Cytomegalovirus (CMV) is a common infection caused by a type of herpes virus. Once infected, the virus remains in your body for the rest of your life. It is often in a sleeping state but can be activated by stressful situations.
The Lymphatic Organs
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The virus is passed between people through body fluids. CMV can be passed during:
This virus is so common throughout the US that everyone is considered at risk for CMV. People with the highest risk of getting this virus include:
The virus does not cause any symptoms when it is inactive. The virus may be activated because of stressful situations, medication, illness, or reduced immunity. Symptoms of the activated virus include:
People with suppressed or impaired immune systems can also develop:
CMV infection is not often diagnosed because the virus rarely produces symptoms. If CMV is suspected, the doctor may look for signs of the infection in blood or fluid samples. A biopsy may also be done on organs that are affected.
Most people infected with CMV will not need a specific treatment. Treatment may be needed if the virus is reactivated and you have a weakened immune system.
Antiviral medications may be used for people who have an organ transplant or a suppressed immune system. These medications do not cure CMV but can decrease the symptoms and duration of the illness.
There is no way to prevent CMV, but there are some measures that can decrease your chance of the infection:
Centers for Disease Control and Prevention
Infectious Diseases Society of America
Public Health Agency of Canada
Cytomegalovirus. Family Doctor—American Association of Family Physicians website. Available at: http://familydoctor.org/familydoctor/en/diseases-conditions/cytomegalovirus.html. Updated July 2013. Accessed June 10, 2015.
Cytomegalovirus (CMV) infection. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed. Updated February 26, 2015. Accessed June 10, 2015.
Cytomegalovirus and congenital CMV infection. Centers for Disease Control and Prevention (CDC) website. Available at: http://www.cdc.gov/cmv/index.html. Updated July 28, 2010. Accessed June 10, 2015.
Last reviewed June 2015 by David L. Horn, MD, FACP
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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