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Herpes Simplex Virus Type 1 DNA (Genomic) in Saliva by Nucleic Acid Probe

Published: August 9, 2026Updated: August 16, 2026

This test detects the presence of genetic material from Herpes Simplex Virus Type 1 (HSV-1) in your saliva. It helps identify if you have an active infection or have been exposed to the virus.

Quick summary

["This test can help diagnose or monitor HSV-1 infections in saliva samples."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
95140-0
Short code
HSV 1+2 DNA Pnl Amn NAA+probe
Synonyms
HSV 1+2 DNA Pnl Amn NAA+probe
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your healthcare provider may recommend this test if you have symptoms like sores or lesions around your mouth, lips, or genitals, or if you have recurrent cold sores. It may also be used in research or specific clinical settings to study HSV-1 exposure.

What to Expect Before the Test

No special preparation is needed. You will provide a saliva sample, which is typically collected by swabbing your inner cheek or spitting into a container. This is usually done in a lab setting or at home if instructed.

What the Test Results Mean

A positive result means the virus’s genetic material was found in your saliva, indicating possible active infection or recent exposure. A negative result means the virus was not detected in this sample. Results should be interpreted by a healthcare provider in the context of your symptoms and medical history.

Common Causes of Positive Results

Positive results can occur during active outbreaks of cold sores, after initial infection, or in some cases of latent infection where the virus is reactivated.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test is primarily useful for diagnosing HSV-1 infections in saliva, especially in cases where other tests or symptoms suggest exposure. It can help guide treatment decisions, monitor viral load, or assess research studies. However, it is not a definitive test for HSV-1 infection alone and should be used alongside clinical judgment and other diagnostic criteria.

Short name

HSV-1 DNA Saliva Test

Frequently asked questions

What does a positive result mean for my health?
A positive result suggests the presence of HSV-1 genetic material in your saliva, which may indicate an active infection or recent exposure. This does not always mean you will develop symptoms immediately, but it does mean you could be contagious to others. Consult your healthcare provider for personalized advice.
Can this test detect if I’ve had HSV-1 before?
This test detects active viral genetic material in saliva, not past infection. If you’ve had HSV-1 before, you may have antibodies in your blood that could be tested separately, but that is not covered by this saliva-based test.
How often should I get this test if I have recurrent cold sores?
If you experience recurrent cold sores, your healthcare provider may recommend testing during active outbreaks or at specific intervals based on your symptoms and medical needs. Regular testing is not typically routine unless advised by your provider.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy