What is the infectious agent that causes cytomegalovirus infection?
Cytomegalovirus is a member of the herpesvirus family. Other members of the herpesvirus family cause chickenpox, infectious mononucleosis, fever blisters, and genital herpes. These viruses all share the ability to remain alive, but dormant, in the body for life. A first infection with CMV usually causes no symptoms. The virus continues to live in the body silently without causing obvious damage or illness. It rarely becomes active for the first time or reactivates (causes illness again in the same person) unless the immune system weakens and is no longer able to hold the virus in check. Where is cytomegalovirus found? CMV is found worldwide. The virus is carried by people and is not associated with food, water, or animals. How do people get infected with cytomegalovirus? CMV is spread from person to person. Any person with a CMV infection, even without symptoms, can pass it to others. In an infected person, the virus is present in many body fluids, including urine, blood, saliva, semen