A ten years (2007–2016) retrospective serological survey for Seneca Valley virus infection in major pig producing states of Brazil

Seneca Valley virus (SVV) is the etiological agent of vesicular disease in pigs, clinically indistinguishable of classical viral vesicular infections, including foot-and-mouth disease. The first outbreaks of SVV infection in Brazil were reported in 2014. However, it was not known whether the virus w...

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Veröffentlicht in:Veterinary research communications 2017-12, Vol.41 (4), p.317-321
Hauptverfasser: Saporiti, Viviane, Fritzen, Juliana T. T., Feronato, Cesar, Leme, Raquel A., Lobato, Zelia I. P., Alfieri, Alice F., Alfieri, Amauri A.
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container_end_page 321
container_issue 4
container_start_page 317
container_title Veterinary research communications
container_volume 41
creator Saporiti, Viviane
Fritzen, Juliana T. T.
Feronato, Cesar
Leme, Raquel A.
Lobato, Zelia I. P.
Alfieri, Alice F.
Alfieri, Amauri A.
description Seneca Valley virus (SVV) is the etiological agent of vesicular disease in pigs, clinically indistinguishable of classical viral vesicular infections, including foot-and-mouth disease. The first outbreaks of SVV infection in Brazil were reported in 2014. However, it was not known whether the virus was circulating in Brazilian pig herds before this year. This study is a retrospective serological investigation of porcine health status to SVV in Brazil. Serum samples ( n  = 594) were grouped in before (2007–2013, n  = 347) and after (2014–2016, n  = 247) SVV outbreaks in Brazil. Twenty-three pig herds were analyzed, of which 19 and 4 were sampled before and after the beginning of SVV outbreaks, respectively. Two herds sampled after 2014 presented animals with SVV-associated clinical manifestations, while the other two housed asymptomatic pigs. Anti-SVV antibodies were evaluated by virus neutralization test. The results demonstrated that pig herds of different Brazilian geographical regions and distinct pig categories were negative to anti-SVV antibodies in sera obtained before 2014. Antibodies to SVV were detected only in serum samples obtained after 2014, particularly in herds with the presence of pigs with SVV-clinical signs. These results present robust serological evidence that the SVV was not present in the major Brazilian pig producing regions prior to 2014.
doi_str_mv 10.1007/s11259-017-9697-6
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subjects Antibodies
Biomedical and Life Sciences
Foot & mouth disease
Hogs
Immunoglobulins
Infections
Life Sciences
Neutralization
Outbreaks
Short Communication
Swine
Valleys
Veterinary Medicine/Veterinary Science
Viruses
Zoology
title A ten years (2007–2016) retrospective serological survey for Seneca Valley virus infection in major pig producing states of Brazil
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