Only virus recovered from a target organ such as the lung provides unequivocal evidence that the disease is caused by acquired CMV infection. For diagnosing CMV, the following process may be helpful. If serologic tests indicate a positive or high titer of IgG, do not automatically conclude that active CMV infection is present. At the present time there is no treatment for CMV infection in the healthy individual. Potential antiviral drug therapy is now being evaluated in infants and in patients with depressed immunity, who have either sight or life-threatening illnesses.
Vaccines are still in the research and development stage and are years away from widespread use.
The Biomedical Research Institute at the Children's Hospital in St. Paul Minnesota, has published a brochure titled CMV, Diagnosis, Prevention, and Treatment, 2nd Edition.