Infectious mononucleosis is caused by the Epstein-Barr virus (EBV) and is commonly known as “mono.” This virus is highly contagious and can be spread through contact with infected saliva, such as when kissing or sharing drinks. Symptoms of mono can include fever, sore throat, swollen lymph nodes, fatigue, and a rash.
There is no specific cure for mono, but symptoms usually improve within 2 to 4 weeks. However, some people may experience fatigue for several months after the initial infection. There is no vaccine to prevent mono.