Oyster farms in Normandy are facing a ban on marketing and release for human consumption due to reports of food poisoning and acute gastroenteritis symptoms. The affected shellfish come from the Grandcamp Maisy and Géfosse Fontenay sectors, and the prefecture is advising people not to consume them and to return them to the points of sale. This ban also includes prohibiting recreational shellfish fishing, and oyster farmers in the Arcachon basin are already seeking compensation for their estimated losses of 8 million euros.