Nasal MucosaRespiratory MucosaAdenoidsMucous MembraneOlfactory MucosaMucociliary ClearanceRespiratory SystemMicroscopy, Electron, ScanningBacterial AdhesionOrgan Culture TechniquesAdministration, IntranasalHaemophilus influenzaeIntestinal MucosaGastric MucosaMouth MucosaTissue Culture TechniquesCulture TechniquesColonLaryngeal MucosaDuodenumEpitheliumCells, CulturedImmunohistochemistryCartilage, ArticularIntestine, SmallMesodermRNA, MessengerIleumGastritisEpithelial CellsStomach UlcerChick Embryo