The Epstein-Barr virus is technically known as human herpesvirus 4 (HHV-4). It is a member of the herpes family and is a very common virus. Most humans are infected with it as some point in their lives. For the vast majority of people it has very little effect and the human immune system handles it just fine. Infection during adolescence can produce mononucleosis.
Because the Epstein-Barr virus is a type of virus, it has the properties and characteristics of viruses in general. This means that it is immotile, or unable to move on its own, because virtually all viruses are immotile. It has to depend on a host body for both movement within a host and from one host to another.