Aerobic gram negative rod; P. mirabilis, P. myxofaciens, P. vulgaris. They swarm on the plate.
Part of normal flora. Also found in sewage. P. mirabilis is in water.
Likes to help cause struvite renal stones by altering pH of urine by alkalinization of the urine due to urease enzyme which splits urea into ammonia and carbon dioxide.
The cell wall O-antigenlike OX-2, OX-19, OX-k cross react with several species of Rickettsiae and are used for the Weil-Felix reaction.
Relevant links to my Medscape blog
Last update: 05/05/18