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Published on: October 22, 2013
Causative pathogens of severe diarrhea in children
Abdulrahman Y Ismaeel1, Afaf E Jamsheer, Ahmed Q Yousif
1Department of Microbiology, Immunology & Infectious Diseases, College of Medicine and Medical Sciences, Arabian Gulf University, PO Box 22979, Bahrain. ismaeel@agu.edu.bh
Insights
Rotavirus type A is the most common cause of diarrhea in children in Bahrain, followed by bacterial pathogens. Diagnostic tests for rotavirus are recommended for young children with diarrhea.
Area of Science:
- Pediatric Infectious Diseases
- Microbiology
- Virology
Background:
- Diarrhea is a significant health concern in children worldwide.
- Identifying enteropathogens is crucial for effective treatment and prevention.
Purpose of the Study:
- To investigate the prevalence of enteropathogens causing diarrhea in children in Bahrain.
- To determine the etiological agents responsible for pediatric diarrhea.
Main Methods:
- Fecal samples from 805 children were analyzed for parasites, bacteria (Salmonella, Shigella, Campylobacter, E. coli), adenovirus, and rotavirus.
- Various diagnostic techniques were employed, including microscopy, culture, latex agglutination, and reverse transcription-polymerase chain reaction (RT-PCR).
Main Results:
- Rotavirus was detected in 13.9% of samples, with Rotavirus A being the most prevalent (36.5% by RT-PCR).
- Bacterial pathogens were identified in 10.3% of samples, with Salmonella being most common.
- Adenovirus and parasites played a minor role.
Conclusions:
- Rotavirus type A is the predominant cause of infectious diarrhea in the studied pediatric population.
- Bacterial pathogens are the second most common etiological agents.
- Introduction of rotavirus diagnostic testing is recommended for children under three years old presenting with diarrhea.
Objectives:
To investigate the enteropathogens in children with diarrhea attending Salmaniya Medical Complex, Bahrain.
Methods:
Fecal samples from 805 children up to 15 years were examined for parasites, ova and cysts by direct wet preparation, formol-ether concentration and modified Ziehl-Neelsen stain, during the period November 1998 through to June 2000. Samples were cultured for Salmonella, Shigella, Campylobacter and Enteropathogenic Escherichia coli. Antibiotic sensitivity tests were performed on the relevant clinical isolates by agar disk diffusion method. All stools from children below 3 years of age (653 samples) were processed for adenovirus and rotavirus using a commercially available latex agglutination test (Diarlex). In addition, reverse transcription-polymerase chain reaction was performed on 200 randomly selected samples using oligonucleotide primers for Rotavirus A, B and C.
Results:
Four subjects were found positive for parasites. Eighty-three (10.3%) samples were found positive for Salmonella (46 isolates), Shigella (26 isolates), Campylobacter jejuni (7 isolates), and Enteropathogenic Escherichia coli (4 isolates). Rotavirus was found in 91 (13.9%) samples and 4 samples (0.6%) were found positive for adenovirus. Out of 200 samples examined by reverse transcription-polymerase chain reaction, 73 (36.5%) were positive for group A rotavirus.
Conclusions:
Rotavirus type A appeared to be the most common single agent in our pediatric population, followed by the classical bacterial pathogens. Adenovirus and parasites appeared to play a very minor role in diarrhea. Thus, we suggest the introduction of rotavirus diagnostic tests in microbiological examination of diarrheic stools of children below 3 years of age.
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