ListeriosisFoodborne DiseasesListeria monocytogenesMeningitis, ListeriaFood MicrobiologyListeriaCheeseFood ContaminationMeat ProductsDisease OutbreaksCucumis meloPregnancy Complications, InfectiousApium graveolensAbortion, SepticFood Service, HospitalSerotypingInfectious Disease Incubation PeriodRibotypingCitrullusElectrophoresis, Gel, Pulsed-FieldPregnancySpleen