title: [Systematic serological surveys and multiple viral antigens].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000956:Antigens, Viral / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D003141:Communicable Diseases / Q000453:epidemiology*; D003168:Complement Fixation Tests; D006801:Humans; D007223:Infant; D008875:Middle Aged; D013030:Spain; D014777:Virus Diseases / Q000453:epidemiology*
chemical_list: D000956:Antigens, Viral
vernacular_title: Encuestas serológicas sistemáticas frente a multiples antígenos virales.