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Antibody to Flavivirus, Qualitative (Serum/Plasma)

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

This test checks for antibodies to flaviviruses, a group of viruses that include diseases like dengue, yellow fever, and West Nile virus. It helps determine if your body has ever been exposed to these viruses.

Quick summary

["Determines past exposure to flaviviruses through antibody detection."]

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

Key facts at a glance

LOINC
7923-6
Short code
FLUAV HK Ab Ser-aCnc
Synonyms
FLUAV HK Ab Ser-aCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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

What This Test Measures

The test detects specific antibodies produced by your immune system in response to flavivirus infection. These antibodies are a sign that your body has encountered the virus at some point, even if you never developed symptoms or illness.

Why It Might Be Ordered

Healthcare providers may order this test if you have traveled to or live in an area with flavivirus risk, have symptoms like fever, headache, or rash, or if you’ve been exposed to a flavivirus through a bite from an infected mosquito or tick.

How the Test Works

A small blood sample is taken from your arm and sent to a lab. The serum or plasma is tested for the presence of flavivirus-specific antibodies using an immunoassay method, which identifies antibodies if they are present.

What to Expect Before the Test

No special preparation is needed. You may have a slight bruise or soreness at the injection site, but this usually goes away quickly. Avoid alcohol before the test if possible, as it may affect blood clotting.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Flavivirus Antibody Test (Qualitative)

Frequently asked questions

Will this test show if I currently have a flavivirus infection?
No, this test only detects antibodies, which appear after your body has already been exposed to the virus. If you suspect an active infection, additional tests like viral RNA detection may be needed.
Can I get this test at home?
No, this test requires a blood sample collected by a healthcare professional in a clinical setting. Home-based antibody tests for flaviviruses are not standard or reliable for this purpose.
How long will it take to get my results?
Results are typically available within 1 to 3 business days, depending on lab processing times. Follow up with your healthcare provider for a discussion of your results.
  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