Laboratory Diagnosis (2)
conventional cell culture is regarded as gold standard but requires up to 4 weeks for result.
More useful are rapid culture methods such as the DEAFF test which can provide a result in 24-48 hours.
the presence of CMV IgG antibody indicates past infection.
The detection of IgM is indicative of primary infection although it may also be found in immunocompromised patients with reactivation.