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Immunoassay for IgG antibodies to Dengue virus NS1 antigen (serum/plasma)

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

This test detects antibodies in your blood that may have developed in response to a past dengue virus infection. It helps determine if you’ve been exposed to the virus.

Quick summary

["Assesses past dengue exposure via antibody presence."]

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

Key facts at a glance

LOINC
63229-9
Short code
dsDNA IgG CSF IA-aCnc
Synonyms
dsDNA IgG CSF IA-aCnc
Category
chemistry
Sample
csf
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ia
CPT
82784
Specimen volume
1-2 mL
Stability
Immediate analysis required, Refrigerated: 1h
Hemolysis max
200
TAT
4–24 hours
Order
routine

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you’ve had symptoms of dengue fever (such as fever, headache, or muscle pain) or if you’ve traveled to areas where dengue is common. It can also be used during outbreaks or in research settings to track virus spread.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm to draw blood. The test uses a small amount of your blood, usually taken from the inside of your elbow.

What the Test Results Mean

Positive results indicate you likely had dengue in the past, meaning your immune system produced IgG antibodies to the virus. Negative results suggest no detectable antibodies, meaning either you’ve never been infected or the test was taken too soon after exposure.

Possible Causes of Positive Results

A positive result is most commonly due to past dengue infection. Rarely, it could be caused by cross-reacting antibodies from other infections or vaccines, but this is less likely with this specific test.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Dengue NS1 IgG Antibody

Frequently asked questions

How long does it take to get results?
Results are typically available within 1 to 3 business days, depending on your lab’s processing time. Your healthcare provider will discuss the results with you.
Can I get this test if I’m currently sick?
Yes, you can get this test even if you’re currently feeling unwell. However, if you have symptoms of dengue (fever, severe headache, muscle pain, or rash), you may need additional tests to rule out an active infection.
What if my results are positive but I don’t remember traveling to a dengue-endemic area?
A positive result doesn’t always mean you traveled to a high-risk area. Dengue can spread through mosquito bites anywhere, and some people may not recall symptoms or travel history. This test helps confirm past exposure regardless of travel history.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

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