What information does the CMV IgG test provide?

The CMV IgG test is a blood test that measures the levels of specific antibodies called immunoglobulin G (IgG) against cytomegalovirus (CMV). Here’s what the CMV IgG test can tell us:

1. Past CMV Infection: The primary purpose of the CMV IgG test is to determine if a person has been previously infected with CMV. A positive CMV IgG result indicates that the individual has developed antibodies in response to a past CMV infection.
2. Immune Status: The presence of CMV IgG antibodies suggests that the person is immune to future CMV infections.
3. Pregnancy Considerations: The CMV IgG test is often performed during pregnancy to assess a woman’s immune status to CMV.
4. Timing of Infection: While the CMV IgG test indicates past CMV infection, it doesn’t provide information about the timing of the infection.

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