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Pseudo-Outbreak of Clostridium sordellii Infection following Probable Cross-Contamination in a Hospital Clinical Microbiology Laboratory

  • David M. Aronoff (a1), Tennille Thelen (a1), Seth T. Walk (a1), Kathleen Petersen (a2), Julia Jackson (a2), Sylvia Grossman (a3), James Rudrik (a4), Duane W. Newton (a3) and Carol E. Chenoweth (a1)...


We report a pseudo-outbreak of infection caused by Clostridium sordellii, an uncommon human pathogen. The pseudo-outbreak involved 6 patients and was temporally associated with a change by the clinical microbiology laboratory in the protocol of handling anaerobic culture specimens. All isolates were genetically indistinguishable from a laboratory reference strain used for quality control.


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4618-C Medical Sciences BIdg II, 1150 W Medical Center Dr, Ann Arbor, MI 48109-5623, (


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