Pseudo-outbreak of Pseudomonas putida Respiratory Infection Caused by Laboratory Contamination.

摘要

Pseudomonas putida is a gram-negative, aerobic bacterium that is a common inhabitant of soil, plants, and water. It has been found to cause septicemia in immu-nocompromised patients,and nosocomial transmission has been reported, associated with contaminated heparin or antiseptic solutions.Nevertheless, its isolation from clinical specimens is rare, and it is usually considered an environmental contaminant. P. putida has also been reported as a cause of pseudo-outbreaks in contaminated urine collection kits and contaminated commercial antifog solutions.6'7 We now report a pseudo-outbreak of P. putida respiratory infections, involving 5 patients, caused by an automated spiral plater.