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Aflavusabtitrserid

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

This test detects antibodies against Aspergillus flavus fungus in your blood using immune diffusion method to help diagnose fungal infections.

Quick summary

{"Detects antibodies against Aspergillus flavus mold","Helps diagnose aspergillosis (fungal infection)","Performed on blood serum sample","Results reported as a titer (dilution level)","Mainly used for immunocompromised patients"}

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

Key facts at a glance

LOINC
27309-4
Short code
A flavus Ab Titr Ser ID
Synonyms
A flavus Ab Titr Ser ID
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
immune-diffusion
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 is this test?

The Aspergillus flavus antibody test is a blood test that detects whether your immune system has produced antibodies against Aspergillus flavus, a type of mold that can cause respiratory and systemic infections. The test uses immune diffusion (ID), a laboratory method where antibodies in your serum are allowed to diffuse toward fungal antigens in a gel medium. If antibodies are present, they form a visible precipitin line, indicating a positive result. The result is reported as a titer, which indicates the highest dilution of your blood serum that still shows a positive reaction.

Why is this test ordered?

Your healthcare provider may order this test if you have symptoms of a fungal infection, especially if you have a weakened immune system. Symptoms may include fever, cough, chest pain, difficulty breathing, or sinus problems. This test helps differentiate between current infection and past exposure to the fungus.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

Do I need to fast before this test?
No, fasting is not required for this blood test. You can eat and drink normally before the test.
What does a high titer mean?
A higher titer generally indicates a stronger immune response, which may suggest a more significant or recent infection. However, the interpretation should be made by your healthcare provider in context with your symptoms and other test results.
Is this test painful?
The test involves a routine blood draw. You may feel a brief pinch or mild discomfort when the needle is inserted, but this is generally well-tolerated.
How long does it take to get results?
Results are typically available within a few days to a week, as the immune diffusion method requires careful analysis by specialized laboratory personnel.
Can a positive result mean I have aspergillosis?
A positive antibody test indicates exposure to Aspergillus flavus, but it does not definitively diagnose active disease. Your doctor will interpret the result along with your clinical symptoms, imaging studies, and other laboratory tests to make a proper diagnosis.
  1. 1
    Mayo Clinic - AspergillosisSource
  2. 2
    CDC - AspergillosisSource
  3. 3
    Lab Tests Online - Aspergillus AntibodySource

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