Listeria monocytogenesGastroenteritisListeriosisListeriaTransmissible gastroenteritis virusGastroenteritis, Transmissible, of SwineFood MicrobiologyMeningitis, ListeriaHemolysin ProteinsCaliciviridae InfectionsNorovirusRotavirus InfectionsBacterial ProteinsFoodborne DiseasesVirulenceFecesCheeseRotavirusNorwalk virusPeptide Termination FactorsDisease OutbreaksBacterial ToxinsHeat-Shock ProteinsColony Count, MicrobialMeat ProductsNisinFood ContaminationFood-Processing IndustryMacrophagesSpleenMolecular Sequence DataGene Expression Regulation, BacterialSapovirus