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Infections Caused by Nonpigmented Serratia
Report of Seven Cases
- CHARLES W. MAGNUSON, M.D.; and
- HARRY R. ELSTON, M.S.
- Requests for reprints should be addressed to Charles W. Magnuson, M.D., Omaha Veterans Administration Hospital, Omaha, Neb. 68105.
Excerpt
Although nonchromogenic Serratia marcescens strains have long been known to exist, reports of their isolation from patients have been infrequent. As standard bacteriologic techniques are used to distinguish this organism from the more closely related enteric bacilli, they will be recognized more often in various clinical specimens. The organisms have been referred to in the past as Chromobacterium prodigiosum or Bacillus prodigiosus. They are actively motile, nonsporulating, gram-negative rods. Pigmented or unpigmented colonies may occur in cultures. Usually they are found in water, soil, or as contaminates in foods. In man and animals, they may exist as transitory inhabitants, and
This 100-word excerpt has been provided in the absence of an abstract.
Acknowledgment
We are indebted to Dr. H. W. McFadden, Jr., Professor and Chairman, Department of Medical Microbiology, University of Nebraska College of Medicine, for his aid in the preparation of this manuscript.
Summario in Interlingua
Es reportate septe casos de infection in humanos, causate per non-chromogene Serratia marcescens. Ben que le isolation de S. marcescens in varie materiales clinic non es infrequente, le rolo causal de iste orgenismo es frequentemente negligite, viste que illo es generalissimemente reguardate como un innocente saprophyto. Isto occure particularmente quando le organismo non produce un pigmento.
Le diagnose de infection per Serratia esseva rendite plus facile per le identification del organismo—in un numero de occasiones—in sol o multiple specimens. Iste identification esseva particularmente importante quando le organismo esseva isolate in culturation pur. Equalmente importante esseva le constatation concomitante de un infection clinic e un appropriate responsa de anticorpore in le subjecto in question.
Le infection, in le casos del presente serie, interessava primarimente le systema genito-urinari, le pelle, e le vias aeree. Le majoritate del casos esseva leve e auto-limitatori. Un patiente, nonobstante, habeva bacteriemia, e un altere diveloppava un infection chronic. Omne le patientes se trovava, ante le infection, in un stato de debilitate, e un numero significative de illes habeva recipite antibioticos. Il es probabile que omne le infectiones esseva de origine nosocomial. Le infectiones que interessava le systema genito-urinari esseva precedite de uropathia obstructive con demonstrabile alterationes in le vias genito-urinari. Tests de sensibilitate a disco revelava resistentia de non-pigmentate Serratia al majoritate del antibioticos usate, sed susceptibilitate esseva constatate quando neomycina o kanomycina esseva testate.
Le proprietates bacteriologic de iste non-pigmentate organismo es describite. Esseva trovate que su identification es possibile per medio de varie tests biochimic.
Un studio epidemiologic pare indicar que le organismo es transmittite per contaminate particulas de aere.
Article and Author Information
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From the Veterans Administration Hospital, Omaha, Neb.
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- Received January 17, 1966.
- Accepted May 10, 1966.
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