Pathogens
Proteus vulgaris

Proteus vulgaris

Precautions

Standard Precautions

Susceptibilities

General Information

Gram negative rod, of the Enterobacteriaceae family.

NOT an AmpC organism.

Produces class A cephalosporinase, a type of beta-lactamase.

Most commonly UTI, but also causes other nosocomial infections.

Proteus vulgaris species is more resistant to antimicrobials than Proteus mirabilis.

P. mirabilis may produce AmpC beta-lactamases and cause inducible resistance while P. vulgaris may produce CumA beta-lactamases which hydrolyzes cephalosporins.