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Gene and Antigen Markers of Shiga-toxin Producing from Michigan and Indiana River Water: Occurrence and Relation to Recreational Water Quality Criteria

Overview of attention for article published in Journal of Environmental Quality, January 2009
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About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • Good Attention Score compared to outputs of the same age (77th percentile)

Mentioned by

blogs
1 blog

Citations

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25 Dimensions

Readers on

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34 Mendeley
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Title
Gene and Antigen Markers of Shiga-toxin Producing from Michigan and Indiana River Water: Occurrence and Relation to Recreational Water Quality Criteria
Published in
Journal of Environmental Quality, January 2009
DOI 10.2134/jeq2008.0225
Pubmed ID
Authors

Joseph W. Duris, Sheridan K. Haack, Lisa R. Fogarty

Abstract

The relation of bacterial pathogen occurrence to fecal indicator bacteria (FIB) concentrations used for recreational water quality criteria (RWQC) is poorly understood. This study determined the occurrence of Shiga-toxin producing Escherichia coli (STEC) markers and their relation to FIB concentrations in Michigan and Indiana river water. Using 67 fecal coliform (FC) bacteria cultures from 41 river sites in multiple watersheds, we evaluated the occurrence of five STEC markers: the Escherichia coli (EC) O157 antigen and gene, and the STEC virulence genes eaeA, stx1, and stx2. Simple isolations from selected FC cultures yielded viable EC O157. By both antigen and gene assays, EC O157 was detected in a greater proportion of samples exceeding rather than meeting FC RWQC (P < 0.05), but was unrelated to EC and enterococci RWQC. The occurrence of all other STEC markers was unrelated to any FIB RWQC. The eaeA, stx2, and stx1 genes were found in 93.3, 13.3, and in 46.7% of samples meeting FC RWQC and in 91.7, 0.0, and 37.5% of samples meeting the EC RWQC. Although not statistically significant, the percentage of samples positive for each STEC marker except stx1 was lower in samples that met, as opposed to exceeded, FIB RWQC. Viable STEC were common members of the FC communities in river water throughout southern Michigan and northern Indiana, regardless of FIB RWQC. Our study indicates that further information on the occurrence of pathogens in recreational waters, and research on alternative indicators of their occurrence, may help inform water-resource management and public health decision-making.

Mendeley readers

The data shown below were compiled from readership statistics for 34 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 3 9%
Brazil 1 3%
Iran, Islamic Republic of 1 3%
Unknown 29 85%

Demographic breakdown

Readers by professional status Count As %
Researcher 7 21%
Professor > Associate Professor 7 21%
Student > Ph. D. Student 5 15%
Student > Bachelor 3 9%
Student > Master 3 9%
Other 8 24%
Unknown 1 3%
Readers by discipline Count As %
Agricultural and Biological Sciences 9 26%
Environmental Science 6 18%
Engineering 6 18%
Unspecified 4 12%
Immunology and Microbiology 3 9%
Other 5 15%
Unknown 1 3%

Attention Score in Context

This research output has an Altmetric Attention Score of 6. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 23 September 2009.
All research outputs
#2,877,406
of 12,476,200 outputs
Outputs from Journal of Environmental Quality
#305
of 1,782 outputs
Outputs of similar age
#23,479
of 105,048 outputs
Outputs of similar age from Journal of Environmental Quality
#1
of 1 outputs
Altmetric has tracked 12,476,200 research outputs across all sources so far. Compared to these this one has done well and is in the 76th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 1,782 research outputs from this source. They receive a mean Attention Score of 4.8. This one has done well, scoring higher than 82% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 105,048 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 77% of its contemporaries.
We're also able to compare this research output to 1 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them