The crossword solution for the term FOOD POISONING BACTERIUM is SALMONELLA, which is a genus of rod-shaped gram-negative bacteria. SALMONELLA is one of the most common causes of food poisoning in humans, and can be found in a variety of foods including eggs, poultry, and seafood. It is also found in animal feces, which can contaminate food if proper hygiene is not practiced. Symptoms of SALMONELLA poisoning include nausea, vomiting, abdominal cramps, and diarrhea.