Retrospective serological study on hepatitis E infection in pigs from 1985 to 1997 in Spain

Maribel Casas; Joan Pujols; Rosa Rosell; Nilsa de Deus; Bibiana Peralta; Sonia Pina; Jordi Casal; Marga Martín

doi:10.1016/j.vetmic.2008.09.075

Retrospective serological study on hepatitis E infection in pigs from 1985 to 1997 in Spain

Maribel Casas, Joan Pujols, Rosa Rosell, Nilsa de Deus, Bibiana Peralta, Sonia Pina, Jordi Casal, Marga Martín

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The objective of the present work was to ascertain the date in which hepatitis E virus (HEV) was introduced in the Spanish pig population. For this, a serological retrospective study was carried out using archived sera. A total of 2871 serum samples gathered between 1985 and 1997 and collected in 208 farms of Spain were tested for anti-HEV IgG by an in-house ELISA. Of the 2871 sera analyzed by ELISA, 1390 were positive for anti-HEV antibodies (48.4%, 95% CI: 46.9-49.9%) and that corresponded to 204/208 farms (98%, 95% CI: 96.1-99.9%) having at least one positive pig. Our results show that HEV was present and widespread in Spanish swine farms at least since 1985. Any significant changes in prevalence were detected from 1 year to another and therefore, HEV infection in swine should be considered endemic in Spain. © 2008 Elsevier B.V. All rights reserved.

Idioma original	Anglès
Pàgines (de-a)	248-252
Revista	Veterinary Microbiology
Volum	135
DOIs	https://doi.org/10.1016/j.vetmic.2008.09.075
Estat de la publicació	Publicada - 30 de març 2009

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10.1016/j.vetmic.2008.09.075

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title = "Retrospective serological study on hepatitis E infection in pigs from 1985 to 1997 in Spain",

abstract = "The objective of the present work was to ascertain the date in which hepatitis E virus (HEV) was introduced in the Spanish pig population. For this, a serological retrospective study was carried out using archived sera. A total of 2871 serum samples gathered between 1985 and 1997 and collected in 208 farms of Spain were tested for anti-HEV IgG by an in-house ELISA. Of the 2871 sera analyzed by ELISA, 1390 were positive for anti-HEV antibodies (48.4%, 95% CI: 46.9-49.9%) and that corresponded to 204/208 farms (98%, 95% CI: 96.1-99.9%) having at least one positive pig. Our results show that HEV was present and widespread in Spanish swine farms at least since 1985. Any significant changes in prevalence were detected from 1 year to another and therefore, HEV infection in swine should be considered endemic in Spain. {\textcopyright} 2008 Elsevier B.V. All rights reserved.",

keywords = "Dot-blot, ELISA, Epidemiology, HEV, Swine",

author = "Maribel Casas and Joan Pujols and Rosa Rosell and {de Deus}, Nilsa and Bibiana Peralta and Sonia Pina and Jordi Casal and Marga Mart{\'i}n",

year = "2009",

month = mar,

day = "30",

doi = "10.1016/j.vetmic.2008.09.075",

language = "English",

volume = "135",

pages = "248--252",

journal = "Veterinary Microbiology",

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publisher = "Elsevier",

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TY - JOUR

T1 - Retrospective serological study on hepatitis E infection in pigs from 1985 to 1997 in Spain

AU - Casas, Maribel

AU - Pujols, Joan

AU - Rosell, Rosa

AU - de Deus, Nilsa

AU - Peralta, Bibiana

AU - Pina, Sonia

AU - Casal, Jordi

AU - Martín, Marga

PY - 2009/3/30

Y1 - 2009/3/30

N2 - The objective of the present work was to ascertain the date in which hepatitis E virus (HEV) was introduced in the Spanish pig population. For this, a serological retrospective study was carried out using archived sera. A total of 2871 serum samples gathered between 1985 and 1997 and collected in 208 farms of Spain were tested for anti-HEV IgG by an in-house ELISA. Of the 2871 sera analyzed by ELISA, 1390 were positive for anti-HEV antibodies (48.4%, 95% CI: 46.9-49.9%) and that corresponded to 204/208 farms (98%, 95% CI: 96.1-99.9%) having at least one positive pig. Our results show that HEV was present and widespread in Spanish swine farms at least since 1985. Any significant changes in prevalence were detected from 1 year to another and therefore, HEV infection in swine should be considered endemic in Spain. © 2008 Elsevier B.V. All rights reserved.

AB - The objective of the present work was to ascertain the date in which hepatitis E virus (HEV) was introduced in the Spanish pig population. For this, a serological retrospective study was carried out using archived sera. A total of 2871 serum samples gathered between 1985 and 1997 and collected in 208 farms of Spain were tested for anti-HEV IgG by an in-house ELISA. Of the 2871 sera analyzed by ELISA, 1390 were positive for anti-HEV antibodies (48.4%, 95% CI: 46.9-49.9%) and that corresponded to 204/208 farms (98%, 95% CI: 96.1-99.9%) having at least one positive pig. Our results show that HEV was present and widespread in Spanish swine farms at least since 1985. Any significant changes in prevalence were detected from 1 year to another and therefore, HEV infection in swine should be considered endemic in Spain. © 2008 Elsevier B.V. All rights reserved.

KW - Dot-blot

KW - ELISA

KW - Epidemiology

KW - HEV

KW - Swine

U2 - 10.1016/j.vetmic.2008.09.075

DO - 10.1016/j.vetmic.2008.09.075

M3 - Article

SN - 0378-1135

VL - 135

SP - 248

EP - 252

JO - Veterinary Microbiology

JF - Veterinary Microbiology

ER -

Retrospective serological study on hepatitis E infection in pigs from 1985 to 1997 in Spain

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