CircoviridaeCircoviridae InfectionsTorque teno virusCircovirusGenome, ViralRNA VirusesVaccinia virusReceptors, VirusVirus ReplicationVirus CultivationVirus SheddingVirus DiseasesSimian virus 40Virus AssemblyPlant VirusesDNA VirusesDefective VirusesSindbis VirusMeasles virusInfluenza A Virus, H1N1 SubtypeRabies virusInfluenza A Virus, H5N1 Subtype