Herpes Simplex Virus I/II Past Infection Blood Test, from our experts to you.
Dr Sam Rodgers MBBS, MRCGP

Chief Medical Officer meet our doctors

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What is
herpes?

Herpes is a 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).

Roughly up to 70% of the global population is infected with HSV I, which is usually picked up 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. HSV II 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.


How do I know if
I have herpes?

Many people 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 assumed to be 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. The only way to confirm if you have herpes is by getting tested.


What can I learn
from this test?

Our blood test checks for two antibodies to confirm an infection and 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, we recommend waiting 12-16 weeks from the date of the last possible exposure.


What's included?

Immunity
Select profile for more information

Herpes simplex virus 1 IgG The herpes simplex virus causes herpes, a common sexually transmitted disease. Herpes simplex viruses are categorised into two types: herpes type 1 (HSV-1, or oral herpes) and herpes type 2 (HSV-2, or genital herpes). In response to a herpes infection, the body produces antibodies to fight the virus.
Herpes simplex virus 2 IgG The herpes simplex virus causes herpes, a common sexually transmitted disease. Herpes simplex viruses are categorised into two types: herpes type 1 (HSV-1, or oral herpes) and herpes type 2 (HSV-2, or genital herpes). In response to a herpes infection, the body produces antibodies to fight the virus.

How to prepare
for your test

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.


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