title: Neutralizing activity in nasal secretions and serum in resistance of volunteers to parainfluenza virus type 2.
mesh_terms: D000906:Antibodies / Q000032:analysis; D006801:Humans; D007109:Immunity; D017053:Infection Control; D009093:Mucus / Q000276:immunology; D009297:Nasal Mucosa / Q000378:metabolism*; D009976:Orthomyxoviridae Infections / Q000175:diagnosis; D018184:Paramyxoviridae Infections / Q000175:diagnosis; D018108:Respirovirus / Q000276:immunology*; D014776:Virus Cultivation
chemical_list: D000906:Antibodies