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Naturally Co‐Infected Boars with both Porcine Reproductive and Respiratory Syndrome Virus and Porcine Circovirus Type 2
Author(s) -
BurgaraEstrella A.,
MontalvoCorral M.,
Bolaños A.,
RamírezMendoza H.,
Valenzuela O.,
Hernández J.
Publication year - 2012
Publication title -
transboundary and emerging diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.392
H-Index - 63
eISSN - 1865-1682
pISSN - 1865-1674
DOI - 10.1111/j.1865-1682.2012.01313.x
Subject(s) - porcine reproductive and respiratory syndrome virus , porcine circovirus , semen , biology , virology , virus , circovirus , antibody , arterivirus , immunology , medicine , genetics , covid-19 , disease , infectious disease (medical specialty)
Summary In this study, the humoral response against porcine reproductive and respiratory syndrome virus (PRRSV) and porcine circovirus type 2 (PCV2), the presence of the virus in semen and serum and the genetic characteristics of the virus detected in 15 boars from a commercial farm were analysed. The results showed that 53% of the boars presented anti‐PRRSV antibodies and 100% presented anti‐PCV2 antibodies. Porcine reproductive and respiratory syndrome virus was detected in 43% of the boars and 73% were positive to PCV2. The complete ORF5 gene of PRRSV of 14 samples and a fragment of the ORF2 gene of PCV2 of 22 samples were sequenced. Porcine reproductive and respiratory syndrome virus analysis revealed <92% identity in viruses from semen and serum of two boars, whereas in the rest of the boars the identity was >97.5%. As for PCV2, two boars presented an identity <95% in serum and semen and the rest had an identity >96%. The results showed that PRRSV‐ and PCV2‐naturally infected boars can be found, and at least two different strains of viruses from semen and serum can be detected.