00646naa a2200205 a 450000100080000000500110000800800410001910000250006024501230008526000090020865300280021765300250024565300260027065300100029665300100030670000180031670000150033470000210034977300700037010303192004-04-12       2004    bl uuuu     u00u1 u    #d1 aCIACCI-ZANELLA, J.R.  aLack of evidence of porcine reproductive and respiratory syndrome virus (PRRSV) infection in domestic swine in Brazil.  c2004  aLevantamento sorologico  aSindrome reprodutivo  aSindrome respiratorio  aSuino  aVirus1 aTROMBETTA, C.1 aVARGAS, I.1 aCOSTA, D.E.M.da.  tCiencia Rural, Santa Mariagv.34, n.2, p.449-455, mar./abr. 2004.