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Christine Keys

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Articles 13
Citations 426
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Recent Articles
1.
Hoffmann M, Luo Y, Monday S, Gonzalez-Escalona N, Ottesen A, Muruvanda T, et al.
J Infect Dis . 2015 May; 213(4):502-8. PMID: 25995194
Background: Using a novel combination of whole-genome sequencing (WGS) analysis and geographic metadata, we traced the origins of Salmonella Bareilly isolates collected in 2012 during a widespread food-borne outbreak in...
2.
Feng P, Keys C, Lacher D, Beutin L, Bentancor A, Heuvelink A, et al.
FEMS Microbiol Lett . 2012 Oct; 337(2):126-31. PMID: 23020830
Atypical enteropathogenic Escherichia coli (aEPEC) is comprised of a large heterogeneous group of strains and serotypes that carry the intimin gene (eae) but no other EPEC virulence factors. In a...
3.
Zou W, Lin W, Hise K, Chen H, Keys C, Chen J
J Clin Microbiol . 2012 Mar; 50(5):1524-32. PMID: 22378901
A classification model is presented for rapid identification of Salmonella serotypes based on pulsed-field gel electrophoresis (PFGE) fingerprints. The classification model was developed using random forest and support vector machine...
4.
Feng P, Councell T, Keys C, Monday S
Appl Environ Microbiol . 2010 Nov; 77(1):343-5. PMID: 21057025
The 13 Shiga-toxigenic Escherichia coli (STEC) strains isolated from wholesale spinach and lettuce consisted mostly of serotypes that have not been implicated in illness. Among these strains, however, were two...
5.
Timbo B, Keys C, Klontz K
J Food Prot . 2010 Sep; 73(8):1511-4. PMID: 20819363
Imported foods must meet the same U.S. Food and Drug Administration (FDA) standards as domestic foods. The FDA determines whether an imported food is in compliance with the Federal Food,...
6.
Feng P, Keys C, Lacher D, Monday S, Shelton D, Rozand C, et al.
FEMS Microbiol Lett . 2010 May; 308(1):62-7. PMID: 20487015
We examined O157:non-H7 strains isolated from various sources and geographical locations and found 15/57 strains to carry eae alleles, including alpha, beta, epsilon and kappa/delta, suggesting that these strains may...
7.
Garvin L, Bash M, Keys C, Warner D, Ram S, Shafer W, et al.
Infect Immun . 2008 Jun; 76(8):3700-9. PMID: 18541655
Typing of the porB variable region (VR) is an epidemiological tool that classifies gonococcal strains based on sequence differences in regions of the porB gene that encode surface-exposed loops. The...
8.
Feng P, Monday S, Lacher D, Allison L, Siitonen A, Keys C, et al.
Emerg Infect Dis . 2008 Jan; 13(11):1701-6. PMID: 18217554
Escherichia coli O157:H7 variants were examined for trait mutations and by molecular subtyping to better define clonal complexes postulated on the O157:H7 evolution model. Strains of beta-glucuronidase-positive, sorbitol-negative O157:H7 isolated...
9.
Cooley M, Carychao D, Crawford-Miksza L, Jay M, Myers C, Rose C, et al.
PLoS One . 2008 Jan; 2(11):e1159. PMID: 18174909
Fresh vegetables have become associated with outbreaks caused by Escherichia coli O157:H7 (EcO157). Between 1995-2006, 22 produce outbreaks were documented in the United States, with nearly half traced to lettuce...
10.
Vogler A, Keys C, Nemoto Y, Colman R, Jay Z, Keim P
J Bacteriol . 2006 Jun; 188(12):4253-63. PMID: 16740932
Variable-number tandem repeat (VNTR) loci have shown a remarkable ability to discriminate among isolates of the recently emerged clonal pathogen Escherichia coli O157:H7, making them a very useful molecular epidemiological...