Cytomegalovirus is a large herpes-type virus commonly found in humans that can cause serious infections in people with impaired immunity. CMV esophagitis, which may lead to ulcers, is treated with antiviral medications, which may stop the replication of the virus but will not destroy it.
Review Date 9/1/2021
Updated by: Jatin M. Vyas, MD, PhD, Associate Professor in Medicine, Harvard Medical School; Associate in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital, Boston, MA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.