What is rubella? Rubella, also called German measles, is caused by a virus that is spread from person to person when an infected person coughs or sneezes.
Most adults who get rubella usually have a mild illness, with low-grade fever, sore throat, and a rash that starts on the face and spreads to the rest of the body.
Rubella is not the same as measles (rubeola), though the two illnesses do . Some teens and adult women experience temporary joint pain or.