Infectious mononucleosis (mono) is often called the kissing disease. If you have mononucleosis, it's important to be careful of certain complications such as an enlarged spleen. The most common cause of mononucleosis is the Epstein-Barr virus, but other viruses can also cause.
It occurs less commonly in adults over the age of 30. Older adults with mono will usually have a fever but may not have other symptoms.
How much do you know about mononucleosis? Get the facts on.
Mononucleosis, otherwise known as mono, glandular fever, or the “kissing Why symptoms affect teens and young adults more severely.
Mononucleosis is not considered a serious illness, but its symptoms may be among teenagers, especially those 15 to 17 years old, and in adults in their 20s.