Estimating the number of cases of acute gastrointestinal illness (AGI) associated with Canadian municipal drinking water systems
The estimated burden of endemic acute gastrointestinal illness (AGI) annually in Canada is 20·5 million cases. Approximately 4 million of these cases are domestically acquired and foodborne, yet the proportion of waterborne cases is unknown. A number of randomized controlled trials have been complet...
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Veröffentlicht in: | Epidemiology and infection 2016-05, Vol.144 (7), p.1371-1385 |
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description | The estimated burden of endemic acute gastrointestinal illness (AGI) annually in Canada is 20·5 million cases. Approximately 4 million of these cases are domestically acquired and foodborne, yet the proportion of waterborne cases is unknown. A number of randomized controlled trials have been completed to estimate the influence of tap water from municipal drinking water plants on the burden of AGI. In Canada, 83% of the population (28 521 761 people) consumes tap water from municipal drinking water plants serving >1000 people. The drinking water-related AGI burden associated with the consumption of water from these systems in Canada is unknown. The objective of this research was to estimate the number of AGI cases attributable to consumption of drinking water from large municipal water supplies in Canada, using data from four household drinking water intervention trials. Canadian municipal water treatment systems were ranked into four categories based on source water type and quality, population size served, and treatment capability and barriers. The water treatment plants studied in the four household drinking water intervention trials were also ranked according to the aforementioned criteria, and the Canadian treatment plants were then scored against these criteria to develop four AGI risk groups. The proportion of illnesses attributed to distribution system events vs. source water quality/treatment failures was also estimated, to inform the focus of future intervention efforts. It is estimated that 334 966 cases (90% probability interval 183 006-501 026) of AGI per year are associated with the consumption of tap water from municipal systems that serve >1000 people in Canada. This study provides a framework for estimating the burden of waterborne illness at a national level and identifying existing knowledge gaps for future research and surveillance efforts, in Canada and abroad. |
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M. ; THOMAS, M. K. ; MEDEIROS, D. T. ; McFADYEN, S. ; PINTAR, K. D. M.</creator><creatorcontrib>MURPHY, H. M. ; THOMAS, M. K. ; MEDEIROS, D. T. ; McFADYEN, S. ; PINTAR, K. D. M.</creatorcontrib><description>The estimated burden of endemic acute gastrointestinal illness (AGI) annually in Canada is 20·5 million cases. Approximately 4 million of these cases are domestically acquired and foodborne, yet the proportion of waterborne cases is unknown. A number of randomized controlled trials have been completed to estimate the influence of tap water from municipal drinking water plants on the burden of AGI. In Canada, 83% of the population (28 521 761 people) consumes tap water from municipal drinking water plants serving >1000 people. The drinking water-related AGI burden associated with the consumption of water from these systems in Canada is unknown. The objective of this research was to estimate the number of AGI cases attributable to consumption of drinking water from large municipal water supplies in Canada, using data from four household drinking water intervention trials. Canadian municipal water treatment systems were ranked into four categories based on source water type and quality, population size served, and treatment capability and barriers. The water treatment plants studied in the four household drinking water intervention trials were also ranked according to the aforementioned criteria, and the Canadian treatment plants were then scored against these criteria to develop four AGI risk groups. The proportion of illnesses attributed to distribution system events vs. source water quality/treatment failures was also estimated, to inform the focus of future intervention efforts. It is estimated that 334 966 cases (90% probability interval 183 006-501 026) of AGI per year are associated with the consumption of tap water from municipal systems that serve >1000 people in Canada. This study provides a framework for estimating the burden of waterborne illness at a national level and identifying existing knowledge gaps for future research and surveillance efforts, in Canada and abroad.</description><identifier>ISSN: 0950-2688</identifier><identifier>EISSN: 1469-4409</identifier><identifier>DOI: 10.1017/S0950268815002083</identifier><identifier>PMID: 26564554</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Acute Disease ; Canada - epidemiology ; Drinking water ; Drinking Water - microbiology ; Drinking Water - parasitology ; Drinking Water - virology ; E coli ; Estimates ; Gastrointestinal diseases ; Gastrointestinal Diseases - epidemiology ; Gastrointestinal Diseases - microbiology ; Gastrointestinal Diseases - parasitology ; Gastrointestinal Diseases - virology ; Gastrointestinal Infection ; Groundwater ; Humans ; Illnesses ; Models, Theoretical ; Original Papers ; Pathogens ; Public health ; Randomized Controlled Trials as Topic ; Subscribers ; Surface water ; Water quality ; Water Supply ; Water treatment</subject><ispartof>Epidemiology and infection, 2016-05, Vol.144 (7), p.1371-1385</ispartof><rights>Copyright © Cambridge University Press 2015</rights><rights>Cambridge University Press 2015</rights><rights>Copyright © Cambridge University Press 2015 This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.</rights><rights>Cambridge University Press 2015 2015 Cambridge University Press</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c526t-e345ab3e4dbca8f8a80d051c133c62f290f6e5ffaa29b25a0b787dae843f69693</citedby><cites>FETCH-LOGICAL-c526t-e345ab3e4dbca8f8a80d051c133c62f290f6e5ffaa29b25a0b787dae843f69693</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/26515631$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/26515631$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,314,727,780,784,803,885,27924,27925,53791,53793,58017,58250</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26564554$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>MURPHY, H. 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The drinking water-related AGI burden associated with the consumption of water from these systems in Canada is unknown. The objective of this research was to estimate the number of AGI cases attributable to consumption of drinking water from large municipal water supplies in Canada, using data from four household drinking water intervention trials. Canadian municipal water treatment systems were ranked into four categories based on source water type and quality, population size served, and treatment capability and barriers. The water treatment plants studied in the four household drinking water intervention trials were also ranked according to the aforementioned criteria, and the Canadian treatment plants were then scored against these criteria to develop four AGI risk groups. The proportion of illnesses attributed to distribution system events vs. source water quality/treatment failures was also estimated, to inform the focus of future intervention efforts. It is estimated that 334 966 cases (90% probability interval 183 006-501 026) of AGI per year are associated with the consumption of tap water from municipal systems that serve >1000 people in Canada. This study provides a framework for estimating the burden of waterborne illness at a national level and identifying existing knowledge gaps for future research and surveillance efforts, in Canada and abroad.</description><subject>Acute Disease</subject><subject>Canada - epidemiology</subject><subject>Drinking water</subject><subject>Drinking Water - microbiology</subject><subject>Drinking Water - parasitology</subject><subject>Drinking Water - virology</subject><subject>E coli</subject><subject>Estimates</subject><subject>Gastrointestinal diseases</subject><subject>Gastrointestinal Diseases - epidemiology</subject><subject>Gastrointestinal Diseases - microbiology</subject><subject>Gastrointestinal Diseases - parasitology</subject><subject>Gastrointestinal Diseases - virology</subject><subject>Gastrointestinal Infection</subject><subject>Groundwater</subject><subject>Humans</subject><subject>Illnesses</subject><subject>Models, Theoretical</subject><subject>Original Papers</subject><subject>Pathogens</subject><subject>Public health</subject><subject>Randomized Controlled Trials as Topic</subject><subject>Subscribers</subject><subject>Surface water</subject><subject>Water quality</subject><subject>Water Supply</subject><subject>Water treatment</subject><issn>0950-2688</issn><issn>1469-4409</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>IKXGN</sourceid><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqFks1rFDEYxoModq3-AR6UgJd6WM3H5GMuQllqWyh4UM_DO5nMbtaZZE0ylt78082w27Iq4imB5_c870eC0EtK3lFC1fvPpBaESa2pIIQRzR-hBa1kvawqUj9Gi1lezvoJepbSlhBSM62eohMmhayEqBbo50XKboTs_BrnjcV-GlsbceixgWTTfAEzZYvXkHIMzmdbDB4G7IbB25Tw2fnl9VsMKQXjINsO37q8wSvw0DnweJy8M25XDF10_ttc57ZgEae7lO2YnqMnPQzJvjicp-jrx4svq6vlzafL69X5zdIIJvPS8kpAy23VtQZ0r0GTjghqKOdGsp7VpJdW9D0Aq1smgLRKqw6srngva1nzU_Rhn7ub2tF2xvocYWh2sUwf75oArvld8W7TrMOPptKMa16VgLNDQAzfp7KFZnTJ2GEAb8OUGqoV00xrKf-PKqVqTZVUBX3zB7oNUyz7nQMZ50ppygpF95SJIaVo-4e-KWnmr9D89RWK5_XxwA-O-7cvwKs9sE05xGOdCslp0fmhKIxtdN3aHvX2z7K_AAt-yeI</recordid><startdate>20160501</startdate><enddate>20160501</enddate><creator>MURPHY, H. 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M.</au><au>THOMAS, M. K.</au><au>MEDEIROS, D. T.</au><au>McFADYEN, S.</au><au>PINTAR, K. D. M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Estimating the number of cases of acute gastrointestinal illness (AGI) associated with Canadian municipal drinking water systems</atitle><jtitle>Epidemiology and infection</jtitle><addtitle>Epidemiol. Infect</addtitle><date>2016-05-01</date><risdate>2016</risdate><volume>144</volume><issue>7</issue><spage>1371</spage><epage>1385</epage><pages>1371-1385</pages><issn>0950-2688</issn><eissn>1469-4409</eissn><abstract>The estimated burden of endemic acute gastrointestinal illness (AGI) annually in Canada is 20·5 million cases. Approximately 4 million of these cases are domestically acquired and foodborne, yet the proportion of waterborne cases is unknown. A number of randomized controlled trials have been completed to estimate the influence of tap water from municipal drinking water plants on the burden of AGI. In Canada, 83% of the population (28 521 761 people) consumes tap water from municipal drinking water plants serving >1000 people. The drinking water-related AGI burden associated with the consumption of water from these systems in Canada is unknown. The objective of this research was to estimate the number of AGI cases attributable to consumption of drinking water from large municipal water supplies in Canada, using data from four household drinking water intervention trials. Canadian municipal water treatment systems were ranked into four categories based on source water type and quality, population size served, and treatment capability and barriers. The water treatment plants studied in the four household drinking water intervention trials were also ranked according to the aforementioned criteria, and the Canadian treatment plants were then scored against these criteria to develop four AGI risk groups. The proportion of illnesses attributed to distribution system events vs. source water quality/treatment failures was also estimated, to inform the focus of future intervention efforts. It is estimated that 334 966 cases (90% probability interval 183 006-501 026) of AGI per year are associated with the consumption of tap water from municipal systems that serve >1000 people in Canada. This study provides a framework for estimating the burden of waterborne illness at a national level and identifying existing knowledge gaps for future research and surveillance efforts, in Canada and abroad.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><pmid>26564554</pmid><doi>10.1017/S0950268815002083</doi><tpages>15</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Acute Disease Canada - epidemiology Drinking water Drinking Water - microbiology Drinking Water - parasitology Drinking Water - virology E coli Estimates Gastrointestinal diseases Gastrointestinal Diseases - epidemiology Gastrointestinal Diseases - microbiology Gastrointestinal Diseases - parasitology Gastrointestinal Diseases - virology Gastrointestinal Infection Groundwater Humans Illnesses Models, Theoretical Original Papers Pathogens Public health Randomized Controlled Trials as Topic Subscribers Surface water Water quality Water Supply Water treatment |
title | Estimating the number of cases of acute gastrointestinal illness (AGI) associated with Canadian municipal drinking water systems |
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