Does rubella have lifelong symptoms or can it kill you?

If you are a fetus!: Adults and children contracting rubella generally are mildly symptomatic with a viral syndrome that may also have a rash, however pregnant women can have profound infections of their fetus(es) that may lead to pregnancy loss, permanent cardiac, neurologic, ear/eye problems and poor fetal growth.

Think mild: If you are a developing fetus and share your mothers first time exposure/infection,it is deadly.If you don't die/abort,it can leave you blind/deaf/with organ and brain damage at birth. If you are a toddler through adulthood,think mild problem. The lifelong issue with rubella would be from fetal exposure/disease.