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

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

This test detects the presence of genetic material from the herpes simplex virus type 1 (HSV-1) in your saliva. It helps determine if you have an active infection or have been exposed recently.

Quick summary

["This test can help diagnose or monitor HSV-1 infections, especially in cases where symptoms are unclear or recurrent."]

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

Key facts at a glance

LOINC
16130-7
Short code
HSV1 DNA Spec Ql NAA+probe
Synonyms
HSV1 DNA Spec 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 sores, fever blisters, or recurrent cold sores, or if you’re experiencing unexplained oral or genital sores. It may also be used to confirm exposure in certain high-risk situations, such as newborns born to infected mothers or individuals with frequent outbreaks.

What the Test Involves

You’ll provide a saliva sample (like spitting into a container) instead of a blood draw. The sample is then tested for HSV-1 DNA using a specialized lab technique that amplifies tiny amounts of genetic material for detection.

What the Results Mean

A positive result means HSV-1 DNA was found in your saliva, suggesting an active infection. A negative result means no detectable genetic material was found at the time of testing, but HSV-1 can still be present in low levels or dormant. Results may vary depending on the stage of infection.

How Results Are Used

These results help guide treatment decisions, such as antiviral medications to manage symptoms or reduce transmission. They may also inform decisions about close contacts, especially in healthcare or childcare settings.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

HSV-1 is a common virus that causes cold sores and can also affect other parts of the body. While most people have it without symptoms, it can reactivate periodically. This test is particularly useful for diagnosing active infections, especially in cases where traditional symptoms (like sores) are not present or are unclear. It’s also critical in preventing spread to others, especially vulnerable groups like newborns or immunocompromised individuals.

Short name

HSV-1 DNA in Saliva

Frequently asked questions

How long does it take to get results from this test?
Results are typically available within 1 to 3 business days, depending on lab processing times. Your healthcare provider will contact you once they have the results.
What does a positive result mean for my health?
A positive result indicates you have an active HSV-1 infection at the time of testing. This doesn’t mean you’ll always have symptoms, but it means you may be contagious to others. Your provider will discuss treatment options and how to manage symptoms or reduce transmission.
Can I still have the virus even if my test is negative?
Yes, HSV-1 can be present in your body without detectable DNA in your saliva sample at the time of testing. The virus can also lie dormant and reactivate later, so ongoing monitoring or retesting may be recommended depending on 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