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Published on: December 10, 2016
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.
Abstract:
Clostridium difficile is commonly found in the intestine of infants without causing any disease. This study investigated the most important epidemiological features of C. difficile strains colonizing intestine of Jordanian infants. A total of 287 fecal samples were collected from infants admitted to the Jordan University Hospital (JUH) over the period of 2015. Samples were cultured for C. difficile and their growth was identified using microbiological culture and PCR. The overall C. difficile colonization rate among hospitalized and nonhospitalized infants was 37/287 (12.9%). Neonates were less colonized than other infants (8.7% verses 19.5%). Colonization of the infants with C. difficile toxigenic strains (TcdA and TcdB) was observed in 54% of the isolates, whereas those colonized with nontoxigenic strains were 46% and only one isolate was positive for binary toxin. Breast feeding of infants is a significant factor associated with decreased colonization with C. difficile. All C. difficile strains were susceptible to vancomycin and metronidazole, while high resistance rate to ciprofloxacin (78.4%) and less resistance rate to erythromycin (29.7%) were detected among the isolates. The results showed that 40.5% of the isolates carried mutated gyrA and gyrB genes which have cross-resistance to ciprofloxacin and moxifloxacin. This study represents useful epidemiological features about C. difficile colonizing intestine of infants living in a developing country.
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