Pathogens
Stenotrophomonas maltophilia

Stenotrophomonas maltophilia

Precautions

Standard Precautions

General Information

Aerobic non-fermenting gram negative rod

Must distinguish colonization from clinically significant infection.

May be acquired from diverse environmental sources (e.g. tap water).

Bronchiectatics may be colonized (i.e. CF patients).

Most common reason for isolation is colonization of the respiratory tract.

Most common true infections:

  • Blood stream infection (usually from vascular catheter)
  • Pneumonia

Other manifestations rare:

  • Endocarditis
  • Sinusitis
  • Cellulitis

True pneumonia more likely in ICU and oncology patients, those with advanced age and after/during treatment with broad spectrum antimicrobial use.