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Herpes Simplex Virus Type 1 (HSV-1) DNA Detection in Saliva by Nucleic Acid Amplification Probe

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

This test checks for the presence of herpes simplex virus type 1 (HSV-1) genetic material in your saliva using a specialized probe to detect viral DNA.

Quick summary

["Helps identify if HSV-1 is active in your mouth or throat."]

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

Key facts at a glance

LOINC
106555-6
Short code
HSV1 DNA Throat Ql NAA+probe
Synonyms
HSV1 DNA Throat Ql 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 Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like cold sores, sore throat, or unexplained mouth ulcers, or if you have a history of recurrent herpes infections. It may also be used to confirm infection in individuals with no visible symptoms or to monitor certain conditions related to HSV-1.

What to Expect During the Test

You will provide a saliva sample, usually collected by swabbing your inner cheek or mouth. The sample is then sent to a lab for analysis using a probe-based technique to detect viral DNA. This process is quick and typically painless.

Sample Collection and Preparation

No special preparation is needed. You may eat, drink, or brush your teeth before the test. Avoid using mouthwash that contains alcohol or strong flavors, as it might affect the sample.

Test Results and Interpretation

Results are qualitative and indicate whether HSV-1 DNA was detected in your saliva. A positive result means the virus is present in your sample. A negative result suggests the virus may not be active at the time of testing or may not be present in detectable amounts.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

HSV-1 Saliva PCR

Frequently asked questions

What does a positive result mean?
A positive result indicates that HSV-1 genetic material was found in your saliva, suggesting an active infection. This may mean you have an ongoing cold sore or another HSV-1-related oral issue. Your healthcare provider will discuss next steps, which may include treatment or further monitoring.
What if I have no symptoms but test positive?
Even without visible symptoms, a positive test means the virus is present in your saliva. This can occur during asymptomatic shedding, which is common with HSV-1. Your provider may recommend managing symptoms, antiviral medications, or ongoing monitoring depending on your health needs.
How often should I get this test?
The frequency of testing depends on your symptoms, medical history, and healthcare provider’s recommendations. If you have recurrent infections, your provider may suggest periodic testing to monitor viral activity. Follow their guidance for the best approach to your situation.
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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