Which of the following is not true about Rubella?: (A) Caused by DNA virus of Toga family, (B) There is no known carrier state for postnatally acquired rubella, (C) Rubella vaccine is live attenuated with strain RA 27/3, (D) Risk of transmission and severity maximum in 1st trimester of pregnancy
Answer is A. Rubella is caused by RNA virus of Toga family. Source-only case. No carrier. Once infected provides life long immunity. Congenital infection :- Risk of transmission and severity is maximum in 1st trimester of pregnancy. After 5th month, therisk is negligible. Congenital rubella :- classical triad -ear defect,ocular defect,cardiac defect. Vaccination:- RA27/3 live attenuated .