Capillaria hepatica (Bancroft, 1893) (Nematoda) entre populações indígenas e mamíferos silvestres no noroeste do Estado do Mato Grosso, Brasil, 2000

Soares, Manoel do Carmo Pereira; Nunes, Heloisa Marceliano; Silveira, Fernando Antonio Alves da; Alves, Max Moreira; Souza, Alex Júnior Souza de

doi:10.5123/s2176-62232011000300005

Cited by 13 publications

(19 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This rate was similar to that estimated for indigenous people of the northwest of State of Mato Grosso (8.6%) [21] and of the Suruí etnia in Rondônia (5.2%), in the Brazilian Amazon [25], indicating that the Amazon region has the highest incidence of spurious infection worldwide. Other studies have reported lower rates ranging from 0.2% to 2.3% [17], [22]–[24].…”

Section: Discussionsupporting

confidence: 86%

“…In a rural community in the Brazilian Amazon a case of spurious infection was associated with the reported consumption of liver of tapir [18]. Recently, 41 cases of spurious infection and the true infection of a peccary ( T. pecari ) and a monkey ( Ateles paniscus ) were reported in an indigenous amazonian population from Brazil suggesting the potential of these animals as local reservoirs [21]. However, studies are needed to confirm the mechanisms of transmission of C. hepaticum to humans as well as provide evidence of the cycles potentiating this transmission.…”

Section: Introductionmentioning

confidence: 99%

“…Ninety-eight percent (81/82) of these cases are from indigenous tribes or rural communities of the Amazon region (from the States of Mato Grosso and Rondônia) [17]–[19], [21]–[25]. Nonetheless, no case of disease has, to date, been described in this region.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Calodium hepaticum: Household Clustering Transmission and the Finding of a Source of Human Spurious Infection in a Community of the Amazon Region

Gonçalves

Ascaso

Santos³

et al. 2012

PLoS Negl Trop Dis

View full text Add to dashboard Cite

Background: Calodium hepaticum (syn. Capillaria hepatica) is a worldwide helminth parasite of which several aspects of transmission still remain unclear. In the Amazon region, the mechanism of transmission based on the ingestion of eggs present in the liver of wild mammals has been suggested as the cause of the spurious infections described. We performed an epidemiological investigation to determine the incidence, risk of spurious infection and the dynamics of transmission of C. hepaticum in a community of the Brazilian Amazon. Methodology/Principal Findings: Stool samples of 135 individuals, two dog feces and liver tissue from a peccary (captured and eaten by the residents) were analyzed by conventional microscopy. Dog feces were collected from the gardens of households presenting human cases of spurious C. hepaticum infections. Community practices and feeding habits related to the transmission of the parasite were investigated. The individual incidence of spurious infection was 6.7% (95% CI: 2.08–11.24). Cases of spurious infection were observed in 7.5% of the families and the household incidence was from 50% to 83.3%. The risk of spurious infection was 10-fold greater in persons consuming the liver of wild mammals (p = 0.02). The liver tissue of a peccary and one feces sample of a dog presented eggs of C. hepaticum. The consumption of the infected liver was the cause of the spurious infections reported in one household. Conclusions/Significance: This is the first identification of a source of spurious infection by C. hepaticum in humans and we describe a high rate of incidence in household clusters related to game liver alimentary habits. The finding of a dog feces contaminating peridomiciliary ground suggests the risk of new infections. We conclude that the mechanism of transmission based on the ingestion of liver is important for the dynamics of transmission of C. hepaticum in the studied area.

show abstract

Section: Discussionsupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Calodium hepaticum: Household Clustering Transmission and the Finding of a Source of Human Spurious Infection in a Community of the Amazon Region

Gonçalves

Ascaso

Santos³

et al. 2012

PLoS Negl Trop Dis

View full text Add to dashboard Cite

show abstract

“…In the cases studied by Graczyk et al (1999) and Soares et al (2011), the inflammatory reaction surrounding the eggs was of mild grade.…”

Section: Resultsmentioning

confidence: 83%

Hepatic capillariasis in two captive Callithrix penicillata

Pereira

Benigno

Silva

et al. 2016

Braz. J. Vet. Res. Anim. Sci.

View full text Add to dashboard Cite

This study aimed to describe the occurrence of hepatic capillariasis in two non-human primates of the species Callithrix penicillata that were kept in captivity. Case 1 was in a young female, whose liver presented pale coloring, softening due to autolysis and several noticeably whitish areas. Case 2 was in a male of unknown age, whose liver was slightly pale and brownish. Histological analysis on the samples revealed extensive interstitial fibrosis with hemosiderotic areas. Adult nematodes of Capillaria hepatica and numerous eggs, morphologically characterized by their non-embryonic ellipsoid shape, with bipolar plugs that did not protrude from the shell, thick and birefringent, with a porous layer, thus giving a striated appearance to the eggs. Some cystic formations presented nematode eggs surrounded by numerous foreign-body giant cells. The literature consulted made little reference to reports of Capillaria hepatica in non-human primates. However, similar infections have been extensively studied in domestic rodents.Keywords: Capillariasis. Capillaria hepatica. Callithrix penicillata. Hepatopathy. ResumoO presente trabalho relata a ocorrência de dois casos de capilariose hepática em primatas não-humanos da espécie Callithrix penicilatta mantidos em cativeiro. O caso 1 era uma fêmea jovem, que exibiu fígado de cor pálida, suavizada devido a autólise e algumas áreas múltiplas visivelmente esbranquiçadas. O caso 2 foi registrado em um macho adulto, de idade desconhecida, com fígado levemente pálido e acastanhado. A análise histológica das amostras revelou extensa fibrose intersticial com áreas de hemossiderose, exemplares de Capillaria hepatica adultos e numerosos ovos morfologicamente caracterizados pela sua forma elipsóide, não-embrionárias, com tampões bipolares que se sobressaem da casca, que é espessa, birrefringente e com uma camada porosa, dando uma aparência estriada ao ovo. Algumas formações císticas continham ovos do nematóide cercados por numerosas células gigantes do tipo corpo estranho. A literatura consultada possui poucas referências acerca da presença de Capillaria hepatica em primatas não-humanos. No entanto, infecções semelhantes são bem estudadas em roedores domésticos. Palavras-chave:Capilariose. Capillaria hepatica. Callithrix penicilatta. Hepatopatia.

show abstract

“…Because bushmeat viscera are usually used to feed dogs, humans might be consequentially infected through contact with feces from infected dogs. Capillaria hepatica was found in Tayassu peccary and Ateles paniscus (Pereira- Soares et al 2011) and can be transmitted to humans if they consume the viscera of infected animals. Tripanosoma cruzi, responsible for Chagas disease, was found in porcupine (Coendou spp.…”

Section: Latin America and Caribbeanmentioning

confidence: 99%

Bushmeat and human health: Assessing the Evidence in tropical and sub-tropical forests

Vliet¹,

Moreno²,

Gómez³

et al. 2017

Ethnobio Conserv

View full text Add to dashboard Cite

The importance of bushmeat as source of food and medicine for forest peoples calls for an appropriate benefit/risk analysis in terms of human health. In this systematic review, we compiled information on the linkages between bushmeat and health, with a particular focus on the nutritional content, the zoo-therapeutic uses and the zoonotic pool of bushmeat species in tropical and sub-tropical forest regions. Despite the scarcity of data on the nutritional content of most common bushmeat species, the available studies demonstrate that bushmeat is an important source of fats, micro and macro-nutrients and has a diversity of medicinal uses. However, bushmeat may have detrimental health impacts where hunting, transportation, handling and cooking practices do not follow food safety practices. There is evidence that some bushmeat carcasses may be contaminated by toxic metals or by polycyclic aromatic hydrocarbons. Moreover, several pathogens carried by bushmeat are found to be zoonotic and potentially transmissible to humans through consumption or through exposure to body fluids and feces. We stress the need for more in-depth studies on the complex links between bushmeat and human health. The development of innovative handling, conservation and cooking practices, adapted to each socio-cultural context, should help reduce the negative impacts of bushmeat consumption on human health.

show abstract

Capillaria hepatica (Bancroft, 1893) (Nematoda) entre populações indígenas e mamíferos silvestres no noroeste do Estado do Mato Grosso, Brasil, 2000

Cited by 13 publications

References 16 publications

Calodium hepaticum: Household Clustering Transmission and the Finding of a Source of Human Spurious Infection in a Community of the Amazon Region

Calodium hepaticum: Household Clustering Transmission and the Finding of a Source of Human Spurious Infection in a Community of the Amazon Region

Hepatic capillariasis in two captive Callithrix penicillata

Bushmeat and human health: Assessing the Evidence in tropical and sub-tropical forests

Contact Info

Product

Resources

About