Chickenpox Immunity Test (VZV IgG)
Know your chickenpox immunity before exposure.
The Chickenpox Immunity Test (VZV IgG) is a simple blood test that checks whether you have protective antibodies against the varicella zoster virus (VZV), the virus that causes chickenpox. It is ideal for adults who are unsure whether they have had chickenpox, for healthcare workers and carers who need to confirm immunity before working with vulnerable patients, and for anyone planning pregnancy or considering exposure risk. The test helps determine whether you are already immune or may benefit from vaccination.
What is screened
- Varicella zoster virus (VZV) IgG: detects antibodies that indicate past infection or vaccination, helping to confirm immunity to chickenpox.
Who it is for
- Adults with no clear history of chickenpox
- Healthcare professionals, carers, and nursery staff requiring immunity checks
- People planning pregnancy or undergoing fertility assessment
- Anyone wishing to confirm their immune status before exposure
Why it matters
Chickenpox is usually mild in children but can be more serious in adults, pregnant women, and people with weakened immune systems. Knowing your immunity allows you to make informed decisions about vaccination and helps protect those at higher risk of complications.
Chickenpox Immunity
- Varicella zoster virus (VZV) IgG
No special preparation required.
For blood tests, we recommend drinking plenty of water beforehand to ensure smooth sample collection. If you are taking any regular medication, continue to do so unless advised otherwise by your doctor.
Important Clinical Information:
This test is a screening tool to monitor and support your overall health. It does not replace your GP or consultant.
Always discuss your test results, especially any abnormal results, with your GP, who can interpret them in the context of your medical history and overall health.