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# Cytomegalovirus (CMV) and Congenital CMV Infection

About CDC.gov

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Cytomegalovirus (pronounced sy-toe-MEG-a-low-vy-rus), or CMV, is a common virus that infects people of all ages. Over half of adults by age 40 have been infected with CMV. Once CMV is in a person's body, it stays there for life and can reactivate. Most people infected with CMV show no signs or symptoms. However, CMV infection can cause serious health problems for people with weakened immune systems, as well as babies infected with the virus before they are born (congenital CMV).

More

                      -  About CMV    				    										Signs & symptoms, transmission, treatment...    				    			 
                      -  Babies Born with CMV (Congenital CMV Infection)    				    										Information about babies born with CMV infection, signs and symptoms, diagnosis, treatment...    				    			 
                      -  For Healthcare Professionals    				    										Characteristics of virus, at-risk patients, interpretation of laboratory tests...    				    			 
                      -  References and Resources    				    										Other websites and publications...    				    			 

### CMV e-Card

Send an eCard to a pregnant friend or family member:

### CMV Home

- About CMV
- Babies Born with CMV
- For Healthcare Professionals    - Clinical Overview
  - Congenital CMV Infection
  - Laboratory Testing 
- References and Resources

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            - Page last reviewed:  June 17, 2016
            - Page last updated:  June 17, 2016
            - Content source:    									               - National Center for Immunization and Respiratory Diseases ,  Division of Viral Diseases 

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