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T2 toxin is a naturally occurring mycotoxin produced by various species of the fungus Fusarium sporotrichioides and related Fusarium species. It commonly occurs in agricultural commodities such as cereals, grains, and animal feed. Because of its potent biological activity, T2 toxin represents a serious food and feed safety concern worldwide.

In addition, T2 toxin belongs to the trichothecene group of mycotoxins and shows strong cytotoxic and immunosuppressive effects. Therefore, exposure through contaminated food or feed can significantly affect both human and animal health. It is often assessed together with its closely related compound HT2 toxin, since combined measurement of T2/HT2 provides a more accurate indication of overall trichothecene contamination in agricultural products.

Dietary exposure to T2/HT2 toxins leads to a range of adverse health effects. In humans, it may cause immune suppression, gastrointestinal irritation, and general toxicity, especially after prolonged or high-level exposure. In livestock, however, effects often appear more severe. Animals may show reduced feed intake, poor weight gain, lower productivity, and increased susceptibility to disease. As a result, both animal welfare and agricultural economics can be significantly affected.

Cereal-based commodities such as wheat, barley, oats, and maize are particularly vulnerable to contamination. Environmental conditions like temperature, humidity, and rainfall during crop growth promote fungal proliferation. Furthermore, improper storage after harvest can increase toxin development, making post-harvest handling a critical control point.

Because of their stability and widespread occurrence, T2/HT2 toxins remain a key focus in global food safety monitoring programmes. Consequently, laboratories rely on sensitive analytical methods to detect low-level contamination across complex food and feed matrices. Routine surveillance helps ensure compliance with regulatory limits and protects both consumer and animal health.

Overall, effective management of T2/HT2 contamination depends on consistent monitoring, good agricultural practices, and proper storage conditions. Together, these measures help safeguard the food supply chain and maintain the quality of cereal-based products for human and animal consumption.