Increase in tumour necrosis factor-alpha and a change in the lactate dehydrogenase isoenzyme pattern in plasma of workers exposed to aflatoxin-contaminated feeds.

Six types of animal-feed ingredients and swine mixed feeds from factories in northern Thailand were sampled for analysis of mycotoxins. Mycotoxins found in foodstuffs included aflatoxins, fumonisins, ochratoxins, T-2 toxin, vomitoxin and zearalenone. Samples of airborne dust generated while handling animal feed were collected and analysed to assess exposure of workers to aflatoxins.