Etiology of childhood diarrhea in the northeast of Brazil: significant emergent diarrheal pathogens
| Autor: | Antonio Fernandes Filho, Lauro Santos Filho, Kinue Irino, Marina Baquerizo Martinez, Ana Carolina Ramos Moreno, Liana P.G. Montemor, S R T S Ramos, Tânia do Amaral Tardelli Gomes, Vanessa C. Tavares |
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| Rok vydání: | 2007 |
| Předmět: |
Microbiology (medical)
Shigellosis Campylobacteriosis medicine.disease_cause Microbiology Entamoeba histolytica Enteropathogenic Escherichia coli Feces Cell Line Tumor parasitic diseases Gram-Negative Bacteria medicine Cell Adhesion Escherichia coli Prevalence Giardia lamblia Humans Shigella Amoebiasis Serotyping Escherichia coli Infections Chi-Square Distribution biology Virulence Infant General Medicine medicine.disease biology.organism_classification Virology Diarrhea Infectious Diseases Case-Control Studies Diarrhea Infantile medicine.symptom Gram-Negative Bacterial Infections Brazil |
| Zdroj: | Diagnostic microbiology and infectious disease. 66(1) |
| ISSN: | 1879-0070 |
| Popis: | In a study conducted in Joao Pessoa, northeast of Brazil, 2344 Escherichia coli isolated from 290 infants with diarrhea and 290 healthy matched controls were analyzed for virulence traits. Enteroaggregative E. coli (EAEC) was the most prevalent pathogen associated to acute diarrhea. Based on the results of colony blot hybridization, serotyping, and HEp-2 cell adherence assays, strains were separated in categories as typical enteropathogenic E. coli (EPEC) (1.7%), atypical EPEC (a-EPEC) (9.3%), EAEC (25%), enterotoxigenic E. coli (10%), and enteroinvasive E. coli (EIEC) (1.4%). No enterohemorrhagic E. coli strains were isolated. Other enteropathogens were found, including Salmonella (7.9%), Shigella spp. (4.1%), thermophilic Campylobacter spp. (2.4%), Giardia lamblia (9.3%), and Entamoeba histolytica (5.8%). All enteropathogens were associated with diarrhea (P < 0.01). However, the association was lower for EPEC and EIEC (P < 0.03). Different pathogens associated with diarrhea may have been changing in Brazil where EAEC and a-EPEC seem to be the most prevalent pathogens among them. |
| Databáze: | OpenAIRE |
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