<prompt> Which of the following is not true about Rubella?Caused by DNA virus of Toga familyThere is no known carrier state for postnatally acquired rubellaRubella vaccine is live attenuated with strain RA 273Risk of transmission and severity maximum in 1st trimester of pregnancy  <response>: 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:- RA273 live attenuated . 