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Updated: Aug 5, 2026
12:58
A Protocol to Characterize the Morphological Changes of Clostridium difficile in Response to Antibiotic Treatment
Published on: May 25, 2017
The Changing Epidemiology of Clostridioides difficile Infection
Kanika Sehgal1, Paul Feuerstadt2
1Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA.
Gastroenterology Clinics of North America
|July 31, 2026
Summary
Clostridioides difficile infection (CDI) rates surged due to new strains and risk factors but are now declining in hospitals. However, community-associated CDI remains a significant and growing public health concern.
Area of Science:
- Infectious Diseases
- Epidemiology
- Public Health
Background:
- Clostridioides difficile infection (CDI) epidemiology has significantly changed over the last 30 years.
- A surge in incidence and severity occurred in the early 2000s, linked to hypervirulent strains, antibiotic use, aging populations, and diagnostics.
- Community-associated CDI (CA-CDI) emerged as a distinct entity during this period.
Purpose of the Study:
- To analyze the evolving epidemiology of Clostridioides difficile infection.
- To identify key drivers of CDI incidence and severity changes.
- To highlight current trends and future needs in CDI prevention and treatment.
Main Methods:
- Review of epidemiological data over three decades.
- Analysis of factors contributing to CDI incidence and severity.
- Assessment of trends in hospital-acquired versus community-associated CDI.
Main Results:
- Hospital-acquired CDI incidence and severity have been curbed by improved infection control and antimicrobial stewardship.
- Community-associated CDI (CA-CDI) now constitutes about half of all CDI cases and is increasing.
- Despite progress, CA-CDI presents an ongoing challenge affecting a different patient demographic.
Conclusions:
- Continued surveillance for CDI is essential.
- Targeted prevention strategies are needed, particularly for CA-CDI.
- Enhanced access to effective treatments for CDI is crucial.
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