Impact of Some Ecological Factors on Fecal Contamination of Drinking Water by Diarrheagenic Antibiotic-Resistant Escherichia coli in Zagazig City, Egypt
| Autor: | Maha Kamal Gohar, Amal H Atta, Ahmed Elsadek Fakhr |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Microbiology (medical) Veterinary medicine Article Subject Antibiotic sensitivity 030106 microbiology Virulence 010501 environmental sciences Biology Contamination medicine.disease_cause 01 natural sciences Population density Microbiology QR1-502 Fecal coliform 03 medical and health sciences Diarrhea Antibiotic resistance medicine medicine.symptom Escherichia coli Research Article 0105 earth and related environmental sciences |
| Zdroj: | International Journal of Microbiology, Vol 2016 (2016) International Journal of Microbiology |
| ISSN: | 1687-918X |
| DOI: | 10.1155/2016/6240703 |
| Popis: | Fecal contamination of drinking water is a major health problem which accounts for many cases of diarrhea mainly in infants and foreigners. This contamination is a complex interaction of many parameters. Antibiotic resistance among bacterial isolates complicates the problem. The study was done to identify fecal contamination of drinking water by Diarrheagenic Antibiotic-ResistantEscherichia coliin Zagazig city and to trace reasons for such contamination, three hundred potable water samples were investigated forE. coliexistence. Locations ofE. colipositive samples were investigated in relation to population density, water source, and type of water pipe. SixteenE. colistrains were isolated. Antibiotic sensitivity was done and enterotoxigenic, enteropathogenic, and enterohaemorrhagic virulence genes were investigated by PCR. Probability of fecal contamination correlated with higher population density, with increased distance from Zagazig water plant, and with asbestos cement water pipes. Resistance to at least one antimicrobial drug was found in all isolates. Virulence genes were detected in a rate of 26.27%, 13.13%, 20%, 6.67%, and 33.33% for LT, ST, stx1, stx2, and eae genes, respectively. This relatively high frequency of fecal contamination points towards the high risk of developing diarrhea by antibiotic resistant DEC in low socioeconomic communities particularly with old fashion distribution systems. |
| Databáze: | OpenAIRE |
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