Herpes Simplex Virus Type 1 Antibody, Qualitative (Serum/Plasma)

What Does This Test Measure?

The test detects antibodies produced by your immune system in response to HSV-1. These antibodies indicate that your body has encountered the virus at some point, even if you don’t currently have symptoms. Antibodies are proteins that help fight infections and can remain in your blood for years after the initial exposure.

Why Might You Need This Test?

Doctors may order this test if you have symptoms like cold sores, recurrent mouth ulcers, or if you have a history of HSV-1 infection. It can also be used in certain research or screening contexts, such as for people at higher risk of infection or those with specific medical conditions.

What Does a Positive Result Mean?

A positive result means your body has produced antibodies against HSV-1, suggesting past exposure. This does not necessarily mean you are currently infected or experiencing active symptoms. It simply indicates your immune system has recognized and responded to the virus.

What Does a Negative Result Mean?

A negative result means the test did not detect antibodies to HSV-1 in your sample. This could mean you have never been exposed to the virus, or it may have been too early in the infection for your body to produce detectable antibodies. Follow-up testing or clinical evaluation may be needed if you suspect exposure.