Lab test
Corn Smut (Ustilago) Allergy Test - Spores
A corn smut-specific IgE blood test measures antibodies the immune system may produce against spores of the corn smut fungus, also known as Ustilago.
- Typical price
- From $49
- Results
- 1-3 business days
- Preparation
- See preparation notes below
- Sample
- Blood draw or sample collection at a local center
About this test
A corn smut-specific IgE blood test measures antibodies the immune system may produce against spores of the corn smut fungus, also known as Ustilago. It is a screening tool for possible fungal spore sensitization and is not a diagnosis on its own. A healthcare provider may order it when someone has allergy-like symptoms that could be linked to exposure to this fungus around corn crops, when reviewing a broader mold panel, or when symptoms occur without a clear trigger. Results are interpreted with symptom history.
What this test measures
- Corn smut spore-specific IgE Antibodies produced against corn smut fungus (Ustilago) spores; used to assess sensitization to this fungus.
Who this test may be right for
- People with allergy-like respiratory symptoms after exposure around corn crops
- Individuals being evaluated for possible fungal spore sensitization
- Those whose symptoms occur near agricultural or stored-crop environments
- People with asthma or eczema that may be aggravated by mold or fungal exposure
- Anyone whose provider wants a corn smut marker on a mold panel
Before your visit
- No fasting is required for this IgE allergy test
- The blood sample can be collected at any time of day
- Tell the healthcare provider about any medications you take
- No special diet is needed before collection
Understanding your results
The corn smut spore-specific IgE result is reported as a numeric level or class. A value above the reporting threshold may indicate sensitization to corn smut fungal spores, but sensitization does not always lead to symptoms. A low or undetectable level makes reactivity to this fungus less likely without fully ruling it out. Fungal spores can share proteins with other molds, so a provider may consider cross-reactivity when interpreting results. Discuss results with a healthcare provider before making changes.
Order this test online
- Buy online in a few minutes - no doctor's visit needed for most tests.
- Sample collection at a patient service center near you.
- Results are typically ready within 1-3 business days.
- Secure, lab-reviewed results delivered to your account.
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Questions people ask
What is corn smut fungus?
Corn smut, also called Ustilago, is a fungus that grows on corn. The corn smut spore-specific IgE test measures antibodies the immune system may produce against its spores.
Does this test require fasting?
No. The corn smut spore-specific IgE test needs no fasting and can be collected at any time.
Can corn smut sensitization relate to other molds?
Fungal spores can share similar proteins, so a healthcare provider may consider possible cross-reactivity between corn smut spore-specific IgE and markers for other molds.
Who analyzes the sample?
The blood sample is analyzed by a CLIA-certified lab, and results are typically available within 1-3 business days.
What does the Corn Smut (Ustilago) Allergy Test - Spores measure?
This blood allergy IgE test will determine if you are allergic to corn smut fungus (also known as Tilletia tritici/Ustilago) spores.
Do I need to fast before this test?
Follow the lab's instructions.
How long do results take?
Most Corn Smut (Ustilago) Allergy Test - Spores results are released in 1-3 business days. Specialty testing can take longer.
Is this test right for me?
This page is educational and not medical advice. Talk to a licensed healthcare provider about which tests fit your situation.
LabBookings is an independent directory. We compare test details and pricing information, but we are not a laboratory and we do not perform testing or provide medical advice. Always talk to a licensed healthcare provider about your results and treatment.
Laboratory services are provided by independent, CLIA-certified testing partners. Availability, pricing, and turnaround times can vary by location and are confirmed at checkout.