Mononucleosis
Mononucleosis is a contagious disease that’s usually caused by the Epstein-Barr virus (EBV). It’s also known as mono or “the kissing disease.” People get the virus through kissing as well as things like sharing drinks or silverware. It’s transmissible, but they’re less likely to catch mononucleosis than other common diseases like a cold.
Mononucleosis isn’t usually a serious disease, but people can have complications that make it more dangerous. The symptoms of mononucleosis may range from mild to severe. People may not be able to participate in their normal daily activities for several weeks.
Some people are exposed to Epstein-Barr virus as kids. But that doesn’t always mean they will get mononucleosis. People can carry the virus in their body for their entire life without ever having symptoms of mononucleosis.
Mononucleosis may have different symptoms in different people. Fever, fatigue, sore throat, swollen lymph nodes, sore muscles, loss of appetite etc. are common symptoms of mononucleosis.