👉 Plebeiibacterium is a type of bacteria that causes diarrhea in humans. It belongs to the genus "Pleiobacterium" and can be found in soil, water, and milk. The bacterium produces a white or yellowish-green disc-like organism called a plebiscite, which is commonly mistaken for fecal matter. Symptoms include abdominal pain, fever, chills, and diarrhea.