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Cytomegalovirus, or CMV, infects between 50% and 80% of persons in the United States by 40 years of age. CMV prevalence is higher in developing countries and areas with lower socioeconomic conditions.

Healthcare providerClinical Features

Characteristics of virus, transmission and prevention.

Pregnant womanAt-Risk Patients

Infection in pregnant women and immunocompromised patients.

Lab testingInterpretation of Laboratory Tests

Tests to detect IgM and IgG antibody to CMV; what a positive test or an avidity assay may indicate.

NewbornClinical Diagnosis and Treatment

Laboratory tests that detect congenital CMV infection must be done during the first week after birth.

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