Casu Marzu Cheese

Currently, the EU ban has been circumvented by means of another EU regulation. Casu marzu has been declared a "traditional" food (it has been made in the same manner for more than 25 years, and the recipe is thousands of years old) and it is therefore exempt from ordinary food hygiene regulations. The traditional method of making the cheese is explained by an official paper of the local government.
Health concerns
Larvae, if eaten alive (accidentally or otherwise), can pass through the digestive system alive (human stomach acids do not usually kill them) and live for some time in the intestines. This is referred to as an enteric myiasis. Cheese fly larvae are a leading cause of myiasis in humans, and are the insect most frequently found in the human intestine. The larvae can cause serious intestinal lesions as they attempt to bore through the intestinal walls. Symptoms include nausea, vomiting, pain in the abdomen, and bloody diarrhea. Living and dead larvae may pass in the stool.