Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Endemic gastrointestinal illness and change in raw water source and drinking water production – A population-based prospective study
Highlights Improved efficiency in drinking water treatment may reduce gastrointestinal illness. SMS is a data collection tool that is easy to use, with a high response rate. Reduced gastrointestinal illness was observed among children, but not in adults.
Abstract There are indications that drinking water may contribute to endemic gastrointestinal illness (GII) even when the drinking water quality meets current standards, but the knowledge is limited. In this population-based prospective study, we assessed if changes in municipal drinking water production affected the GII incidence, by collecting self-reported GII episodes among the population in two municipalities during calendar time-specific inter-annual periods. About 2600 adults in central Sweden and 2600 adults (including 700 households with children aged 0–9 years) in Southwest Sweden, were followed during a baseline and a follow-up period in 2012–2016. Monthly reports of episodes and symptoms of GII were collected by SMS. The following drinking water related changes were assessed: Change 1 (adults); a municipality with a groundwater treatment, changed to a different groundwater source with UV treatment; Change 2 (adults); a municipality with a surface water treatment changed to a groundwater source with UV treatment; and Change 3a (adults) and 3b (children): a municipality with a surface water treatment changed to a new surface water source, having a treatment with a higher pathogen reduction. We observed no evidence that changes in raw water source and/or improved pathogen removal in the drinking water treatment affected the risk of GII among adults. Among children aged 0–9 years participating in Change 3b, we observed a 24% relative risk reduction in GII incidence. These results suggest that improved water treatment may reduce the disease burden of GII in children even in settings in which water treatment efficacy meets current quality standards.
Endemic gastrointestinal illness and change in raw water source and drinking water production – A population-based prospective study
Highlights Improved efficiency in drinking water treatment may reduce gastrointestinal illness. SMS is a data collection tool that is easy to use, with a high response rate. Reduced gastrointestinal illness was observed among children, but not in adults.
Abstract There are indications that drinking water may contribute to endemic gastrointestinal illness (GII) even when the drinking water quality meets current standards, but the knowledge is limited. In this population-based prospective study, we assessed if changes in municipal drinking water production affected the GII incidence, by collecting self-reported GII episodes among the population in two municipalities during calendar time-specific inter-annual periods. About 2600 adults in central Sweden and 2600 adults (including 700 households with children aged 0–9 years) in Southwest Sweden, were followed during a baseline and a follow-up period in 2012–2016. Monthly reports of episodes and symptoms of GII were collected by SMS. The following drinking water related changes were assessed: Change 1 (adults); a municipality with a groundwater treatment, changed to a different groundwater source with UV treatment; Change 2 (adults); a municipality with a surface water treatment changed to a groundwater source with UV treatment; and Change 3a (adults) and 3b (children): a municipality with a surface water treatment changed to a new surface water source, having a treatment with a higher pathogen reduction. We observed no evidence that changes in raw water source and/or improved pathogen removal in the drinking water treatment affected the risk of GII among adults. Among children aged 0–9 years participating in Change 3b, we observed a 24% relative risk reduction in GII incidence. These results suggest that improved water treatment may reduce the disease burden of GII in children even in settings in which water treatment efficacy meets current quality standards.
Endemic gastrointestinal illness and change in raw water source and drinking water production – A population-based prospective study
Säve-Söderbergh, Melle (Autor:in) / Åkesson, Agneta (Autor:in) / Simonsson, Magnus (Autor:in) / Toljander, Jonas (Autor:in)
10.02.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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