Penitrem-A is found on many types of spoiled food, including, bread, dairy products, and nuts. This type of poisoning is relatively common in dogs, with immediate symptoms of vomiting, tremors, and fever. Without treatment, high doses can cause fatal seizures. Other toxic mycotoxins can also be present including aflatoxins produced by aspergillus fungi. These mycotoxins are metabolized in the liver and may cause hepatocellular necrosis (liver cell death) which will affect liver function giving dogs a yellowish, jaundiced appearance. Fusarium mold containing trichothecene mycotoxins can also sometimes be found on old or contaminated pet food.