How do you test for Stenotrophomonas maltophilia?
Stenotrophomonas maltophilia (S. maltophilia) infection is usually suspected when there are symptoms of a bacterial infection along with certain risk factors . A small sample of body fluid such as blood, mucus, urine, or abdominal fluid will be cultured to confirm which bacteria is causing the infection.
How do you get Stenotrophomonas maltophilia?
Frequently found in more wet environments, but also animals, food, and water sources, such infections can impact organs and tissue alike. Sources of Stenotrophomonas maltophilia infections have included sink drains, hand-washing soap, contaminated disinfectants, nebulizers, and even hospital suction tubing.
Is Stenotrophomonas gram positive?
Stenotrophomonas maltophilia is an aerobic, nonfermentative, Gram-negative bacterium. It is an uncommon bacterium and human infection is difficult to treat.
How is Stenotrophomonas maltophilia treated?
The treatment of choice for Stenotrophomonas maltophilia is trimethoprim-sulfamethoxazole (SXT).
Where is stenotrophomonas commonly found?
S. maltophilia is an environmental bacterium found in aqueous habitats, including plant rhizospheres, animals, foods, and water sources. Infections of S. maltophilia can occur in a range of organs and tissues; the organism is commonly found in respiratory tract infections.
Does stenotrophomonas need isolation?
Although respiratory tract colonisation does not appear to have adverse implications, the isolation of Stenotrophomonas maltophilia indicates a severely compromised host with a high likelihood of mortality attributable to the underlying disease processes.
Is there a cure for Stenotrophomonas maltophilia in humans?
Stenotrophomonas maltophilia clinical isolates on McConkey agar. Stenotrophomonas maltophilia is an aerobic, nonfermentative, Gram-negative bacterium. It is an uncommon bacterium and human infection is difficult to treat.
Which is the type species of Stenotrophomonas maltophilia?
Initially classified as Bacterium bookeri, then renamed Pseudomonas maltophilia, S. maltophilia was also grouped in the genus Xanthomonas before eventually becoming the type species of the genus Stenotrophomonas in 1993. S. maltophilia is slightly smaller (0.7–1.8 × 0.4–0.7 μm) than other members of the genus.
How is s.maltophilia related to Pseudomonas aeruginosa?
S. maltophilia frequently co-occurs and forms multispecies biofilms with Pseudomonas aeruginosa. S. maltophilia substantially influences the architecture of P. aeruginosa structures, causing development of extended filaments. These changes arise due to diffusible signalling factor encoded by S. maltophilia.
Why is s.maltophilia naturally resistant to antibiotics?
S. maltophilia is naturally resistant to many broad-spectrum antibiotics (including all carbapenems) due to the production of two inducible chromosomal metallo-β-lactamases (designated L1 and L2). This makes treatment of infected patients very difficult.
