Detecting Active or Recent Varicella Zoster Virus Infection
The VZV IgM test detects the presence of immunoglobulin M (IgM) antibodies in the blood, which indicates a recent or current infection with the Varicella Zoster Virus (VZV). This virus is responsible for causing chickenpox (varicella) and shingles (herpes zoster). The test helps diagnose acute infection or reactivation of the virus in individuals who have symptoms suggestive of VZV infection.
Covid Safety
Assured
Free Report
Counselling
Recommended for You
How our test process works!
Overview:
- The test is primarily used to determine if someone is currently experiencing an acute infection of chickenpox or shingles.
- IgM antibodies are the first to appear in response to an infection, so their presence indicates recent exposure to the virus or an active infection.
Risk Assessment:
- Individuals at risk of VZV infection:
- People who have not had chickenpox or been vaccinated (for example, in childhood).
- Immunocompromised individuals (e.g., those undergoing chemotherapy or with HIV).
- Healthcare workers who may be exposed to the virus.
- Pregnant women who have not had chickenpox or vaccination, as VZV can cause severe complications for the fetus.
- People with close contact to someone with active chickenpox or shingles.
Normal Range:
- Normal: Typically, a VZV IgM result is negative (or no detectable IgM antibodies).
- Positive: Indicates recent infection or acute phase of infection with the virus.
Interpretation of Results:
- Positive IgM: Suggests a recent or current active infection with VZV. If there are symptoms of chickenpox or shingles, a positive result supports the diagnosis of acute infection.
- Negative IgM: Does not rule out infection but suggests that the individual either has not been recently infected or is not in the acute phase of infection.
- Indeterminate result: Some labs may report an indeterminate result due to test conditions or sample handling issues. Follow-up testing might be necessary.
Sample Type:
- The test is performed on serum or plasma, which is obtained from a blood sample.
Frequently Asked Question
Varicella Zoster Virus (VZV) IgM
Detecting Active or Recent Varicella Zoster Virus Infection
The VZV IgM test detects the presence of immunoglobulin M (IgM) antibodies in the blood, which indicates a recent or current infection with the Varicella Zoster Virus (VZV). This virus is responsible for causing chickenpox (varicella) and shingles (herpes zoster). The test helps diagnose acute infection or reactivation of the virus in individuals who have symptoms suggestive of VZV infection.
Covid Safety
Assured
Free Report
Counselling