Reduction of foot-and-mouth disease virus transmission in cattle vaccinated one or two weeks before challenge using a commercial polyvalent vaccine

Immediate vaccination of the most susceptible and epidemiological relevant animals is a crucial part of control measures that facilitate virus elimination in case of entry of foot-and-mouth disease (FMD). The objective of this study was to evaluate the effect of cattle vaccination 7 and 14 days prio...

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Autores principales: Duffy, Sergio, Fondevila, Norberto Antonio, Galdo Novo, Sabrina, Aznar, Maria Natalia, Garro, Carlos Javier, Smitsaart, Eliana, Monti, Gustavo
Formato: info:ar-repo/semantics/artículo
Lenguaje:Inglés
Publicado: Elsevier 2020
Materias:
Acceso en línea:http://hdl.handle.net/20.500.12123/7675
https://www.sciencedirect.com/science/article/pii/S2590136220300103
https://doi.org/10.1016/j.jvacx.2020.100063
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author Duffy, Sergio
Fondevila, Norberto Antonio
Galdo Novo, Sabrina
Aznar, Maria Natalia
Garro, Carlos Javier
Smitsaart, Eliana
Monti, Gustavo
author_browse Aznar, Maria Natalia
Duffy, Sergio
Fondevila, Norberto Antonio
Galdo Novo, Sabrina
Garro, Carlos Javier
Monti, Gustavo
Smitsaart, Eliana
author_facet Duffy, Sergio
Fondevila, Norberto Antonio
Galdo Novo, Sabrina
Aznar, Maria Natalia
Garro, Carlos Javier
Smitsaart, Eliana
Monti, Gustavo
author_sort Duffy, Sergio
collection INTA Digital
description Immediate vaccination of the most susceptible and epidemiological relevant animals is a crucial part of control measures that facilitate virus elimination in case of entry of foot-and-mouth disease (FMD). The objective of this study was to evaluate the effect of cattle vaccination 7 and 14 days prior challenge using a vaccine commonly applied in systematic vaccination campaigns against transmission of FMD virus (FMDV). Transmission of FMDV was investigated in three groups of ten cattle each: one non-vaccinated group and two groups that were either vaccinated 7 days (−7/vaccinated group) or 14 days (−14/vaccinated group) before intranasal (IN) inoculation. Five cattle heads from each group were inoculated using the IN-route with the A/Argentina/2001 FMDV strain, while the remaining five cattle heads of each group were contact-exposed to inoculated cattle. Clinical signs were recorded; virus isolation and genome detection by RT-PCR were carried out on oesophageal–pharyngeal fluid (OPF) and blood. Neutralizing antibody titers and antibodies against non-structural proteins (NSP) of FMDV were also determined. Results suggest that the experimental design, virus challenge dose, and virus infectivity were appropriate and that the virus had been transmitted to naïve calves. Under the outlined experimental conditions, vaccination 7 and 14 days prior to challenge induced full clinical protection against virus inoculation. Moreover, −7/ or −14/vaccinated calves that had been contact-exposed to −7/ or −14/vaccinated IN-challenged calves, did not become infected. Consequently, no virus transmission occurred from vaccinated and subsequently infected calves to cohabitating vaccinated calves (R = 0). According to our results, early vaccination during an outbreak is effective as virus transmission can be significantly reduced using a vaccine commercially available, routinely applied in systematic vaccination campaigns.
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spelling INTA76752020-08-05T19:26:13Z Reduction of foot-and-mouth disease virus transmission in cattle vaccinated one or two weeks before challenge using a commercial polyvalent vaccine Duffy, Sergio Fondevila, Norberto Antonio Galdo Novo, Sabrina Aznar, Maria Natalia Garro, Carlos Javier Smitsaart, Eliana Monti, Gustavo Enfermedades de los Animales Fiebre Aftosa Ganado Bovino Vacunación Control de Enfermedades Animal Diseases Foot and Mouth Disease Cattle Vaccination Diseases Control Immediate vaccination of the most susceptible and epidemiological relevant animals is a crucial part of control measures that facilitate virus elimination in case of entry of foot-and-mouth disease (FMD). The objective of this study was to evaluate the effect of cattle vaccination 7 and 14 days prior challenge using a vaccine commonly applied in systematic vaccination campaigns against transmission of FMD virus (FMDV). Transmission of FMDV was investigated in three groups of ten cattle each: one non-vaccinated group and two groups that were either vaccinated 7 days (−7/vaccinated group) or 14 days (−14/vaccinated group) before intranasal (IN) inoculation. Five cattle heads from each group were inoculated using the IN-route with the A/Argentina/2001 FMDV strain, while the remaining five cattle heads of each group were contact-exposed to inoculated cattle. Clinical signs were recorded; virus isolation and genome detection by RT-PCR were carried out on oesophageal–pharyngeal fluid (OPF) and blood. Neutralizing antibody titers and antibodies against non-structural proteins (NSP) of FMDV were also determined. Results suggest that the experimental design, virus challenge dose, and virus infectivity were appropriate and that the virus had been transmitted to naïve calves. Under the outlined experimental conditions, vaccination 7 and 14 days prior to challenge induced full clinical protection against virus inoculation. Moreover, −7/ or −14/vaccinated calves that had been contact-exposed to −7/ or −14/vaccinated IN-challenged calves, did not become infected. Consequently, no virus transmission occurred from vaccinated and subsequently infected calves to cohabitating vaccinated calves (R = 0). According to our results, early vaccination during an outbreak is effective as virus transmission can be significantly reduced using a vaccine commercially available, routinely applied in systematic vaccination campaigns. Instituto de Patobiología Fil: Duffy, Sergio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina Fil: Fondevila, Norberto Antonio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Virología; Argentina Fil: Galdo Novo, Sabrina. Servicio Nacional de Sanidad y Calidad Agroalimentaria (SENASA); Argentina Fil: Aznar, Maria Natalia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina Fil: Garro, Carlos Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina Fil: Smitsaart, Eliana N. Biogénesis Bagó S.A.; Argentina Fil: Monti, Gustavo. Universidad Austral de Chile. Facultad de Ciencias Veterinarias; Chile 2020-08-05T19:21:57Z 2020-08-05T19:21:57Z 2020-08 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/7675 https://www.sciencedirect.com/science/article/pii/S2590136220300103 2590-1362 https://doi.org/10.1016/j.jvacx.2020.100063 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Elsevier Vaccine: X 5 : 100063 (August 2020)
spellingShingle Enfermedades de los Animales
Fiebre Aftosa
Ganado Bovino
Vacunación
Control de Enfermedades
Animal Diseases
Foot and Mouth Disease
Cattle
Vaccination
Diseases Control
Duffy, Sergio
Fondevila, Norberto Antonio
Galdo Novo, Sabrina
Aznar, Maria Natalia
Garro, Carlos Javier
Smitsaart, Eliana
Monti, Gustavo
Reduction of foot-and-mouth disease virus transmission in cattle vaccinated one or two weeks before challenge using a commercial polyvalent vaccine
title Reduction of foot-and-mouth disease virus transmission in cattle vaccinated one or two weeks before challenge using a commercial polyvalent vaccine
title_full Reduction of foot-and-mouth disease virus transmission in cattle vaccinated one or two weeks before challenge using a commercial polyvalent vaccine
title_fullStr Reduction of foot-and-mouth disease virus transmission in cattle vaccinated one or two weeks before challenge using a commercial polyvalent vaccine
title_full_unstemmed Reduction of foot-and-mouth disease virus transmission in cattle vaccinated one or two weeks before challenge using a commercial polyvalent vaccine
title_short Reduction of foot-and-mouth disease virus transmission in cattle vaccinated one or two weeks before challenge using a commercial polyvalent vaccine
title_sort reduction of foot and mouth disease virus transmission in cattle vaccinated one or two weeks before challenge using a commercial polyvalent vaccine
topic Enfermedades de los Animales
Fiebre Aftosa
Ganado Bovino
Vacunación
Control de Enfermedades
Animal Diseases
Foot and Mouth Disease
Cattle
Vaccination
Diseases Control
url http://hdl.handle.net/20.500.12123/7675
https://www.sciencedirect.com/science/article/pii/S2590136220300103
https://doi.org/10.1016/j.jvacx.2020.100063
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