Definition of CMV - gastroenteritis/colitis:

CMV gastroenteritis/colitis is inflammation of the stomach or intestine caused by infection with cytomegalovirus (CMV).

See also:

• CMV esophagitis
• CMV immunocompromised host
• CMV pneumonia
• CMV retinitis
• Congenital CMV

Causes, incidence, and risk factors:

Cytomegalovirus (CMV) is a member of a group of herpes-type viruses. It is related to the virus that causes chickenpox. Infection with CMV is very common.

The infection is spread by saliva, urine, respiratory droplets, sexual contact, and blood transfusions. Most humans are exposed to the virus in their lifetime, but it usually produces no symptoms in healthy people. However, serious CMV infections can occur in people with weakened immune systems. This includes patients receiving chemotherapy for cancer treatment and patients on immune-suppressing medicines following an organ transplant. People with inflammatory bowel disease can develop gastrointestinal CMV infections.

In rare instances, more severe CMV infection involving the GI tract has been reported in people with healthy immune systems. When CMV colitis occurs in patients with normal immune systems, the patients typically have other serious medical conditions such as severe injury, kidney failure, or infection.

The following increase your risk for CMV gastroenteritis/colitis:

• AIDS
• Bone marrow or organ transplant
• Chemotherapy
• Medications that suppress the immune system