AllergensSkin TestsHistamineHistamine ReleaseImmune SystemReceptors, Histamine H1Receptors, Histamine H2Receptors, HistamineHistamine AntagonistsHistamine AgonistsTuberculin TestSkinHistamine H1 AntagonistsReceptors, Histamine H3Immunoglobulin EIntradermal TestsHypersensitivityAntigens, PlantHypersensitivity, ImmediateHistamine H2 AntagonistsMitesAntigens, DermatophagoidesHistamine N-MethyltransferasePollenFood HypersensitivityDesensitization, ImmunologicHypersensitivity, DelayedLatent TuberculosisPyrilamineAsthmaCockroachesPyroglyphidaeSkin DiseasesArthropod ProteinsRadioallergosorbent TestAnaphylaxisRhinitis, Allergic, SeasonalTuberculosisImmunity, InnateSkin AgingSkin NeoplasmsBasophilsMethylhistaminesRespiratory HypersensitivityImmune ToleranceT-LymphocytesHistidine DecarboxylaseBronchial Provocation TestsImmunity, CellularDimapritDustHistamine H3 AntagonistsInterferon-gammaCytokinesHistamine AgentsMice, Inbred BALB CInterferon-gamma Release TestsTuberculinRhinitis, Allergic, PerennialBetulaMast CellsCimetidineBCG VaccineGuinea PigsUrticariaLymphocyte ActivationDrug HypersensitivityChlorpheniramineMice, Inbred C57BLImmunoglobulin GEnzyme-Linked Immunosorbent AssayImmune System DiseasesBronchial HyperreactivityBasophil Degranulation TestMycobacterium tuberculosisImmunityOvalbuminStreptodornase and StreptokinaseCells, CulturedAntigensImmunologic TestsMetiamideDermatophagoides pteronyssinusSkin Physiological PhenomenaDiphenhydramineAntigens, BacterialTuberculosis, PulmonaryAntibody FormationDendritic Cellsp-Methoxy-N-methylphenethylaminePhleumAdaptive ImmunityMolecular Sequence DataImmunizationLungSpleenNasal Provocation TestsAnti-Allergic AgentsTh2 CellsTime Factors