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Published on: November 7, 2018
Bacterial enteropathogens and risk factors associated with childhood diarrhea
Abdel Moati Kh Al Jarousha1, Mahmoud A El Jarou, Iyad A El Qouqa
1Laboratory Medicine Department, Al Azhar University, P.O. Box 1277, Gaza, Palestine. Amoati2007@yahoo.com
Insights
Bacterial enteropathogens, particularly Enterohemorrhagic E. coli, are significant causes of childhood diarrhea. Malnutrition is a key risk factor, and ampicillin/amoxicillin are ineffective treatments.
Area of Science:
- Pediatric Infectious Diseases
- Microbiology
- Public Health
Background:
- Diarrheal diseases remain a major cause of childhood morbidity and mortality globally.
- Identifying specific bacterial enteropathogens and their risk factors is crucial for effective management.
Purpose of the Study:
- To determine the common bacterial causes of diarrhea in children.
- To identify associated risk factors and clinical signs.
- To assess antimicrobial susceptibility patterns of isolated pathogens.
Main Methods:
- Conventional cultural methods were used to analyze stool samples from children with diarrhea and matched controls.
- Data were collected between February 2006 and January 2007.
Main Results:
- Bacterial enteropathogens were identified in 31% of cases versus 8% of controls.
- Enterohemorrhagic E. coli (8.3%), Shigella spp. (6.7%), and Campylobacter jejuni (5%) were most frequent.
- Malnutrition was the primary independent risk factor (OR adjusted 8.37).
- Enteropathogens showed susceptibility to meropenem, ceftriaxone, amikacin, and ciprofloxacin, but resistance to ampicillin and amoxicillin.
Conclusions:
- Bacterial enteropathogens play a critical role in severe childhood diarrhea.
- Enterohemorrhagic E. coli is the predominant pathogen identified.
- Malnutrition is a significant risk factor for infection.
- Ampicillin and amoxicillin are not recommended for empirical treatment of acute diarrhea in this population.
Objective:
To investigate the etiology of bacterial enteropathogens causing diarrhea among children; to elucidate the risk factors, sign and symptoms involved in developing of infection; and to identify the antimicrobial susceptibility pattern.
Methods:
Stool samples from diarrheal cases with clinical diagnosis of gastroenteritis compared to matched controls, were examined for detection of bacterial enteropathogens by conventional cultural method from February 2006 through January 2007.
Results:
Ninety three of diarrheal cases comprising enteropathogen isolates. A recognized bacterial enteric pathogen was identified in 31% of the cases and 8% of the control group. The frequency of isolated enteropathogens from faeces of diarrheal cases was recorded in the following order, Enterohemorrhagic E. coli 8.3%, Shigella spp. 6.7%, Campylobacter jejuni 5%, Salmonella spp. 4%, Yersinia enterocolitica 2.7%, Aeromonas spp. 4.7%, and Plesiomonas spp. 1.3%. E.H.E coli, Shigella and Salmonella had shown a significant statistical association with diarrhea (p<0.05). Compared to matched uninfected control, multivariate analysis revealed that malnutrition status (OR adjusted 8.37; p<0.001) was the only independent factor associated with infection. Antibiotic susceptibility profile indicated that enteropathogens were generally susceptible to meropenem, ceftriaxone, followed by amikacin and ciprofloxacin. Almost all enteropathogens were resistant to ampicillin and amoxicillin.
Conclusions:
The results of this study emphasize the importance of bacterial enteropathogens in causing severe diarrhea in children. E.H.E. coli was the most predominant pathogen. Malnutrition was identified as the main independent risk factor associated with developing of infection. Ampicillin and amoxicillin should not be used as empirical treatment in acute diarrhea.
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