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Proteus mirabilis is a gram negative bacteria that is commonly associated with urinary tact infections, cystitis, diarrhea, wounds, and ear infections in dogs. The 4+ is the amount of bacteria seen on the culture or test 4+ is the largest amount with 1+ being the lowest amount. Whatever the source, this infection is significant. The natural habitat for this bacteria includes the intestinal tract, soil, water, and plants. It typically responds to ampicillin and aminoglycosides though it would be best to have a culture and susceptibility to see the specific kind of medication that the bacteria is most susceptible to.
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