What is CMV?

1 min. readlast update: 02.01.2024

Cytomegalovirus, often referred to as CMV, is a common virus in the same family as chickenpox and cold sores. When infected, the individual will suffer from mild cold- or flu-like symptoms for one to two weeks. Some infected individuals have no detectable symptoms. Following infection, most individuals gain immunity from the virus.

Between 50 and 85 percent of American adults have been exposed to CMV, with the majority of cases occurring in childhood – these individuals will test CMV positive. If you test CMV negative, it’s essential to select CMV negative sperm donors, as CMV can transmit via bodily fluids, such as semen.

If someone who is pregnant contracts CMV, the virus puts the unborn child at risk of severe medical issues, including intellectual disability, deafness, and seizures.

No vaccination for CMV currently exists.


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