All of the following statements about congenital rubella are true except: (A) IgG persists for more than 6 months, (B) IgM antibody present at bih, (C) Most common anomalies are hearing and hea defects, (D) Increased risk of congenital malformation if infection occur after 16 weeks.
Answer is D. The classical triad of symptoms consists of deafness , cataract and congenital hea disease . Delayed manifestations such as diabetes mellitus and renal disease have also been described . Diagnosis is by demonstrating Ig M antibodies in cord or neonatal blood or ig G after 6 months . Reference : GHAI essential paediatrics 9 th edition pg : 264