title: Persistence of viral antigen in the nasal epithelium in complicated influenza.
mesh_terms: D000328:Adult; D000368:Aged; D000941:Antigens; D004848:Epithelium / Q000276:immunology; D005260:Female; D005455:Fluorescent Antibody Technique; D006801:Humans; D007251:Influenza, Human / Q000150:complications / Q000276:immunology*; D008297:Male; D008875:Middle Aged; D009666:Nose / Q000276:immunology; D009975:Orthomyxoviridae / Q000276:immunology*; D011379:Prognosis; D013997:Time Factors
chemical_list: D000941:Antigens