Proteus mirabilis (pictured here, second from right) is a glucose positive, lactose negative, sulfur reducing enteric. If the nitrate broth turns red (tubes pictured in the center) after nitrate I and ...

Figure 1: Ascending urinary tract infection and Proteus mirabilis virulence factors. Figure 2: The mannose-resistant Proteus-like fimbrial operon: organization and phase variation.