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Bacterial Gastroenteritis01:18

Bacterial Gastroenteritis

Bacterial gastroenteritis, characterized by diarrhea, abdominal cramps, and vomiting, is often caused by ingestion of contaminated food or water and is frequently associated with pathogenic Escherichia coli strains. These microbes exploit two principal mechanisms to inflict disease.Shiga toxin–producing E. coli, also referred to as STEC—notably O157:H7—release Shiga toxins that target ribosomes, blocking protein synthesis. The B subunit of the toxin binds the host glycolipid receptor...
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Bacterial Toxins

Bacterial toxins are sophisticated virulence factors that enable pathogenic bacteria to interact with, invade, and damage host tissues. These toxins fall broadly into two types: protein exotoxins, which are secreted into the environment and target specific host receptors, and lipopolysaccharide endotoxins, which are structural components of the bacterial outer membrane released primarily during bacterial lysis or membrane shedding. Exotoxins generally act more selectively, binding to cell...
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Healthcare Associated Infections I: Iatrogenic, Exogenic and Endogenic

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Dysbiosis of the Gut Microbiota

The human gut microbiome includes a diverse array of microbial species, including beneficial commensals and opportunistic pathogens, which interact to support host health. These microbes contribute to essential functions such as nutrient metabolism, immune system modulation, and maintenance of intestinal barrier integrity. However, disruptions to this equilibrium—referred to as dysbiosis—can have widespread physiological consequences.Dysbiosis is often characterized by reduced microbial...
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Related Experiment Video

Updated: Jun 24, 2026

Cefoperazone-treated Mouse Model of Clinically-relevant Clostridium difficile Strain R20291
06:51

Cefoperazone-treated Mouse Model of Clinically-relevant Clostridium difficile Strain R20291

Published on: December 10, 2016

[Re-emergent etiologies: Clostridium difficile].

Anca Mare1, A Man, Felicia Toma

  • 1Universitatea de Medicină şi Farmacie Târgu-Mureş, Disciplina de Microbiologie.

Bacteriologia, Virusologia, Parazitologia, Epidemiologia (Bucharest, Romania : 1990)
|March 31, 2009
PubMed
Summary
This summary is machine-generated.

Clostridium difficile-associated disease (CDAD) is a serious infection with increasing rates and severity. Preventing its spread through staff education, proper diagnostics, and early treatment is crucial for reducing patient harm.

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A Protocol to Characterize the Morphological Changes of Clostridium difficile in Response to Antibiotic Treatment
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A Protocol to Characterize the Morphological Changes of Clostridium difficile in Response to Antibiotic Treatment

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Last Updated: Jun 24, 2026

Cefoperazone-treated Mouse Model of Clinically-relevant Clostridium difficile Strain R20291
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Cefoperazone-treated Mouse Model of Clinically-relevant Clostridium difficile Strain R20291

Published on: December 10, 2016

A Protocol to Characterize the Morphological Changes of Clostridium difficile in Response to Antibiotic Treatment
12:58

A Protocol to Characterize the Morphological Changes of Clostridium difficile in Response to Antibiotic Treatment

Published on: May 25, 2017

Area of Science:

  • Infectious Diseases
  • Healthcare Epidemiology
  • Microbiology

Background:

  • Clostridium difficile-associated disease (CDAD) presents a spectrum of illness, from mild diarrhea to life-threatening sepsis.
  • Increasing incidence and severity of CDAD suggest potential influence from emerging C. difficile strains.
  • Healthcare-associated transmission is primarily through the fecal-oral route, involving contaminated hands of staff and patients, and the patient care environment.

Purpose of the Study:

  • To highlight the growing threat of Clostridium difficile-associated disease.
  • To underscore the importance of infection control measures in healthcare settings.
  • To emphasize the need for improved diagnostics and treatment strategies.

Main Methods:

  • Review of current literature on Clostridium difficile epidemiology and transmission.
  • Analysis of factors contributing to the increasing rates and severity of CDAD.
  • Discussion of preventative strategies including staff education, diagnostics, and treatment.

Main Results:

  • CDAD poses a significant and escalating risk in healthcare settings.
  • The fecal-oral route, involving hands and environment, is the primary transmission pathway.
  • Emerging strains may contribute to increased disease severity.

Conclusions:

  • Effective control of CDAD requires a multi-faceted approach.
  • Comprehensive staff education on C. difficile prevention is essential.
  • Timely diagnosis, prompt treatment, and stringent infection control are vital to reduce CDAD morbidity and mortality.