What Are Symptoms of Mononucleosis and How To Prevent It?


Signs and symptoms of mononucleosis may include:

  • Fatigue
  • Sore throat, probably with a strep throat that doesn’t get better with antibiotic use
  • Fever
  • Swollen lymph nodes in your neck and armpits
  • Swollen tonsils
  • Headache
  • Skin rash
  • Soft, swollen spleen

Young children usually get recovered in a shorter period than adults. Signs and symptoms such as a fever and sore throat usually lessen within a couple of weeks, but fatigue, enlarged lymph nodes and a swollen spleen may last for a few weeks longer.


Since mononucleosis is spread through saliva, avoid kissing others and sharing food, dishes, glasses and utensils until several days after your fever has subsided and even longer to prevent spreading the virus. The Epstein-Barr virus may persist in your saliva for months after the infection. However, no vaccine exists to prevent mononucleosis.

* The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.