title: Abnormal responses to rubella infection.
abstract: Two cases of rubella are described which caused initial problems in laboratory diagnosis due to abnormal features in the immune response. One patient presented with thrombocytopenic purpura and associated circulating immune complexes. The other patient, who was in early pregnancy, had an unusually prolonged rash and a delayed humoral immune response. The possible reasons for the difficulties in serological confirmation are discussed.
mesh_terms: D000328:Adult; D000914:Antibodies, Viral / Q000032:analysis; D000936:Antigen-Antibody Complex; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy; D012409:Rubella / Q000175:diagnosis*
chemical_list: D000914:Antibodies, Viral; D000936:Antigen-Antibody Complex