title: [Studies on the level of antibodies against parainfluenza type 3 virus].
mesh_terms: D000293:Adolescent; D000328:Adult; D000906:Antibodies / Q000097:blood*; D002648:Child; D002675:Child, Preschool; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007223:Infant; D008875:Middle Aged; D009976:Orthomyxoviridae Infections / Q000276:immunology*; D018184:Paramyxoviridae Infections / Q000276:immunology; D012141:Respiratory Tract Infections / Q000276:immunology; D018108:Respirovirus / Q000276:immunology*
chemical_list: D000906:Antibodies
vernacular_title: Badania poziomu przeciwciał wobec wirusa parainfluenzy typu 3.