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Updated: Apr 18, 2026

Culturing and Maintaining Clostridium difficile in an Anaerobic Environment
Published on: September 14, 2013
Colonization versus carriage of Clostridium difficile
Curtis J Donskey1, Sirisha Kundrapu2, Abhishek Deshpande3
1Infectious Diseases Section, Louis Stokes Cleveland Veterans Affairs Medical Center, 10701 East Boulevard, Cleveland, OH 44106, USA.
Asymptomatic carriers of toxigenic Clostridium difficile strains are common. These individuals may be an underappreciated source of C. difficile transmission, necessitating a reevaluation of infection control strategies.
Area of Science:
- Microbiology
- Infectious Diseases
- Epidemiology
Background:
- Toxigenic Clostridium difficile strains are frequently carried asymptomatically in healthcare settings and the community.
- Current infection control measures primarily target symptomatic patients, potentially overlooking asymptomatic carriers.
Purpose of the Study:
- To provide an overview of Clostridium difficile colonization, including its pathogenesis and epidemiology.
- To review evidence supporting the role of asymptomatic carriers in Clostridium difficile spore shedding and transmission.
- To examine practical strategies for preventing transmission from asymptomatic carriers.
Main Methods:
- Literature review of studies on Clostridium difficile colonization, pathogenesis, epidemiology, and transmission.
- Analysis of evidence regarding spore shedding by asymptomatic carriers.
- Examination of infection control practices and prevention strategies.
Main Results:
- Asymptomatic carriage of toxigenic Clostridium difficile is prevalent.
- Evidence indicates that asymptomatic carriers shed Clostridium difficile spores, contributing to environmental contamination and transmission.
- Existing infection control practices may not adequately address transmission from asymptomatic individuals.
Conclusions:
- Asymptomatic Clostridium difficile carriers represent a significant, yet often overlooked, reservoir for transmission.
- Effective infection control requires strategies that consider and mitigate transmission from asymptomatic carriers.
- Further research and implementation of targeted prevention measures are crucial to control Clostridium difficile spread.
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