Cytomegalovirus (CMV) IgG Antibody Test
The CMV IgG test detects Immunoglobulin G (IgG) antibodies in the blood, which indicate past or ongoing infection with Cytomegalovirus (CMV). This test helps determine whether a person has had a previous CMV infection and has developed immunity.
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How our test process works!
Overview
The Cytomegalovirus (CMV) IgG test is a blood test used to determine if a person has been exposed to CMV, a common virus that belongs to the herpesvirus family. CMV infections are usually mild in healthy individuals but can be serious in newborns and immunocompromised individuals (e.g., organ transplant recipients, HIV patients).
Risk Assessment
-
High-Risk Groups:
- Pregnant women (risk of congenital CMV in the baby)
- Newborns (risk of birth defects or hearing loss)
- Immunocompromised individuals (e.g., HIV/AIDS, cancer patients, transplant recipients)
- Healthcare workers and childcare providers (higher exposure risk)
-
Transmission:
- Direct contact with bodily fluids (saliva, urine, blood, breast milk, semen)
- Organ transplantation or blood transfusion
- Congenital transmission (mother to baby during pregnancy).
Normal Range
- Negative CMV IgG: Typically < 0.9 AU/mL (varies by lab)
- Equivocal Range: 0.9 - 1.1 AU/mL (may need retesting)
- Positive CMV IgG: Typically > 1.1 AU/mL
Interpretation of CMV IgG Test Results
| Result | Interpretation | Meaning |
|---|---|---|
| Negative (CMV IgG < normal range) | No prior infection | The person has never been exposed to CMV and has no immunity. |
| Positive (CMV IgG > normal range) | Past exposure or infection | The person has been infected with CMV at some point and has developed immunity. |
| CMV IgM Positive + CMV IgG Positive | Recent or active infection | A current or very recent CMV infection is likely. Further testing may be required. |
| CMV IgM Negative + CMV IgG Positive | Past infection, not active | The person was previously infected, but there is no active infection now. |
Sample Type
- Specimen Required: Blood sample (Serum)
- Collection Method: Venipuncture (Blood drawn from a vein).
Frequently Asked Question
Cytomegalo Virus (CMV) -IgG
Cytomegalovirus (CMV) IgG Antibody Test
The CMV IgG test detects Immunoglobulin G (IgG) antibodies in the blood, which indicate past or ongoing infection with Cytomegalovirus (CMV). This test helps determine whether a person has had a previous CMV infection and has developed immunity.
Covid Safety
Assured
Free Report
Counselling
