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  1. Mononucleosis - Symptoms & causes - Mayo Clinic

    Nov 30, 2022 · Infectious mononucleosis (mono) is often called the kissing disease. The virus that causes mono (Epstein-Barr virus) is spread through saliva. You can get it through kissing, but …

  2. Mononucleosis (Mono or the Kissing Disease) - Cleveland Clinic

    Jan 9, 2024 · Mononucleosis (mono) is a contagious infection caused by a herpes virus called Epstein-Barr. Other viruses can also cause mono. The infection is common among teenagers …

  3. Infectious mononucleosis - Wikipedia

    Infectious mononucleosis (IM, mono), also known as glandular fever, is an infection usually caused by the Epstein–Barr virus (EBV). [2][3] Most people are infected by the virus as …

  4. About Infectious Mononucleosis (Mono) | EBV and Mono | CDC

    May 9, 2024 · Learn about mono symptoms, how it's spread, and how to prevent it.

  5. What Are the Stages of Mono and How Long Do They Last?

    Sep 29, 2025 · Mono has three stages: a period before symptoms start, an active phase, and a recovery period. Learn what to expect and how long they last.

  6. Mononucleosis (Kissing Disease): Symptoms, Causes,

    Apr 30, 2024 · Mononucleosis is an infectious illness that’s usually caused by the Epstein-Barr virus (EBV). It’s also called mono or "the kissing disease." It's commonly spread through …

  7. What Is Mono? Signs, Symptoms and Treatments | U.S. News

    Jul 31, 2025 · What Is Mono? Mono, or infectious mononucleosis, is a contagious illness most commonly caused by the Epstein-Barr virus, a member of the herpes virus family.

  8. Infectious Mononucleosis - Johns Hopkins Medicine

    What causes mono? Infectious mononucleosis is caused by the Epstein-Barr virus (EBV). A milder form is caused by the cytomegalovirus (CMV). Both EBV and CMV are members of the …

  9. Infectious Mononucleosis - Boston Children's Hospital

    Infectious mononucleosis, or mono, is a viral illness common in teens and young adults. Learn more from Boston Children’s Hospital.

  10. What is mono? Causes, symptoms and recovery | Providence

    Sep 22, 2025 · Learn about mononucleosis (mono): how it spreads, symptoms to watch for, treatment options and recovery timeline.