Serological evidence for swine hepatitis E virus infection in Australian pig herds

Chandler, Jenalle D.; Riddell, Michaela A; Li, Fan; Love, R.J.; Anderson, David A.

doi:10.1016/s0378-1135(99)00065-6

Cited by 118 publications

(100 citation statements)

References 15 publications

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“…In herds from Australia, 92% anti-HEV IgG prevalence was shown in pigs older than 28 weeks (2). Exposure of pigs to the HEV seems to occur very early as might be expected for an enteric infection in high-density farming.…”

Section: Discussionmentioning

confidence: 90%

“…HEV has been detected in pigs from several countries and anti-HEV can be shown in more than 80% of swines older than three months in some areas (6,9,20). Moreover, the detection of seropositive HEV pigs in non-endemic areas suggests that an animal reservoir for HEV may exist even in countries where human infection is virtually unknown (2,5,6,13). The swine HEV has been identified and characterized (9), showing to be antigenically and genetically closely related to the human HEV.…”

Section: Introductionmentioning

confidence: 99%

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Hepatitis E virus antibodies in swine herds of Mato Grosso state, Central Brazil

Guimarães¹,

Saddi²,

Vitral³

et al. 2005

Braz. J. Microbiol.

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There is no information about evidence of hepatitis E virus (HEV) infection in swines in Central Brazil. In order to assess if HEV circulates in swines of the State of Mato Grosso, Central Brazil, a seroprevalence study was conducted including pigs from 17 farms, corresponding to 13 counties. The animals were randomly chosen among pigs arriving to two slaughterhouses between December 2002 and February 2003. Serum samples were collected and tested for IgG antibodies against HEV (anti-HEV) by enzyme immunoassay (EIA). This EIA uses two HEV recombinant proteins as antigens, a mosaic protein (MP-II) and a protein containing region 452-617 of the ORF2 of the HEV Burma strain as coating antigens. 211 out of 260 pigs (81.2%; 95CI = 75.7%, 85.6%) were anti-HEV reactive. The seropositivity did not vary with gender or age, but ranges from 15% to 100% among the farms. Our results point out that HEV seems to circulate among pigs in Mato Grosso State, suggesting that this virus is spread over the region, as seen in other countries worldwide.

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Section: Discussionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Hepatitis E virus antibodies in swine herds of Mato Grosso state, Central Brazil

Guimarães¹,

Saddi²,

Vitral³

et al. 2005

Braz. J. Microbiol.

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show abstract

“…These findings suggested that the HEV infections were already prevailing at swine farms located in these regions. Other serological studies conducted in several countries similarly indicated a serious HEV infection status in pigs [1,3,9,25].…”

mentioning

confidence: 79%

“…It was also revealed that considerably large populations of pigs were already infected with swine HEV. Seroprevalence studies indicated that about 15-70% of pigs were infected with HEV in several countries [3,4,12,25]. The infection rate of pigs measured by detecting HEV RNA in the fecal specimens showed approximately 40% of pigs in the U.S.A. were infected by HEV [7].…”

mentioning

confidence: 99%

Determination of Fecal Shedding Rates and Genotypes of Swine Hepatitis E Virus (HEV) in Korea

Kim

et al. 2008

The Journal of Veterinary Medical Science

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ABSTRACT. Hepatitis E virus (HEV) infection induces an acute hepatitis or a subclinical disease in humans. It is known that HEV is a zoonotic agent and pigs are major reservoirs of HEV. This study was conducted to determine the fecal shedding rates of HEV in various age groups of pigs and identify the genotypes of swine HEV prevailing in Korea. A total of 565 fecal samples were collected from suckling piglets, post-weaning pigs, growing pigs, and sows at 12 swine farms. RT-PCR was used to detect the presence of swine HEV in the feces. Every swine farm examined in this study had HEV-infected pigs. The fecal shedding rates of the swine HEV at individual farms were in the range of 2.1-35.4%. The overall fecal shedding rate of HEV in individual pigs was 17.5%. The HEV shedding rates of suckling piglets, post-weaning pigs, growing pigs and sows in their feces were 6.3, 16.3, 38.0 and 9.3%, respectively. When the genotypes of swine HEVs identified in this study were determined, they were all grouped into genotype 3. They were further subdivided into subtype 3a together with human and swine HEVs isolated in the U.S.A.

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“…Više od Imunohistohemijskim ispitivanjem uzoraka jetre svinja inficiranih virusom hepatitisa E ustanovljeno je da dominantnu ćelijsku populaciju u mononuklearnom ćelijskom infiltratu čine CD3+ T ćelije (Slika 18,19,20,21). CD3+ T limfociti su ustanovljeni kako u portnim prostorima jetre, isto tako među mononuklearnim ćelijama koje infiltriraju lobuluse.…”

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Immunophenotyping of mononuclear cell infiltrate in swine liver naturally infected with hepatitis E virus

Kureljušić¹

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Serological evidence for swine hepatitis E virus infection in Australian pig herds

Cited by 118 publications

References 15 publications

Hepatitis E virus antibodies in swine herds of Mato Grosso state, Central Brazil

Hepatitis E virus antibodies in swine herds of Mato Grosso state, Central Brazil

Determination of Fecal Shedding Rates and Genotypes of Swine Hepatitis E Virus (HEV) in Korea

Immunophenotyping of mononuclear cell infiltrate in swine liver naturally infected with hepatitis E virus

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