Propionibacterium

**Definition:** A genus of gram-positive, rod-shaped bacteria whose cells occur singly, in pairs or short chains, in V or Y configurations, or in clumps resembling letters of the Chinese alphabet. Its organisms are found in cheese and dairy products as well as on human skin and can occasionally cause soft tissue infections.

**Tree numbers:** - B03.510.024.990.600 - B03.510.460.400.400.600.600