Does the eb virus cause infectious mononucleosis?

Yes: It is also the cause of several types of unusual malignancies, usually in people with some form of immune compromise.

Yes: The epstein barr virus (ebv) causes mononucleosis. After infection, it stays in the body for life. If the infection occurs in early childhood, the illness will be similar to the common cold. Most people have been infected by the ebv virus by the time they reach adulthood.