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Postal service updates: October - December

Herpes Simplex Virus I/II Past Infection Blood Test

Herpes Simplex Virus I/II Past Infection Blood Test


A blood test for herpes simplex IgG antibodies to confirm a previous infection of the virus and to distinguish between HSV I and HSV II.
Blood sample 2 biomarkers included Results estimated in 5 working days from sample receipt at lab
Herpes Simplex Virus I/II Past Infection Blood Test
Herpes Simplex Virus I/II Past Infection Blood Test
Herpes Simplex Virus I/II Past Infection Blood Test
Herpes Simplex Virus I/II Past Infection Blood Test

What's included?

Biomarker profile

  • Immunity

Immunity (2 Biomarkers)

Special instructions

Prepare for your Herpes Simplex Virus I/II Past Infection Blood Test by following these instructions. Do not take biotin supplements for two days before this test, discuss this with your doctor if it is prescribed.

From the expert

Herpes is a very common virus that has two forms - HSV I and HSV II. It causes cold sores (in the case of HSV I) and genital herpes (mostly in the case of HSV II).

It is estimated that up to 70% of the global population is infected with the HSV I form of the virus which is usually acquired during childhood. HSV I is not usually something to worry about. HSV II is also widespread (affecting over 10% of people in the UK) and is almost exclusively transmitted by sexual contact. It causes genital herpes, but this can also be caused by HSV I in certain circumstances. There is no cure for herpes and once infected the virus will remain with you for life.

Many of those with genital herpes don't know they are infected because there are often no noticeable symptoms or the symptoms are so mild that they are interpreted as something else. If symptoms do appear they may include small blisters around the genitals, stinging, burning or itching around the genital area and pain when urinating. Genital herpes tends to recur in cycles with each outbreak milder than the previous ones.

This blood test checks for the presence of two different antibodies - to confirm an infection and also distinguish which form of the virus is present. This test will not detect a current active infection because it can take time for the IgG antibodies to herpes to reach detectable levels. To avoid false negative results it is usually recommended to wait 12-16 weeks from the date of last possible exposure.

Dr Sam Rodgers MBBS, MRCGP
Chief Medical Officer

Why take this test?

  • You think you may have been exposed to the herpes virus and you wish to investigate further
  • You have recurrent outbreaks of symptoms that you think may be caused by genital herpes

Laboratories you can trust

Trusted by the NHS and private clinics alike, you can be sure of the highest testing standards from our UKAS accredited partner laboratories.

Dr Sam Rodgers - Chief Medical Officer

Expert advice with your results

Get trusted advice and comments from one of our doctors based on your results.

Your personal health centre

Your personal health centre

Discover the easy way to track your health through our online portal, View your results with doctor's advice, monitor any changes over time and see the improvements you can make to your health with simple lifestyle changes.

Questions? Let us help
Questions? Let us help

Questions? Let us help

Our customer care team is on-hand to help you find the test that's right for you. Get in touch via phone, live chat or email.


Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.