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J Water Health ; 20(7): 1064-1070, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35902988

RESUMO

Disruption of routine monitorization and chlorination of the water supply system during a week-long holiday led to a multi-organism gastroenteritis outbreak in a district with limited laboratory support. More than a 10-fold increase in patients with gastroenteritis was reported. Enteropathogenic Escherichia coli, Enteroaggregative E. coli, and norovirus were detected in human specimen samples. The main water tank and pipes were rusted; 13 out of the 19 water samples tested positive for total Coliform (1-920 colony-forming units (CFU)/100 ml) and E. coli (1-720 CFU/100 ml). Chlorine levels were below 0.2 ppm in seven of the nine samples. Information of 1,815 cases was obtained from the hospital records with a crude attack rate of 2.9%. Cases widespread in the district increased throughout the holiday, epidemic curve revealed a point-source outbreak. The case-control study revealed that consumption of drinking tap water and using it to clean vegetables/fruits were significantly associated with the illness. While drinking only bottled water had a protective effect against the illness. The culture technique showed that the water supply samples were positive for pathogenic bacteria. Upon decision in a multi-stakeholder meeting, the water tank was cleaned, and the Municipality initiated the renovation of the water supply system.


Assuntos
Água Potável , Gastroenterite , Estudos de Casos e Controles , Surtos de Doenças , Água Potável/microbiologia , Escherichia coli , Gastroenterite/epidemiologia , Humanos , Turquia/epidemiologia , Microbiologia da Água , Abastecimento de Água
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