Prevalence of hepatitis E virus antibodies in individuals exposed to swine in Mato Grosso, Brazil

Silva, Sabrina Monteiro Tosoncin da; Oliveira, J. M.; Vitral, Cláudia Lamarca; Vieira, Karina de Almeida; Pinto, Marcelo Alves; Souto, Francisco José Dutra

doi:10.1590/s0074-02762012000300007

Cited by 27 publications

(25 citation statements)

References 23 publications

(22 reference statements)

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“…The prevalence of anti-HEV IgG (3.4%; 95% CI, 2.0-5.7) found in this study was lower than those observed in other rural populations in Brazil, such as agricultural settlers in the Amazon Region (12.9%; 95% CI, 9.5-16.2) 4 and rural workers who handled swine in Mato Grosso (8.4%; 95% CI, 5.7-12.2) 3 . Meanwhile, residents in rural areas in Rio de Janeiro (Sumidouro) had a similar seroprevalence (2.1%; 95% CI, 0.5-6.4) 7 .…”

contrasting

confidence: 83%

“…Therefore, both sporadic cases and epidemic outbreaks have been commonly related to poor hygiene and sanitary conditions 2 . Some studies have shown that rural populations have a high HEV prevalence 3,4 . An association between this infection and living in a rural area was also reported 5 .…”

mentioning

confidence: 99%

“…However, these areas have adverse conditions for life and health, such as inadequate disposal of waste, inadequate access to drinkable water, and overcrowding at home, favoring the emergence of diseases transmitted by the fecal-oral route. Besides, very little is known about the seroepidemiology of HEV infection in rural residents in Brazil 3,7 , with just one study conducted on agricultural settlers in the Amazon Region 4 . Until recently, only HEV genotype 3 (zoonotic) has been reported in Brazil 8,9 .…”

mentioning

confidence: 99%

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Hepatitis E seroprevalence and associated factors in rural settlers in Central Brazil

Freitas

Teles

Caetano

et al. 2017

Rev. Soc. Bras. Med. Trop.

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Introduction: Prevalence of hepatitis E virus (HEV) infection and associated factors were investigated in rural settlements in Central Brazil. Methods: A total of 464 settlers were interviewed, and serum samples were tested for anti-HEV IgG/IgM. Positive samples were tested for HEV RNA. Results: Sixteen participants (3.4%; 95% CI 2.0-5.7) were positive for anti-HEV IgG. None was positive for anti-HEV IgM. HEV RNA was not detected. Dwelling in a rural settlement for >5 years was associated with HEV seropositivity. Conclusions: The results revealed the absence of acute infection and a low prevalence of previous exposure to HEV.

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confidence: 83%

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confidence: 99%

mentioning

confidence: 99%

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Hepatitis E seroprevalence and associated factors in rural settlers in Central Brazil

Freitas

Teles

Caetano

et al. 2017

Rev. Soc. Bras. Med. Trop.

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“…In blood donors the seroprevalence was 2.3 and 11.8% in two different studies (Trinta et al 2001;Bortolierio et al 2006). Da Silva et al (2012) have recently reported a seroprevalence of 8.4% in individuals exposed to swine in Matto Grosso, which did not characterise this type of exposure as a risk factor for HEV infection in this region.…”

Section: Seroprevalence In Humans and Pigsmentioning

confidence: 88%

Molecular Epidemiology of Hepatitis E Virus (Hev) in South America: Current Status

Mirazo¹,

Ramos²,

Arbiza³

2012

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Hepatitis E virus (HEV) is a common causative agent of acute hepatitis in many developing countries where standards of sanitation and hygiene are poor. HEV is transmitted primarily by the fecal-oral route. However, zoonotic trasmission from animal reservoirs to human by consumption of raw or undercooked meat has also been suggested. In endemic areas, HEV infection occurs as large waterborne epidemics and/or small outbreaks. Sporadic cases of HEV infection have also been reported in developed countries, where its occurrence is not always associated with travel to highly endemic areas. HEV mammalian isolates are classifi ed into four genotypes 1-4, which appear to have a specifi c host range and geographical distribution. The epidemiology of HEV in South America seems to be complex and seroprevalence in human and domestic pigs diff ers both among populations within the same countries and between countries. Additionally, HEV strains have been detected and molecularly characterized and genotype 3 is the most frequently genotype found in the region. Moreover, except for two strains isolated from autochthonous cases of acute hepatitis that occurred in Venezuela and belonged to genotype 1, all sequences detected in South America were classifi ed as within genotype 3. Our understanding of HEV epidemiology has undergone major changes in recent years and despite the fact that several attempts to shed light over the epidemiology of this infection have been carried out in South America, data about the molecular characterization of HEV isolates is still lacking and further investigation is needed. This review summarizes the current status of HEV molecular epidemiology from a regional point of view.

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“…Los trabajadores de granjas porcinas constituyen una población de riesgo, como lo han señalado, entre otros, da Silva, et al (75). El único estudio publicado en Colombia en este sentido, se refiere a la detección de anticuerpos IgG anti-HEV en trabajadores de fincas porcinas en el Valle de Aburrá, departamento de Antioquia.…”

Section: Discussionunclassified

Infección por el virus de la hepatitis E en pacientes con diagnóstico clínico de hepatitis viral en Colombia

et al. 2014

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Prevalence of hepatitis E virus antibodies in individuals exposed to swine in Mato Grosso, Brazil

Abstract: This study was conducted to estimate the prevalence of hepatitis E antibodies (anti-HEV)

Cited by 27 publications

References 23 publications

Hepatitis E seroprevalence and associated factors in rural settlers in Central Brazil

Hepatitis E seroprevalence and associated factors in rural settlers in Central Brazil

Molecular Epidemiology of Hepatitis E Virus (Hev) in South America: Current Status

Infección por el virus de la hepatitis E en pacientes con diagnóstico clínico de hepatitis viral en Colombia

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