Serology and longevity of immunity against Echinococcus granulosus in sheep and llama induced by an oil‐based EG95 vaccine

An oil‐based formulation of the EG95 vaccine to protect grazing animals against infection with Echinococcus granulosus was formulated in Argentina. The efficacy of the vaccine was monitored by serology in sheep and llama (Lama glama) and was compared to the serology in sheep previously published usi...

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Main Authors: Poggio, Thelma Veronica, Jensen, Oscar, Mossello, M., Iriarte, J., Avila, Héctor Gabriel, Gertiser, María Laura, Serafino, J.J., Romero, Sandra Raquel, Echenique, Marcelo Alejandro, Dominguez, D.E., Barrios, J.R., Heath, D.
Format: Artículo
Language:Inglés
Published: 2018
Subjects:
Online Access:https://onlinelibrary.wiley.com/doi/abs/10.1111/pim.12325
http://hdl.handle.net/20.500.12123/2946
https://doi.org/10.1111/pim.12325
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author Poggio, Thelma Veronica
Jensen, Oscar
Mossello, M.
Iriarte, J.
Avila, Héctor Gabriel
Gertiser, María Laura
Serafino, J.J.
Romero, Sandra Raquel
Echenique, Marcelo Alejandro
Dominguez, D.E.
Barrios, J.R.
Heath, D.
author_browse Avila, Héctor Gabriel
Barrios, J.R.
Dominguez, D.E.
Echenique, Marcelo Alejandro
Gertiser, María Laura
Heath, D.
Iriarte, J.
Jensen, Oscar
Mossello, M.
Poggio, Thelma Veronica
Romero, Sandra Raquel
Serafino, J.J.
author_facet Poggio, Thelma Veronica
Jensen, Oscar
Mossello, M.
Iriarte, J.
Avila, Héctor Gabriel
Gertiser, María Laura
Serafino, J.J.
Romero, Sandra Raquel
Echenique, Marcelo Alejandro
Dominguez, D.E.
Barrios, J.R.
Heath, D.
author_sort Poggio, Thelma Veronica
collection INTA Digital
description An oil‐based formulation of the EG95 vaccine to protect grazing animals against infection with Echinococcus granulosus was formulated in Argentina. The efficacy of the vaccine was monitored by serology in sheep and llama (Lama glama) and was compared to the serology in sheep previously published using a QuilA‐adjuvanted vaccine. Long‐term efficacy was also tested in sheep by challenging with E. granulosus eggs of the G1 strain 4 years after the beginning of the trial. The serological results for both sheep and llama were similar to those described previously, except that there was a more rapid response after the first vaccination. A third vaccination given after 1 year resulted in a transient boost in serology that lasted for about 12 months, which was similar to results previously described. Sheep challenged after 4 years with three vaccinations presented 84·2% reduction of live cysts counts compared with control group, and after a fourth vaccination prior to challenge, this reduction was 94·7%. The oil‐based vaccine appeared to be bio‐equivalent to the QuilA vaccine.
format Artículo
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institution Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina)
language Inglés
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spelling INTA29462018-08-01T17:26:40Z Serology and longevity of immunity against Echinococcus granulosus in sheep and llama induced by an oil‐based EG95 vaccine Poggio, Thelma Veronica Jensen, Oscar Mossello, M. Iriarte, J. Avila, Héctor Gabriel Gertiser, María Laura Serafino, J.J. Romero, Sandra Raquel Echenique, Marcelo Alejandro Dominguez, D.E. Barrios, J.R. Heath, D. Ovinos Llama Echinococcus granulosus Inmunidad Vacuna Serología Sheep Llamas Immunity Vaccines Serology An oil‐based formulation of the EG95 vaccine to protect grazing animals against infection with Echinococcus granulosus was formulated in Argentina. The efficacy of the vaccine was monitored by serology in sheep and llama (Lama glama) and was compared to the serology in sheep previously published using a QuilA‐adjuvanted vaccine. Long‐term efficacy was also tested in sheep by challenging with E. granulosus eggs of the G1 strain 4 years after the beginning of the trial. The serological results for both sheep and llama were similar to those described previously, except that there was a more rapid response after the first vaccination. A third vaccination given after 1 year resulted in a transient boost in serology that lasted for about 12 months, which was similar to results previously described. Sheep challenged after 4 years with three vaccinations presented 84·2% reduction of live cysts counts compared with control group, and after a fourth vaccination prior to challenge, this reduction was 94·7%. The oil‐based vaccine appeared to be bio‐equivalent to the QuilA vaccine. EEA Abra Pampa Fil: Poggio, Thelma Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Ciencia y Tecnología. Centro de Virologia Animal; Argentina Fil: Jensen, Oscar. Centro de Investigacion en Zoonosis; Argentina Fil: Mossello, M.. Gobierno de la Provincia de Chubut. Ministerio de Salud. Departamento Zooantroponosis; Argentina Fil: Iriarte, J. Gobierno de la Provincia de Chubut. Ministerio de Salud. Departamento Zooantroponosis; Argentina Fil: Avila, Héctor Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones en Microbiología y Parasitología Médica. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones en Microbiología y Parasitología Médica; Argentina Fil: Gertiser, María Laura. Centro de Investigacion en Zoonosis; Argentina Fil: Serafino, J.J. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Ciencia y Tecnología. Centro de Virologia Animal; Argentina Fil: Romero, Sandra Raquel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; Argentina Fil: Echenique, Marcelo Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; Argentina Fil: Dominguez, D. E.. Gobierno de la Provincia de Chubut. Ministerio de Desarrollo Territorial y Sectores Productivos. Subsecretaría de Ganadería y Agricultura. Dirección de Sanidad Animal; Argentina Fil: Barrios, J.R.. Servicio Nacional de Sanidad Animal (SENASA).cDirección de Sanidad Animal. Oficina Local Puerto Madryn; Argentina Fil: Heath, D.. AgResearch; Nueva Zelanda 2018-08-01T17:24:07Z 2018-08-01T17:24:07Z 2016-08 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://onlinelibrary.wiley.com/doi/abs/10.1111/pim.12325 http://hdl.handle.net/20.500.12123/2946 0141-9838 1365-3024 https://doi.org/10.1111/pim.12325 eng info:eu-repo/semantics/restrictedAccess application/pdf Parasite Immunology 38 (8) : 496-502 (August 2016)
spellingShingle Ovinos
Llama
Echinococcus granulosus
Inmunidad
Vacuna
Serología
Sheep
Llamas
Immunity
Vaccines
Serology
Poggio, Thelma Veronica
Jensen, Oscar
Mossello, M.
Iriarte, J.
Avila, Héctor Gabriel
Gertiser, María Laura
Serafino, J.J.
Romero, Sandra Raquel
Echenique, Marcelo Alejandro
Dominguez, D.E.
Barrios, J.R.
Heath, D.
Serology and longevity of immunity against Echinococcus granulosus in sheep and llama induced by an oil‐based EG95 vaccine
title Serology and longevity of immunity against Echinococcus granulosus in sheep and llama induced by an oil‐based EG95 vaccine
title_full Serology and longevity of immunity against Echinococcus granulosus in sheep and llama induced by an oil‐based EG95 vaccine
title_fullStr Serology and longevity of immunity against Echinococcus granulosus in sheep and llama induced by an oil‐based EG95 vaccine
title_full_unstemmed Serology and longevity of immunity against Echinococcus granulosus in sheep and llama induced by an oil‐based EG95 vaccine
title_short Serology and longevity of immunity against Echinococcus granulosus in sheep and llama induced by an oil‐based EG95 vaccine
title_sort serology and longevity of immunity against echinococcus granulosus in sheep and llama induced by an oil based eg95 vaccine
topic Ovinos
Llama
Echinococcus granulosus
Inmunidad
Vacuna
Serología
Sheep
Llamas
Immunity
Vaccines
Serology
url https://onlinelibrary.wiley.com/doi/abs/10.1111/pim.12325
http://hdl.handle.net/20.500.12123/2946
https://doi.org/10.1111/pim.12325
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