Most cases of infectious mononucleosis are not serious and are easy to treat. But if the disease is not treated properly, complications can become serious.

lymphocytes and T lymphocytes are produced in the bone marrow and circulate in the blood and lymphatic tissue. These cells work together to protect the body against foreign organisms such as bacteria, viruses, and cancer cells. This article provides information about T lymphocytes, what is normal in the blood, and what happens if the number is too low or too high.

Infectious mononucleosis caused by the Epstein-Barr virus causes symptoms such as fatigue, fever, sore throat, and enlarged lymph nodes. Diagnosis is based on clinical symptoms combined with EBV serological testing. Treatment of mononucleosis is primarily supportive care and corticosteroids.