title: Past and present in the diagnosis of trachoma and chlamydial ocular disease. Specific serum IgA antibodies in the diagnosis of active viral and chlamydial infections.
mesh_terms: D000907:Antibodies, Bacterial / Q000032:analysis*; D002690:Chlamydia Infections / Q000097:blood*; D005128:Eye Diseases / Q000097:blood*; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis*; D014141:Trachoma / Q000097:blood*
chemical_list: D000907:Antibodies, Bacterial; D007070:Immunoglobulin A