K
Kris Rahn
Researcher at Health Canada
Publications - 22
Citations - 1373
Kris Rahn is an academic researcher from Health Canada. The author has contributed to research in topics: Campylobacter jejuni & Serotype. The author has an hindex of 17, co-authored 22 publications receiving 1327 citations. Previous affiliations of Kris Rahn include Public Health Agency of Canada.
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Journal ArticleDOI
Association of Genomic O Island 122 of Escherichia coli EDL 933 with Verocytotoxin-Producing Escherichia coli Seropathotypes That Are Linked to Epidemic and/or Serious Disease
Mohamed A. Karmali,Mohamed A. Karmali,Mariola Mascarenhas,Songhai Shen,Kim Ziebell,Shelley Johnson,Richard Reid-Smith,Judith L. Isaac-Renton,Clifford G. Clark,Kris Rahn,James B. Kaper +10 more
TL;DR: The distribution of EDL 933 O island 122 (OI-122) was investigated in 70 strains of Verocytotoxin-producing Escherichia coli of multiple serotypes that were classified into five “seropathotypes” (A through E) based on the reported occurrence of serotypes in human disease, in outbreaks, and/or in the hemolytic-uremic syndrome.
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Escherichia coli O157:H7 diarrhoea associated with well water and infected cattle on an Ontario farm.
S. G. Jackson,R. B. Goodbrand,Roger P. Johnson,V. G. Odorico,David Alves,Kris Rahn,Jeff Wilson,M. K. Welch,Rasik Khakhria +8 more
TL;DR: Hydgeological investigation revealed the design and location of the well would allow manure-contaminated surface water to flow into the well and demonstrates that cattle farm well water is a potential source of E. coli O157:H7 which may not be identified by standard screening for E. bacteria in water.
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Persistence of Escherichia coli O157:H7 in dairy cattle and the dairy farm environment.
Kris Rahn,S. A. Renwick,Roger P. Johnson,Jeff Wilson,R. C. Clarke,D. Alves,Scott A. McEwen,Hermy Lior,John S. Spika +8 more
TL;DR: The persistence of Escherichia coli O157:H7 in cattle and the farm environment was investigated on eight Ontario dairy farms positive for E. coli O 157: H7 in a longitudinal study commenced one year previously.
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Neutralizing antibodies to Escherichia coli Vero cytotoxin 1 and antibodies to O157 lipopolysaccharide in healthy farm family members and urban residents.
D Reymond,Roger P. Johnson,M A Karmali,Martin Petric,M Winkler,S Johnson,Kris Rahn,S. A. Renwick,Jeff Wilson,R. C. Clarke,Spika Js +10 more
TL;DR: The high rate of seropositivity to VT1 in farm residents probably reflects the booster effect of repeated VTEC exposures and argues against a sustained generalized immunosuppressive effect of VT1.
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Comparison of molecular typing methods useful for detecting clusters of Campylobacter jejuni and C. coli isolates through routine surveillance.
Clifford G. Clark,Clifford G. Clark,Eduardo N. Taboada,Christopher C. R. Grant,Connie Blakeston,Frank Pollari,Barbara Marshall,Kris Rahn,Joanne MacKinnon,Danielle Daignault,Dylan R Pillai,Lai-King Ng,Lai-King Ng +12 more
TL;DR: Comparative genomic fingerprinting appears to be one of the optimal methods for the detection of clusters of cases, and it could be supplemented by the sequencing of the flaA gene short variable region (flaA SVR sequence typing), with or without subsequent multilocus sequence typing (MLST).