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A cross-sectional study to estimate the frequency of anti-bovine viral diarrhea virus-1 antibodies in domestic pigs of Mossoró region in the state of Rio Grande do Norte, Brazil Ciência Rural
Gatto,Igor Renan Honorato; Arruda,Andreia Gonçalves; Almeida,Henrique Meiroz de Souza; Silva,Glaucenyra Cecília Pinheiro da; Leite,Alexandro Iris; Samara,Samir Issa; Dutra,Iveraldo dos Santos; Ogata,Renato Akio; Oliveira,Luis Guilherme de.
ABSTRACT: This study investigated the occurrence of antibodies for BVDV-1 in swine herds located in the region of Mossoró city of the state of Rio Grande do Norte, Brazil. A sample size of 412 animals was estimated assuming unknown prevalence (set at 50%). Virus neutralization assay was used to the detect the presence of antibodies for BVDV-1 and the results found were analysed using multivariable logistic regression model. The obtained prevalence was 4% at animal level and 45% at the animal and herd level. The titers were highly variable between animals and within farms. The multivariable logistic regression analysis showed an association between being housed outside and exposure to BVDV-1 (OR=0.24, 95% CI:0.06, 0.96, P=0.04). Highly correlated data and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Swine; Pestiviruses; Virusneutralization; BVDV; CSFV.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000901607
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Anti-influenza A virus antibodies in Tayassuidae from commercial rearing farms in Brazil Ciência Rural
Baraldi,Thaís Gasparini; Almeida,Henrique Meiroz de Souza; Morais,Amanda Bonalume Cordeiro de; Storino,Gabriel Yuri; Montassier,Hélio José; Motta,Rodrigo Garcia; Ribeiro,Márcio Garcia; Oliveira,Luís Guilherme de.
ABSTRACT: Family Tayassuidae in the suborder Suina include two species of peccaries in Brazil: the white-lipped peccary (Tayassu pecari) and the collared peccary (Pecari tajacu). These animals share common pathogens with domestic swine (Sus scrofa); however, their role as potential carrier remains unclear. This study focused on detecting the prevalence of influenza A antibodies in Tayassu pecari and Pecari tajacu from commercial rearing farms from two states in Brazil. A set of 50 blood samples from Pecari tajacu and 55 from Tayassu pecari were analyzed using a commercial indirect ELISA in order to investigate anti influenza A antibodies. Pecari tajacu samples presented 22% (11/50) of seropositivity for the virus. Serological surveillance is an important...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Influenza; Antibodies; Peccaries.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000400451
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