NDLI: Exposure to human-associated fecal indicators and self-reported illness among swimmers at recreational beaches: a cohort study

Content Provider	Springer Nature : BioMed Central
Author	Napier, Melanie D. Haugland, Richard Poole, Charles Dufour, Alfred P. Stewart, Jill R. Weber, David J. Varma, Manju Lavender, Jennifer S. Wade, Timothy J.
Abstract	Background Fecal indicator bacteria used to assess illness risks in recreational waters (e.g., Escherichia coli, Enterococci) cannot discriminate among pollution sources. To address this limitation, human-associated Bacteroides markers have been proposed, but the risk of illness associated with the presence of these markers in recreational waters is unclear. Our objective was to estimate associations between human-associated Bacteroides markers in water and self-reported illness among swimmers at 6 U.S. beaches spanning 2003–2007. Methods We used data from a prospectively-enrolled cohort of 12,060 swimmers surveyed about beach activities and water exposure on the day of their beach visit. Ten to twelve days later, participants reported gastroinestinal, diarrheal, and respiratory illnesses experienced since the visit. Daily water samples were analyzed for the presence of human-associated Bacteroides genetic markers: HF183, BsteriF1, BuniF2, HumM2. We used model-based standardization to estimate risk differences (RD) and 95% confidence intervals (CI). We assessed whether the presence of Bacteroides markers were modifiers of the association between general Enterococcus and illness among swimmers using interaction contrast. Results Overall we observed inconsistent associations between the presence of Bacteroides markers and illness. There was a pattern of increased risks of gastrointestinal (RD = 1.9%; 95% CI: 0.1%, 3.7%), diarrheal (RD = 1.3%; 95% CI: -0.2%, 2.7%), and respiratory illnesses (RD = 1.1%; 95% CI: -0.2%, 2.5%) associated with BsteriF1. There was no evidence that Bacteroides markers acted as modifiers of Enterococcus and illness. Patterns were similar when stratified by water matrix. Conclusions Quantitative measures of fecal pollution using Bacteroides, rather than presence-absence indicators, may be necessary to accurately assess human risk specific to the presence of human fecal pollution.
Related Links	https://ehjournal.biomedcentral.com/counter/pdf/10.1186/s12940-017-0308-3.pdf
Ending Page	15
Page Count	15
Starting Page	1
File Format	HTM / HTML
DOI	10.1186/s12940-017-0308-3
Journal	Environmental Health
Issue Number	1
Volume Number	16
Language	English
Publisher	BioMed Central
Publisher Date	2017-10-02
Access Restriction	Open
Subject Keyword	Occupational Medicine Industrial Medicine Public Health Environmental Health Bacteroides Recreational water quality Fecal indicator bacteria Gastrointestinal illness Diarrhea Respiratory illness Microbial source tracking Occupational Medicine/Industrial Medicine
Content Type	Text
Resource Type	Article
Subject	Health, Toxicology and Mutagenesis Public Health, Environmental and Occupational Health
Journal Impact Factor	5.4/2023
5-Year Journal Impact Factor	6.7/2023

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Rapidly measured indicators of recreational water quality and swimming-associated illness at marine beaches: a prospective cohort study

U.S. Recreational Water Quality Criteria: A Vision for the Future

Monitoring urban beaches with qPCR vs. culture measures of fecal indicator bacteria: Implications for public notification

Current Status of Marker Genes of Bacteroides and Related Taxa for Identifying Sewage Pollution in Environmental Waters

Microbial Source Tracking of Fecal Indicating Bacteria in Coral Reef Waters, Recreational Waters, and Groundwater of Saipan by Real-Time Quantitative PCR

Microbial Source Tracking as a Method of Determination of Beach Sand Contamination

The coastal environment and human health: microbial indicators, pathogens, sentinels and reservoirs

Identification of potential microbial risk factors associated with fecal indicator exceedances at recreational beaches

The incidence and health burden of earaches attributable to recreational swimming in natural waters: a prospective cohort study

Exposure to human-associated fecal indicators and self-reported illness among swimmers at recreational beaches: a cohort study

Similar Documents

Rapidly measured indicators of recreational water quality and swimming-associated illness at marine beaches: a prospective cohort study

U.S. Recreational Water Quality Criteria: A Vision for the Future

Monitoring urban beaches with qPCR vs. culture measures of fecal indicator bacteria: Implications for public notification

Current Status of Marker Genes of Bacteroides and Related Taxa for Identifying Sewage Pollution in Environmental Waters

Microbial Source Tracking of Fecal Indicating Bacteria in Coral Reef Waters, Recreational Waters, and Groundwater of Saipan by Real-Time Quantitative PCR

Microbial Source Tracking as a Method of Determination of Beach Sand Contamination

The coastal environment and human health: microbial indicators, pathogens, sentinels and reservoirs

Identification of potential microbial risk factors associated with fecal indicator exceedances at recreational beaches

The incidence and health burden of earaches attributable to recreational swimming in natural waters: a prospective cohort study

Exposure to human-associated fecal indicators and self-reported illness among swimmers at recreational beaches: a cohort study