In 2018, 701 cases of severe invasive listeriosis were communicated to the Robert Koch Institute (RKI), which translates into 0.8 cases per 100,000 inhabitants. Most listeriosis illnesses reported are severe and are associated with blood poisoning, meningitis or miscarriages, for example. In 2018, the disease was fatal in 5% of cases. Elderly people, people with weakened immune defences, pregnant women and their new-born babies are particularly vulnerable. Listeria can be found in a large variety of foods of plant and animal origin. Cold or hot-smoked fish are often contaminated and are, therefore, also suspected of transmitting this illness. Other fish products and seafood eaten raw, such as sushi, sashimi and oysters or cured products such as graved fish, may also be affected. “Pregnant women, elderly people or those with weakened immune defences should only eat fish and seafood…