title: Congenital rubella after maternal reinfection.
abstract: This report concerns a boy with congenital rubella virus infection. The diagnosis was confirmed by virus isolation, demonstration of rubella-specific serum IgM and by persistence of serum antibody at the age of 9 months. In 2 sera from the mother sampled 2 weeks apart 20 months before the birth of the boy, low titers of rubella antibody were demonstrated by hemagglutination-inhibition, hemolysis-in-gel and complement fixation tests, but not by neutralization. Significant rises in titer were demonstrable by all serologic reactions--including neutralization--at the time of birth of the infected child. The mother was not aware of any rubella-like illness or exposure to such disease during pregnancy. The case is discussed against findings of neutralizing activity in sera from natural immunes and rubella vaccinees.
mesh_terms: D000328:Adult; D000914:Antibodies, Viral / Q000032:analysis; D005260:Female; D006801:Humans; D007075:Immunoglobulin M; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000276:immunology; D008297:Male; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000276:immunology; D012409:Rubella / Q000151:congenital* / Q000276:immunology / Q000382:microbiology; D012698:Serologic Tests
chemical_list: D000914:Antibodies, Viral; D007075:Immunoglobulin M