Title |
Geogenomic Segregation and Temporal Trends of Human Pathogenic Escherichia coli O157:H7, Washington, USA, 2005–2014 - Volume 24, Number 1—January 2018 - Emerging Infectious Diseases journal - CDC
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Published in |
Emerging Infectious Diseases, January 2018
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DOI | 10.3201/eid2401.170851 |
Pubmed ID | |
Authors |
Gillian A.M. Tarr, Smriti Shringi, Amanda I. Phipps, Thomas E. Besser, Jonathan Mayer, Hanna N. Oltean, Jon Wakefield, Phillip I. Tarr, Peter Rabinowitz |
Abstract |
The often-noted and persistent increased incidence of Escherichia coli O157:H7 infections in rural areas is not well understood. We used a cohort of E. coli O157:H7 cases reported in Washington, USA, during 2005-2014, along with phylogenomic characterization of the infecting isolates, to identify geographic segregation of and temporal trends in specific phylogenetic lineages of E. coli O157:H7. Kernel estimation and generalized additive models demonstrated that pathogen lineages were spatially segregated during the period of analysis and identified a focus of segregation spanning multiple, predominantly rural, counties for each of the main clinical lineages, Ib, IIa, and IIb. These results suggest the existence of local reservoirs from which humans are infected. We also noted a secular increase in the proportion of lineage IIa and IIb isolates. Spatial segregation by phylogenetic lineage offers the potential to identify local reservoirs and intervene to prevent continued transmission. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 27 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 9 | 33% |
Student > Bachelor | 3 | 11% |
Student > Master | 3 | 11% |
Student > Ph. D. Student | 3 | 11% |
Other | 2 | 7% |
Other | 2 | 7% |
Unknown | 5 | 19% |
Readers by discipline | Count | As % |
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Agricultural and Biological Sciences | 5 | 19% |
Medicine and Dentistry | 4 | 15% |
Veterinary Science and Veterinary Medicine | 3 | 11% |
Social Sciences | 3 | 11% |
Immunology and Microbiology | 2 | 7% |
Other | 3 | 11% |
Unknown | 7 | 26% |