Stenotrophomonas maltophilia

Valeria Fabre, M.D.

MICROBIOLOGY

Non-fermenting Gram-negative rod [Fig], easily grown on standard media.
- Previously referred to as Pseudomonas maltophilia.
Ubiquitous organism: found in water, soil and plants.
Considered low virulence and frequent colonizer of body fluids, especially in patients exposed to high-intensity courses of antibiotics.
Environmental and clinical isolates often exhibit multiple antibiotic resistance.
S. maltophila tends to adhere and form biofilms to catheters and prosthetic devices.

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