HSV (Herpes Simplex Virus) 1 & 2 IgG

HSV (HERPES SIMPLEX VIRUS) 1 & 2 IGG Test

The HSV 1 & 2 IgG test is a blood test that detects IgG antibodies produced by the immune system in response to Herpes Simplex Virus (HSV) infection. It typically assesses exposure to HSV-1 and HSV-2, which can cause oral or genital herpes.

IgG antibodies generally develop after infection and can remain in the body for a long time. Therefore, a positive result usually indicates previous or established exposure to HSV, but it does not by itself indicate when the infection occurred or whether the virus is currently active.

HSV-1 is commonly associated with oral herpes, although it can also cause genital infection. HSV-2 is more commonly associated with genital herpes. When active sores or blisters are present, a swab/PCR test from the lesion may be more useful for determining whether HSV is currently present.

HSV (HERPES SIMPLEX VIRUS) 1 & 2 IGG Test is Recommended for Individuals:

• Individuals with symptoms suggestive of herpes infection
• People with a history of recurrent oral or genital sores
• Individuals whose sexual partner has known genital herpes, when testing is clinically appropriate
• People undergoing evaluation for possible genital herpes
• Individuals who need assessment of previous HSV exposure as advised by a healthcare provider
• Pregnant individuals when HSV testing is specifically recommended based on their clinical history

FAQs

1. What does a positive HSV-1 or HSV-2 IgG result mean?
A positive IgG result generally indicates that the person has been exposed to the corresponding HSV type and has developed antibodies. It does not necessarily mean there is an active outbreak.

2. Does HSV IgG tell me when I got herpes?
No. The IgG test cannot reliably determine when the infection occurred. A positive result may reflect an infection acquired in the past.

3. Is HSV IgG the same as an HSV PCR test?
No. HSV IgG detects antibodies, indicating previous or established exposure, whereas HSV PCR detects viral genetic material and can be used to identify an active infection, particularly from a lesion sample. The appropriate test depends on symptoms and the reason for testing.