If you have had mono at any point in life, do you also have epstein-barr virus? is mono only caused by epstein barr? have had mono twice

Infectious mono: True infectious mononucleosis (called glandular fever in UK) is caused only by EBV. Once infected, EBV, remains in the body for life, and sometimes can reactivate and cause disease, especially in presence of severe immune impairment (e.g., advanced cancer, chemotherapy). Other viruses, especially cytomegalovirus (CMV) can cause mono-like illness, sometimes called "heterophile negative" mono.