This is a viral disease that is capable of spreading from one person to another. It is most common in the lives of children especially babies. It is also referred to as rubeolla or rubella in Germany. Others call it mobilli. It infects the respiratory system. When one gets into contact with fluids such as saliva from an infected person, then you will also get infected. This is very dangerous when it comes to viral diseases since they spread very rapidly and cause deaths.