Test library
Chickenpox Immunity Test
The Varicella VZV Titer Test measures IgG antibodies against the varicella zoster virus to show whether a person has immunity from past chickenpox infection or vaccination. It is commonly used for pre-exposure screening.
Order Varicella VZV Titer Test
Order online and visit a local collection site, or choose an at-home kit where available. No referral and no insurance required.
Order Varicella VZV Titer Test- Typical turnaround
- 1-3 business days
- Starting price
- From $130
- Results
- Confidential, online
Quick answer
The Varicella VZV Titer Test is a blood test that measures immunoglobulin G antibodies against the varicella zoster virus, the virus that causes chickenpox. A positive result generally indicates immunity from previous infection or vaccination. It is often ordered to check immunity before exposure risk, during pregnancy planning, or for healthcare and school requirements. A qualified healthcare provider interprets the result.
What this test measures
Varicella zoster virus causes chickenpox, usually in childhood, and then remains dormant in the body. It can reactivate later as shingles. After infection or vaccination, the immune system typically produces IgG antibodies that provide protection against chickenpox.
The test requires a blood sample from a vein, and the serum is analyzed for varicella zoster IgG antibodies. The report indicates whether antibodies are present and may include a quantitative level. In some cases, a follow-up test is used to assess response after vaccination.
Clinicians order this titer to determine immune status in people without a reliable history of chickenpox or vaccination, and in settings such as healthcare work, pregnancy planning, and school or employment screening. The result supports decisions about vaccination, which should be made with a qualified healthcare provider.
- Varicella zoster virus IgG antibodies
- Varicella zoster virus IgM antibodies when indicated
- Varicella zoster virus IgG antibody index
- Total serum IgG when included
- Varicella zoster virus glycoprotein-specific antibodies
- Serologic immunity status
Why people order this test
- Check immunity before exposure risk
- Confirm a history of chickenpox or vaccination
- Screen during pregnancy planning with a provider
- Meet healthcare or school immunity requirements
- Assess antibody response after vaccination
- Determine susceptibility for individuals without a clear history
How to prepare
No fasting is required for this test. A blood sample is drawn from a vein, usually at the arm. Follow any instructions provided by the laboratory regarding timing or recent vaccination.
Understanding your results
Results are typically available within one to three business days. A positive result generally indicates immunity, while a negative or equivocal result may suggest susceptibility and prompt a discussion about vaccination. A qualified healthcare provider interprets the result in context.
Chickenpox Immunity Test by state
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Chickenpox Immunity Test across Alabama.
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Chickenpox Immunity Test across Alaska.
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Chickenpox Immunity Test across Arizona.
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Chickenpox Immunity Test across Arkansas.
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Chickenpox Immunity Test across California.
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Chickenpox Immunity Test across Colorado.
Connecticut
Chickenpox Immunity Test across Connecticut.
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Chickenpox Immunity Test across Delaware.
Florida
Chickenpox Immunity Test across Florida.
Georgia
Chickenpox Immunity Test across Georgia.
Hawaii
Chickenpox Immunity Test across Hawaii.
Idaho
Chickenpox Immunity Test across Idaho.
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Frequently Asked Questions
What does the varicella titer test measure?
It measures IgG antibodies against the varicella zoster virus. Their presence generally indicates immunity from past infection or vaccination.
What is the difference between varicella and zoster?
Both refer to the same virus. Varicella is the chickenpox illness, while zoster is the shingles illness that occurs when the dormant virus reactivates.
Do I need to fast before this test?
No. Fasting is not required. A blood sample is drawn from a vein, usually at the arm.
Does a positive result mean I am protected?
A positive IgG result generally indicates immunity. A qualified healthcare provider can explain what the result means for your situation, including any vaccination decisions.
When should this test be ordered?
It is commonly ordered when immunity status needs to be documented, such as before healthcare work, during pregnancy planning, or for school and employment screening.
Ready to get tested?
Order online and visit a collection site near you, or choose a mail-in kit. No referral and no insurance required.
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