Congenital Cytomegalovirus Public Health Data

Congenital cytomegalovirus (CMV) is a reportable condition in Minnesota. Reported positive cases include those that are found through newborn screening and cases identified through other diagnostic testing. Cases are reviewed and included in the data below if they meet the CSTE case definition. By following this data, the Minnesota Department of Health is hoping to better understand and describe congenital CMV in Minnesota. 

387 congenital CMV cases in Minnesota

Feb. 6, 2023 – Apr. 30, 2025 

• 56% of all cases lived in the 7-county metro area at the time of birth.
• 56 out of 87 counties in Minnesota have had at least one case of congenital CMV.  
• 27^ children with congenital CMV also have  hearing loss affecting the inner ear (sensorineural hearing loss, or mixed hearing loss, which has a sensorineural component).  

 Updated May 8, 2025 - Data are preliminary and may change as reports are received.  

^Includes infants and children identified with hearing loss with a sensorineural component as of April 30, 2025. This number may change as babies with congenital CMV receive audiology monitoring throughout childhood. 

*Screening and surveillance activities for congenital CMV started on Feb. 6, 2023. The first year of data includes cases born from Feb. 6, 2023 – Dec. 31, 2023 and will likely be fewer than following years.

**Probable and confirmed congenital CMV cases that meet CSTE case definition for infection or disease.

Resources

More information about cases identified through newborn screening can be found on the Newborn Screening Data Summaries webpage. For more information on who is required to report, how to make a report, and what to report, please visit the Reporting Cytomegalovirus webpage.