About Cytomegalovirus (CMV)
Cytomegalovirus (CMV) is a virus that can infect people of all ages. Most people never have symptoms of CMV. This is because a healthy person’s immune system can usually fight off the virus. However, the virus can cause health problems for some babies whose mothers become infected with CMV while they are pregnant.
Most babies born with CMV don’t have any symptoms. However, CMV can cause health problems at birth in some babies. These can include:
- vision problems
- hearing problems
- issues with the nervous system
Even babies who have no CMV symptoms when they are born can develop hearing loss when they get older.
A vaccine to prevent women from getting a CMV infection may be able to stop the spread of CMV from mothers to babies. At this time, there is no vaccine approved for this purpose.