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1393/4/29، جلد ۴۳، شماره ۷، صفحات -
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژههای فارسی مقاله |
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| عنوان انگلیسی |
Etiology of Acute Diarrhea in Tunisian Children with Emphasis on Diarrheagenic Escherichia coli: Prevalence and Identification of E. coli Virulence Markers |
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| چکیده انگلیسی مقاله |
Background: Diarrheal diseases can be caused by viral, bacterial and parasitic infections. This paper provides a preliminary image of diarrhea with regards to etiology and epidemiologic factors in Tunisian children less than five years of age. Methods : Overall, 124 diarrhoeal stools were collected from patients suffering from acute diarrhea and 54 stool samples from healthy children. All stools were examined for the presence of enteric pathogens. Results : In diarrheagenic children, 107 pathogenic bacteria were isolated (12 Salmonella spp. (9.7%) and 95 diarrheagenic Escherichia coli strains (76.6%): 29 enteroaggregative E.coli (EAEC) (23.4%), 15 enteroinvasive E.coli (EIEC) (12.1%), 17 enteropathogenic E.coli (EPEC) (13.7%), 26 enterotoxigenic E.coli (ETEC) (21%) and 2 enterohemoragic E.coli (EHEC) (1.6%). However, in the control group, 23 pathogenic E.coli strains were isolated (42.6%): 8 EAEC (14.8%), 12 EIEC (22.2%) and 3 EPEC (5.5%). Among diarrheagenic E.coli (DEC), only ETEC strains were significantly recovered from diarrheagenic children than from healthy controls ( P < 0.0003). Group A rotavirus was identified in 33.9% (n=42) of diarrheagenic children and in 11.1% among the control group (n=6). Concerning norovirus, 8.9% (n=11) of the samples collected from diarrheagenic children and 9.2% (n=5) from the control group were positive. The prevalence of rotaviruses and Salmonella spp were also significantly higher in patients with diarrhea than in controls ( P = 0.002 and P < 0.019, respectively). Finally, enteropathogenic parasites ( Entamoeba coli and cryptosporidium Oocystes ) were isolated from 4.8% and 9.2% of diarrheagenic and control children, respectively. Conclusion : These results provide baseline data about the relative importance of different enteropathogens in Tunisian children. Keywords : Enteric pathogens, Escherichia coli , Diarrhea, Children, Diagnosis, Tunisia |
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| کلیدواژههای انگلیسی مقاله |
Keywords : Enteric pathogens, Escherichia coli , Diarrhea, Children, Diagnosis, Tunisia |
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| نویسندگان مقاله |
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| نشانی اینترنتی |
http://ijph.tums.ac.ir/index.php/IJPH/article/viewArticle/6425 |
| فایل مقاله |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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| نوع مقاله منتشر شده |
Articles |
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