CircovirusCircoviridae InfectionsPorcine Postweaning Multisystemic Wasting SyndromeWasting SyndromeSwine DiseasesSwineParvovirus, PorcineCircoviridaePorcine respiratory and reproductive syndrome virusPorcine Reproductive and Respiratory SyndromeDNA, ViralAntibodies, ViralViral VaccinesColostrumCapsid ProteinsGenome, ViralViremiaWeaningVirus SheddingPolymerase Chain ReactionTorque teno virusDNA Virus InfectionsMolecular Sequence DataSpecific Pathogen-Free OrganismsVirus ReplicationReplication OriginOpen Reading FramesAntigens, ViralSus scrofaVirologyCoinfectionPhylogenySemenBase SequenceCell LineViral ProteinsSequence Analysis, DNADNA PrimersLymph NodesAnimals, NewbornVaccinationRecombinant ProteinsEnzyme-Linked Immunosorbent AssayGenotypeAbortion, VeterinaryAmino Acid Sequence