Last year, at age 19, Devyn Carr was diagnosed with mononucleosis, a viral illness caused by the common virus Epstein-Barr. While most patients get over mononucleosis, nicknamed 'mono' or ...

Can a person have mononucleosis more than once? Will monospot or heterophile antibody tests stay positive for life? — David Cooper, PA-C, Fayetteville, Pa. Mononucleosis is caused by Epstein ...