Chickenpox (Varicella Zoster) Immunity
A private blood test that checks your immunity to chickenpox by measuring varicella zoster IgG antibodies. Ideal for occupational health clearance and pre-pregnancy screening.
Allergy & Immunity, Blood Tests- Description
- Associated Conditions
- Uses of This Test
- Why This Test?
Chickenpox is caused by the varicella zoster virus. Most people are exposed in childhood and develop lasting immunity, but not everyone has a clear memory of having had it. This blood test measures IgG antibodies to confirm whether you are immune.
Checking varicella immunity is especially useful for healthcare and care workers, who often need documented proof of immunity for occupational health clearance, and for women planning a pregnancy, as chickenpox during pregnancy can carry risks. It is also relevant before starting treatments that suppress the immune system.
A positive IgG result confirms protective immunity. A negative result suggests you are not immune and may benefit from the chickenpox vaccine, which we can discuss with you at the clinic.
This test checks long-term immunity and is carried out in clinic using a venous blood sample. It is not used to diagnose an active chickenpox or shingles infection.
Chickenpox Immunity
A positive IgG result confirms protective immunity from previous chickenpox or vaccination.
Non-immune Status
A negative result suggests you are not immune and may be at risk if exposed.
Vaccination Decision
Helps decide whether the varicella (chickenpox) vaccine is recommended.
- Confirm chickenpox immunity for occupational health
- Check immunity before planning a pregnancy
- Assess immunity before immunosuppressive treatment
- Decide whether the chickenpox vaccine is needed
Varicella zoster virus causes chickenpox, and this blood test measures IgG antibodies to show whether you are immune. A positive result means you have protective immunity from a previous infection or from vaccination.
Checking varicella immunity is useful for:
- Healthcare and care workers who need documented proof of immunity for occupational health
- Women planning a pregnancy who are unsure whether they have had chickenpox
- People with no clear history of chickenpox before starting treatment that suppresses the immune system
- Confirming whether the chickenpox vaccine is needed
This test checks long-term immunity (IgG) and is not used to diagnose an active, current chickenpox or shingles infection.
What We Test
Biomarkers analysed by accredited UK laboratories
Biomarker Tested
Varicella Zoster Immunity
- Varicella Zoster Virus IgG antibodies
Reflects long-term immunity to chickenpox from previous infection or vaccination. A positive result indicates protective immunity; a negative result suggests you are not immune.
Measures IgG antibodies to varicella zoster virus to confirm immunity to chickenpox.
In-Clinic Blood Testing At Longridge, Preston
If you’d rather leave everything to a qualified professional, our in-clinic blood testing service is the most comfortable and hands-off experience. Once you complete your order, we’ll contact you to arrange a convenient appointment time.
Your sample will be taken by a trained phlebotomist, making the process quick, smooth, and reassuring - especially if you’re nervous around blood or struggle with finger-prick tests.
We send off all samples the same day to the lab to be processed so results can be expected within 72 hours.
Why Use This Service:
Hands-off, professional experience
High-quality samples for complex tests
No risk of “not enough sample”
Support at every step
No posting or packaging required
Convinient appointment times
Taking Charge Of Your Own Health Has Never Been Easier
Worried about your wellbeing?
If you’re experiencing unexplained symptoms such as fatigue, weight loss, or other issues, a comprehensive blood test may be the key to discovering potential underlying health problems.
Need to monitor a health condition?
Blood tests offer essential insights into various aspects of your health, from detecting deficiencies to evaluating immune functions.
Enhancing Performance and Fitness?
Whether you’re training for a sport or keeping track of your fitness progress, a blood test serves as an excellent foundation for your performance improvement journey.
All Our Tests Include:
No GP Referral
Order directly - no waiting for appointments
Fast Results
Detailed analysis within 72 hours
Laboratory Commentary
Expert interpretation of your results included
Secure & Confidential
Discreet service and consultations
Frequently Asked Questions
- Qualified Pharmacists
- Flexible Appointments
- Top Customer Service
Are weekend appointments available?
Yes. We are open 10am to 6pm on Saturdays, with blood test appointments available by arrangement, so you can fit your test around work and family.
Are same-day appointments available?
Often, yes. If you need a blood test today, call us on 01772 439054 and we will do our best to fit you in the same day.
What if my results need explaining?
Every result comes with a doctor’s commentary written in plain English, so you understand what your numbers mean. If anything is unclear or needs a follow-up, our pharmacists are happy to talk you through it.
How much do private blood tests cost in Preston?
Prices start at £39 for a single-marker test such as our Cholesterol/Lipid Profile and rise to £349 for the Allergy Complete 295-allergen panel. Most comprehensive health panels cost between £100 and £180, and every result includes a doctor’s commentary at no extra charge.
What is the difference between a home finger-prick test and a clinic appointment?
Both use exactly the same accredited UK laboratories. A home kit suits busy schedules and simpler tests, while a clinic appointment with our phlebotomist is better for comprehensive panels, larger samples, or anyone who would rather not take their own sample. If you are not sure which to choose, call us and we will point you to the right option.
Where is the clinic?
You will find us at 54 Berry Lane, Longridge, Preston PR3 3JP, with free parking on site. We see patients from Longridge, Preston, the Ribble Valley and across Lancashire.
What if I’m on the pill, coil or HRT?
Just tell us at booking. Hormonal contraception and HRT affect some results, and our commentary will interpret your numbers in that context so they actually make sense for you.
What can an AMH test tell me?
AMH is the single best blood marker of your ovarian reserve, a useful indicator if you’re planning for a family, considering egg freezing, or simply want to understand your fertility. It can be tested on any day of your cycle.
When in my cycle should I take a hormone test?
It depends on the test. AMH can be done on any day. Baseline hormones (FSH, LH, oestradiol) are usually taken on days 2 to 5. Progesterone is taken around day 21 (about 7 days before your next period is due). We’ll guide you on timing when you book.
When is the best time to take a testosterone test?
Ideally in the morning (before 11am), when testosterone is at its natural peak. We’ll guide you on timing when you book.
What’s the best test if I think my testosterone is low?
Testosterone Plus, which measures total and free testosterone plus SHBG and the Free Androgen Index. Total testosterone alone misses many men whose symptoms come from low free testosterone, so getting the complete picture matters.
Do I need an allergy test or intolerance test?
If your reactions are fast (hives, swelling, wheezing), the 295-allergen IgE panel is the right starting point. If they’re slower and gut-based (bloating, cramps, fatigue), a targeted intolerance or coeliac profile may suit you better. Not sure? Call us and we’ll guide you.
What does the 295-allergen panel test for?
Foods, pollens, animals, dust mites, moulds, insect venoms, drugs and contact allergens (all from a single blood sample). The full allergen list can be found on the product page.
How accurate are home finger-prick tests compared to clinic tests?
Our home finger-prick tests use the same accredited laboratories as our clinic tests. While clinic tests allow for more comprehensive panels, home tests are highly accurate for the parameters they measure.
Do I need a GP referral for a blood test?
No, you don’t need a GP referral. You can book directly with us for any blood test. We are a private clinic offering direct access to comprehensive blood testing.
How old do I have to be to have a blood test?
We will only draw blood from those aged 16 and above due to legal requirements.
How long does it take for the blood test results to come?
If you have used our clinic to complete a blood test, we send off all samples the same day to the lab to be processed. If you have used a home test kit, then once your sample has been sent off the lab will analyse your sample. Results are usually received within 72 hours.
How do I perform the home finger-prick test?
Your home blood test kit will contain easy-to-follow instructions on how to take your own finger blood sample. If you have any concerns or questions prior to using the kit, please contact our phlebotomists who will be happy to assist.
How do I prepare for a blood test?
There is no preparation required prior to taking any of the blood tests. Please simply remember to stay hydrated prior to your appointment. This is to help your veins dilate better to enable a quick and efficient blood sample to be taken and reduce the risks of feeling faint following your blood test.
Please inform the phlebotomist before your test if you are currently taking any blood thinning medication.
Should I fast before my blood test?
Fasting is not required for most blood tests. However, if your profile includes cholesterol tests and you’ve previously had high levels, consider fasting for 8 hours beforehand. While not essential, fasting can provide more accurate results.
Note: Fasting means abstaining from any food and drink, except for water.