Herpes Simplex Virus (HSV) Serology, Qualitative (IgG) by Immunoassay

What This Test Measures

The test detects specific antibodies (IgG) produced by your immune system after exposure to HSV. These antibodies are a sign that your body has encountered the virus, but they don’t indicate whether you have an active infection at the time of testing. IgG antibodies remain in your blood for years after infection.

How the Test Works

This is an immunoassay test, which uses a chemical reaction to identify the presence of HSV antibodies in your serum. The method detects IgG antibodies, which are typically present months to years after initial infection.

Why It’s Done

Doctors may order this test to assess past exposure to HSV, especially if you have a history of herpes outbreaks, recurrent infections, or if you’re evaluating for latent infection (when the virus is inactive but still present). It’s also used in certain medical or research settings to monitor immune response.

What to Expect Before the Test

No special preparation is needed. You may have a blood draw at a clinic, hospital, or lab. If you’re taking blood from your own arm, use an antiseptic wipe to clean the area and follow the instructions provided.