Help me out here: what is german measles?

Rubella: Rubella is the virus causing the "german" measles, sometimes called the "three day" measles. It can cause serious problems for an unborn baby (congenital rubella syndrome) if mom contracts this virus in the first half of the pregnancy. Other than in pregnancy, severe or serious complications are uncommon with rubella.

Rubella: German measles is rubella which is prevented by the use of the MMR vaccine. Rubella is rare in developed countries. The major problem with german measles/rubella is that it can cause congenital rubella syndrome if a woman contracts it while she is pregnant. Congenital rubella syndrome is extremely rare. The affected baby may have deafness, small head, eye problems, heart problems etc.

Rubella: The medical term for german measles is rubella. It is caused by a virus.