose of this study was to diagnose the occurrence of anopheline species from collections in three locations along an electric-power transmission line. Each locality was sampled three times from 2010 to 2011. The principal adult mosquitoes captured in Shannon trap were Anopheles darlingi, An. triannulatus, An. nuneztovari l.s., An.gilesi and An. costai. In addition, larvae were collected in ground breeding sites for Anopheles braziliensis, An. triannulatus, An. darlingi, An. deaneorum, An. marajoara, An. peryassui, An. nuneztovari l.s. and An. oswaldoi-konderi. Anopheles darlingi was the most common mosquito in the region. We discuss Culicidae systematics, fauna distribution, and aspects of malaria in altered habitats of the western Amazon.

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Epidemiologic aspects of the malaria transmission cycle in an area of very low incidence in Brazil

Abstract: Background: Extra-Amazonian autochthonous Plasmodium vivax infections have been reported in mountainous regions surrounded by the Atlantic Forest in Espírito Santo state, Brazil.

Cited by 79 publications

References 32 publications

Entomological characterization and natural infection of anophelines in an area of the Atlantic Forest with autochthonous malaria cases in mountainous region of Espírito Santo State, Brazil

Entomological characterization and natural infection of anophelines in an area of the Atlantic Forest with autochthonous malaria cases in mountainous region of Espírito Santo State, Brazil

Analysis of Seroconversion Rate and Factors Associated with Toxoplasmosis in a Rural Area of an Extra-Amazonian Region in Brazil: A Cohort Study

Brazilian mosquito (Diptera: Culicidae) fauna: I. Anopheles species from Porto Velho, Rondônia state, western Amazon, Brazil

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