Cytomegalovirus (CMV)

What Is It?

Cytomegalovirus (CMV) is a virus related to the herpes virus. It is so common that almost all adults in developing countries and 50% to 85% of adults in the United States have been infected.

Usually CMV is a mild disease that does not cause any serious problems in healthy children and adults. Most people get flu-like symptoms or an illness similar to mononucleosis, if they develop symptoms at all.

Being infected with this virus can be serious and even fatal in some people, however, including:

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