Herpes Simplex Virus Antibody Titration (Serum)

What Does This Test Measure?

The test detects specific antibodies produced by your immune system in response to HSV. These antibodies are part of your body’s defense against the virus. The titer (a measure of antibody concentration) can indicate whether you’ve had an infection before or if you’re currently dealing with it.

Why Might You Need This Test?

Doctors may order this test if you have symptoms like sores, pain, or unusual rashes that could be related to HSV, especially if you’ve had similar issues before. It can also be used to confirm a diagnosis in cases where symptoms are unclear or if you’re at higher risk for complications.

How Is the Test Performed?

A blood sample is taken from a vein in your arm. The sample is then sent to a lab where antibodies against HSV are measured using an immunoassay method. The result is expressed as a titer value, which reflects the strength of your immune response.

What Are the Possible Results?

Results are qualitative (positive or negative) or quantitative (showing a specific titer level). A positive result means you have detectable antibodies, suggesting past or current HSV exposure. The exact titer level can help determine the timing and nature of your exposure.