Sources of uncertainty	Directiona
Uncertainties in the analytical measurement of T‐2 and HT‐2 in foods	+/−
Effect of food processing	+/−
Use of highest and lowest toxin level estimates in the exposure estimations	+/−
Limited data on exposure for infants	+/−
Limited data on exposure for vegetarians	+/−
No data on absorption, metabolism and elimination of T‐2 and HT‐2 toxins in humans	+/−
Lack of information on the contribution of the toxicity of HT‐2 toxin and other metabolites to overall toxicity	+/−
Limited data on combined effects with other mycotoxins or other toxic substances in food	+/−

^a

The ‘+’ and ‘−’ signs indicate only in which direction uncertainty affects the risk assessment.

+ = uncertainty with potential to cause overestimation of exposure/risk.

− = uncertainty with potential to cause underestimation of exposure/risk.