Infectious Mono

Learn about the symptoms and treatment of the kissing disease in adults and children.

Infectious mononucleosis is a contagious illness sometimes called mono. Learn about its symptoms, transmission, diagnosis, prevention, and treatment.

Mononucleosis is an infectious illness that’s usually caused by the Epstein-Barr virus (EBV). It’s also called mono or “the kissing disease.”

Infectious Mononucleosis - Learn about the causes, symptoms, diagnosis & treatment from the Merck Manuals - Medical Consumer Version.

Infectious mononucleosis is characterized by swollen lymph glands, fever, sore throat, and chronic fatigue.

Infectious mononucleosis is an illness caused by a viral infection. It is commonly called mononucleosis, or mono. Mononucleosis is most often caused by the…

Mononucleosis (often called “mono”) is a contagious illness. It is usually caused by the Epstein-Barr virus. Some of the symptoms of mono are similar to those of a cold or flu.

Infectious mononucleosis should be suspected in patients 10 to 30 years of age who present with sore throat and significant fatigue, palatal petechiae, posterior cervical or auricular adenopathy, marked adenopathy, or inguinal adenopathy. An atypical lymphocytosis of at least 20 percent or atypical lymphocytosis of at least 10 percent plus lymphocytosis of at least 50 percent strongly supports the diagnosis, as does a positive heterophile antibody test. False-negative results of heterophile antibody tests are relatively common early in the course of infection. Patients with negative results may have another infection, such as toxoplasmosis, streptococcal infection, cytomegalovirus infection, or another viral infection. Symptomatic treatment, the mainstay of care, includes adequate hydration, analgesics, antipyretics, and adequate rest. Bed rest should not be enforced, and the patient's energy level should guide activity. Corticosteroids, acyclovir, and antihistamines are not recommended for routine treatment of infectious mononucleosis, although corticosteroids may benefit patients with respiratory compromise or severe pharyngeal edema. Patients with infectious mononucleosis should be withdrawn from contact or collision sports for at least four weeks after the onset of symptoms. Fatigue, myalgias, and need for sleep may persist for several months after the acute infection has resolved.

Infectious mononucleosis, or "mono", is an infection usually caused by the Epstein-Barr virus. The virus spreads through saliva, which is why it's sometimes called "kissing disease." Mono occurs most often in teens and young adults. However, you can get it at any age.