2. The Epstein-Barr virus causes mononucleosis.
Mononucleosis, or "mono", is a viral infection that affects the lymph nodes in the neck and the throat. Symptoms include a sore throat, swollen glands in the neck, groin, or armpits, fatigue, and a fever. These symptoms may be relatively mild and it is not uncommon for a person with Epstein-Barr virus to think they have a cold.
If Epstein-Barr lasts for six months or more, it is considered a chronic virus. The answer to the question, "Is mononucleosis contagious?" is "Yes". It is spread through contact with the moisture from the infected person's mouth. Mononucleosis is known as "the kissing disease" for good reason. It can also be spread by sharing utensils, drinking glasses, and toothbrushes with an infected person.
Once someone has been exposed to the Epstein-Barr virus, it goes through the lytic cycle. This includes the virus attaching itself to a host cell, inserting its genetic material into the cell, and spreads to other cells in the body.