title: Occurrence of influenza antibodies in Addis Ababa.
mesh_terms: D000328:Adult; D000914:Antibodies, Viral / Q000032:analysis*; D005002:Ethiopia; D005260:Female; D006801:Humans; D009980:Influenza A virus / Q000276:immunology; D009981:Influenza B virus / Q000276:immunology; D007251:Influenza, Human / Q000276:immunology*; D008297:Male; D008875:Middle Aged
chemical_list: D000914:Antibodies, Viral