Is mono common

Mononucleosis, often referred to as "mono," is relatively common, particularly among teenagers and young adults. It is primarily caused by the Epstein-Barr virus (EBV) and is spread through saliva, making it easy to contract in social settings. While many people may be infected with EBV in childhood without developing symptoms, mono typically presents with noticeable symptoms like fatigue, sore throat, and swollen lymph nodes in older adolescents and adults. Overall, while not every person will experience mono, its prevalence in certain age groups is significant.