In addition, a toxin called Toxin A is the most toxic product produced by Pseudomonas . The effect of this enzymatic activity is the loss of host cell protein synthesis capability. This mechanism is identical to that produced by diphtheria toxin. Pseudomonas has an antiphagocytic polysaccharide slime layer and many strains produce pigments, some which are fluorescent. Pseudomonas produces localized infections following surgery or burns.
Localized infections can lead to generalized, and occasionally fatal, bacteremia.
Pseudomonas is also responsible for a number of nosocomial infections including urinary tract infections following catheterization, pneumonia resulting from contaminated respirators, and eye and ear infections. Pseudomonas can be found in the soil, in water, or on vegetation. Diagnosis is very difficult. Pseudomonas can be easily isolated on blood agar. They often give off a fruity odor and some may produce fluorescent pigments.