Last reviewed: July 16, 2026. This article is for general information and does not replace advice from a licensed clinician.
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Editorial review: osvilt.com Editorial Team
Last reviewed: July 16, 2026
This medical article is based on current public medical sources and follows the osvilt.com Medical Review Policy. It is for general information only and does not replace professional care; see our Medical Disclaimer.
Alimentary-toxic aleukia is a historical term for severe illness after eating grain contaminated with Fusarium-related mycotoxins, especially trichothecenes such as T-2 toxin. It is rare, but the topic matters because moldy grain and mycotoxins can cause serious gastrointestinal, blood and immune effects.
Short answer: Do not eat moldy grain or flour products suspected of contamination. Severe vomiting, diarrhea, mouth/throat lesions, fever, bleeding, weakness or low white blood cells after suspected food exposure needs urgent medical care and food-safety reporting.
What changed in this update
The article was updated to connect alimentary-toxic aleukia with modern mycotoxin terminology and food-safety sources. It avoids home-treatment advice for suspected poisoning.
What causes it?
Historical outbreaks were associated with overwintered or mold-contaminated grain. FDA notes that T-2 and HT-2 toxins are produced by Fusarium molds and can occur in contaminated wheat, rye, oat and barley, especially when foods are not stored or dried properly.
Possible stages and symptoms
| Pattern | Possible symptoms | Why it matters |
|---|---|---|
| Early irritation | Burning mouth/throat, nausea, vomiting, diarrhea, abdominal pain. | Trichothecenes can irritate skin and intestinal mucosa. |
| Blood/immune effects | Fever, weakness, infections, low white blood cells, bleeding tendency. | Aleukia means severe reduction in white blood cells. |
| Severe poisoning | Hemorrhage, dehydration, shock, secondary infection. | Requires urgent hospital care. |
Diagnosis and public health response
Diagnosis depends on exposure history, symptoms, blood counts and food/toxin investigation. Suspected contaminated grain should be isolated, not shared, and reported to local food-safety or public health authorities when relevant.
Prevention
Discard visibly moldy grain or flour products, store grain dry, follow food-safety advisories and avoid trying to remove mold from bulk contaminated food. Mycotoxins may not be eliminated by normal cooking.
When to get medical care
Seek urgent medical care or poison-control advice after suspected contaminated grain exposure with vomiting, diarrhea, fever, mouth ulcers, bleeding, severe weakness, dehydration, confusion, low blood counts, immune suppression, pregnancy, child exposure or multiple people becoming ill after the same food.
FAQ
Is this the same as ordinary food poisoning?
No. It is linked to toxin exposure from contaminated grain, not simply bacteria in spoiled food.
Can cooking make moldy grain safe?
Do not rely on cooking. Some mycotoxins can persist and contaminated grain should be discarded or investigated.
Is alimentary-toxic aleukia common today?
It is rare in modern regulated food systems, but mycotoxin contamination remains a food-safety issue worldwide.
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