The large liver fluke, is a parasite that attacks the livers of beef cattle. The only way to find the 1-inch wide and 2- to 3-inch long, reddish-brown, leech-like liver flukes are found after a cow has died or been slaughtered. U.S. Department of Agriculture regulations state the liver must be condemned and removed from the food supply if the fluke is found. The rest of the carcass can be processed as meat products.
Flukes are not to be confused with tapeworms, pinworms, roundworms, whipworms, or hookworms, fleas and ticks which can all be found in/on farmed animals as well. But not to worry... the meat industry has drugs for these too! But with all the chemicals fed to animals to control these nasty little organisms, one must wonder - is it not better to just go vegan?