Stenotrophomonas maltophilia (S. maltophilia)
is a type of bacterium that is found in various natural environments (such as soil, water and plants), but also occurs in the hospital environment and may cause infections including those that affect the bloodstream, respiratory tract, urinary tract and surgical-sites. Infections are uncommon and typically only occur in individuals with severely impaired immune systems. Risk factors in hospitalized individuals may include prior exposure to antimicrobials, mechanical ventilation, and prolonged hospitalization. It typically grows and spreads through medical devices, hospital fluids (such as irrigation solutions or IV fluids) or patient secretions, but does not readily spread between patients. S. maltophilia does not respond to many antibiotics but most strains are susceptible to co-trimoxazole treatment. Source: Genetic and Rare Diseases Information Center (GARD), supported by ORDR-NCATS and NHGRI.