EpsilonretrovirusGuineaPapua New GuineaNew GuineaSwineIleumAscorbic Acid DeficiencyMuscle, SmoothSwine DiseasesTracheaEquatorial GuineaSpecies SpecificityMuscle ContractionHistamineLungHypersensitivity, DelayedDisease Models, AnimalSus scrofaDose-Response Relationship, DrugMyenteric PlexusBronchoconstrictionRabbitsPerilymphCochleaRoseolovirusTime FactorsMyocardiumPapillary MusclesAction PotentialsSkin TestsHeartAnimal FeedCalciumLiverRandom AllocationHemorrhagic Fever, AmericanImmune SeraAerosolsImmunizationWeaningPyrilamineOvalbuminElectric StimulationKineticsgamma-GlobulinsAntigensAscorbic Acid