What's the connection between mononucleosis and Epstein-Barr virus?

Answer From Pritish K. Tosh, M.D.

Epstein-Barr virus (EBV) is one of the most common viruses that people catch. It can cause a disease called mononucleosis, also known as mono. But when most people get EBV, they have no symptoms.

It takes more than a cough or sneeze to spread EBV. The virus spreads from person to person mainly through saliva. You can catch it from an infected person by doing things such as:

  • Kissing.
  • Sharing food and drinks.
  • Sharing cups, utensils or toothbrushes.

In the United States, at least 1 in 4 teenagers and young adults with EBV get mono. The disease can cause symptoms such as:

  • Extreme tiredness.
  • Fever.
  • Sore throat.
  • Headaches and body aches.
  • Swollen lymph nodes.
  • Swelling in the liver, spleen or both.
  • Rash.

There's no clear-cut treatment for mono. You can take steps to ease the symptoms by:

  • Drinking water or other fluids to stay hydrated.
  • Geting lots of rest.
  • Taking medicine that you can get without a prescription for pain and fever.

Some people need treatment for other health problems caused by mono. But most people with the disease get better within a month.

With

Pritish K. Tosh, M.D.

From Mayo Clinic to your inbox

Sign up for free and stay up to date on research advancements, health tips, current health topics, and expertise on managing health. Click here for an email preview.

We use the data you provide to deliver you the content you requested. To provide you with the most relevant and helpful information, we may combine your email and website data with other information we have about you. If you are a Mayo Clinic patient, we will only use your protected health information as outlined in our Notice of Privacy Practices. You may opt out of email communications at any time by clicking on the unsubscribe link in the email.

Jan. 11, 2023 See more Expert Answers