Some people usually assume that measles and rubella are the same, but actually, they are not the same. If you translated the name of measles, it would be rubeola, which is still not the same as rubella. Rubella is considered to be German measles, which is considered to be a minor form of measles. The main difference between the two is the virus that causes the disease.
The virus of Rubella is not as strong or infectious as measles. In fact, having measles can be problematic because it can affect a lot of people that a person may come in contact with. Take note that both diseases can be deadly when they are contracted by pregnant women.