Epidemiological Features of Clostridium difficile Colonizing the Intestine of Jordanian Infants

Eman N Abu-Khader1, Eman F Badran2, Asem A Shehabi1

  • 1Department of Pathology-Microbiology and Forensic Medicine, The University of Jordan, School of Medicine, Amman, Jordan.

Insights

Clostridium difficile colonization in Jordanian infants was 12.9%, with toxigenic strains prevalent. Breastfeeding reduced colonization, while resistance to ciprofloxacin was high.

Area of Science:

  • Microbiology
  • Epidemiology
  • Pediatrics

Background:

  • Clostridium difficile is a common gut bacterium in infants.
  • Understanding C. difficile epidemiology in infants is crucial, especially in developing countries.

Purpose of the Study:

  • To investigate the epidemiological characteristics of C. difficile strains colonizing the intestines of Jordanian infants.
  • To determine colonization rates, identify toxigenic potential, and assess antibiotic resistance patterns.

Main Methods:

  • Collected 287 fecal samples from infants at Jordan University Hospital in 2015.
  • Utilized microbiological culture and PCR for C. difficile identification.
  • Assessed toxin production (TcdA, TcdB, binary toxin) and antibiotic susceptibility.

Main Results:

  • Overall C. difficile colonization rate was 12.9% (37/287).
  • Neonates had lower colonization (8.7%) than older infants (19.5%).
  • 54% of isolates were toxigenic (TcdA/TcdB), 46% nontoxigenic.
  • High resistance to ciprofloxacin (78.4%) and erythromycin (29.7%) observed.
  • 40.5% carried mutated gyrA/gyrB genes, conferring cross-resistance to fluoroquinolones.

Conclusions:

  • Breastfeeding is associated with decreased C. difficile colonization.
  • Significant antibiotic resistance, particularly to ciprofloxacin, was found in infant C. difficile isolates.
  • This study provides valuable epidemiological data on C. difficile in infants from a developing country.

Related Concept Videos

Anatomy of the Intestines01:23

Anatomy of the Intestines

Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
88.0K
Introduction to Epidemiology01:26

Introduction to Epidemiology

Epidemiology, known as the cornerstone of public health, involves studying the distribution and determinants of health-related events in defined populations and applying these insights to control health issues. This is essential for understanding how diseases spread, identifying populations at greater risk, and implementing measures to control or prevent outbreaks. Epidemiology addresses not only infectious diseases but also non-communicable conditions like cancer and cardiovascular disease,...
2.0K
Causality in Epidemiology01:21

Causality in Epidemiology

Causality or causation is a fundamental concept in epidemiology, vital for understanding the relationships between various factors and health outcomes. Despite its importance, there's no single, universally accepted definition of causality within the discipline. Drawing from a systematic review, causality in epidemiology encompasses several definitions, including production, necessary and sufficient, sufficient-component, counterfactual, and probabilistic models. Each has its strengths and...
1.7K
The Colonization of Land02:22

The Colonization of Land

Changes in the environment of the early Earth drove the evolution of organisms. As prokaryotic organisms in the oceans began to photosynthesize, they produced oxygen. Eventually, oxygen saturated the oceans and entered the air, resulting in an increase in atmospheric oxygen concentration, known as the oxygen revolution approximately 2.3 billion years ago. Therefore, organisms that could use oxygen for cellular respiration had an advantage. More than 1.5 years ago, eukaryotic cells and...
37.9K
Study Designs in Epidemiology01:20

Study Designs in Epidemiology

Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
1.1K
Confounding in Epidemiological Studies01:27

Confounding in Epidemiological Studies

Confounding in statistical epidemiology represents a pivotal challenge, referring to the distortion in the perceived relationship between an exposure and an outcome due to the presence of a third variable, known as a confounder. This variable is associated with both the exposure and the outcome but is not a direct link in their causal chain. Its presence can lead to erroneous interpretations of the exposure's effect, either exaggerating or underestimating the true association. This...
861