This is very rare. Rubella is also called the German measles. It isn't usually serious except to unborn babies. It causes slight fever, a rash and swelling of the glands in the neck. It usually lasts about 3 days.
Rubella can also cause brain swelling or a problem with bleeding.
These events are rare. The main risk of rubella is to unborn babies. If a pregnant woman catches rubella, it can cause her to lose her baby or have a baby who is blind or deaf, or has trouble learning. The most common side effects of the measles vaccine are a rash or fever that starts 1 or 2 weeks after getting the vaccine and lasts a few days. The rubella vaccine may cause some swelling of the glands in the neck and may also cause some aching of the joints, which can occur 1 to 3 weeks after vaccination.