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A prospective comparative study of children with gastroenteritis: emergency department compared with symptomatic care at home.

Vanderkooi OG, Xie J, Lee BE, Pang XL, Chui L, Payne DC, MacDonald J, Ali S, MacDonald S, Drews S, Osterreicher L, Kim K, Freedman SB; Alberta Provincial Pediatric EnTeric Infection TEam (APPETITE) and Pediatric Emergency Research Canada (PERC).

Eur J Clin Microbiol Infect Dis. 2019 Sep 9. doi: 10.1007/s10096-019-03688-8. [Epub ahead of print]


Outbreak of Escherichia coli O157:H7 Infections Linked to Mechanically Tenderized Beef and the Largest Beef Recall in Canada, 2012.

Currie A, Honish L, Cutler J, Locas A, Lavoie MC, Gaulin C, Galanis E, Tschetter L, Chui L, Taylor M, Jamieson F, Gilmour M, Ng C, Mutti S, Mah V, Hamel M, Martinez A, Buenaventura E, Hoang L, Pacagnella A, Ramsay D, Bekal S, Coetzee K, Berry C, Farber J, Team OBOTNI.

J Food Prot. 2019 Sep;82(9):1532-1538. doi: 10.4315/0362-028X.JFP-19-005.


Viability of bacterial enteropathogens in fecal samples in the presence or absence of different types of transport media.

Berenger BM, Ferrato C, Chui L.

Diagn Microbiol Infect Dis. 2019 Jul 8:114862. doi: 10.1016/j.diagmicrobio.2019.07.001. [Epub ahead of print]


Bacteriological analysis of wheat flour associated with an outbreak of Shiga toxin-producing Escherichia coli O121.

Gill A, Carrillo C, Hadley M, Kenwell R, Chui L.

Food Microbiol. 2019 Sep;82:474-481. doi: 10.1016/ Epub 2019 Mar 22.


CPHLN recommendations for the laboratory detection of Shiga toxin-producing Escherichia coli (O157 and non-O157).

Chui L, Christianson S, Alexander DC, Arseneau V, Bekal S, Berenger B, Chen Y, Davidson R, Farrell DJ, German GJ, Gilbert L, Hoang L, Johnson RP, MacKeen A, Maki A, Nadon C, Nickerson E, Peralta A, Arneson SR, Yu Y, Ziebell K.

Can Commun Dis Rep. 2018 Nov 1;44(11):304-307. doi: 10.14745/ccdr.v44i11a06. eCollection 2018 Nov 1.


Comparative Evaluation of Enteric Bacterial Culture and a Molecular Multiplex Syndromic Panel in Children with Acute Gastroenteritis.

Kellner T, Parsons B, Chui L, Berenger BM, Xie J, Burnham CA, Tarr PI, Lee BE, Nettel-Aguirre A, Szelewicki J, Vanderkooi OG, Pang XL, Zelyas N, Freedman SB.

J Clin Microbiol. 2019 May 24;57(6). pii: e00205-19. doi: 10.1128/JCM.00205-19. Print 2019 Jun.


Pigment Visibility on Rectal Swabs Used To Detect Enteropathogens: a Prospective Cohort Study.

Xie J, Tarr GAM, Ali S, Chui L, Pang XL, Lee BE, Vanderkooi OG, Tarr PI, Zhuo R, Parsons B, Berenger BM, Kim K, Freedman SB.

J Clin Microbiol. 2019 May 24;57(6). pii: e00213-19. doi: 10.1128/JCM.00213-19. Print 2019 Jun.


Performance of commercial tests for molecular detection of Shiga toxin-producing Escherichia coli (STEC): a systematic review and meta-analysis protocol.

Tarr GAM, Lin CY, Lorenzetti D, Chui L, Tarr PI, Hartling L, Vandermeer B, Freedman SB.

BMJ Open. 2019 Mar 7;9(3):e025950. doi: 10.1136/bmjopen-2018-025950.


General detection of Shiga toxin 2 and subtyping of Shiga toxin 1 and 2 in Escherichia coli using qPCR.

Zhi S, Szelewicki J, Ziebell K, Parsons B, Chui L.

J Microbiol Methods. 2019 Apr;159:51-55. doi: 10.1016/j.mimet.2019.02.008. Epub 2019 Feb 14.


Targeting discriminatory SNPs in Salmonella enterica serovar Heidelberg genomes using RNase H2-dependent PCR.

Labbé G, Rankin MA, Robertson J, Moffat J, Giang E, Lee LK, Ziebell K, MacKinnon J, Laing CR, Parmley EJ, Agunos A, Daignault D, Bekal S, Chui L, MacDonald KA, Hoang L, Slavic D, Ramsay D, Pollari F, Nash JHE, Johnson RP.

J Microbiol Methods. 2019 Feb;157:81-87. doi: 10.1016/j.mimet.2018.12.021. Epub 2018 Dec 25.


Performance of Stool-testing Recommendations for Acute Gastroenteritis When Used to Identify Children With 9 Potential Bacterial Enteropathogens.

Tarr GAM, Chui L, Lee BE, Pang XL, Ali S, Nettel-Aguirre A, Vanderkooi OG, Berenger BM, Dickinson J, Tarr PI, Drews S, MacDonald J, Kim K, Freedman SB.

Clin Infect Dis. 2019 Sep 13;69(7):1173-1182. doi: 10.1093/cid/ciy1021.


Multicenter Trial of a Combination Probiotic for Children with Gastroenteritis.

Freedman SB, Williamson-Urquhart S, Farion KJ, Gouin S, Willan AR, Poonai N, Hurley K, Sherman PM, Finkelstein Y, Lee BE, Pang XL, Chui L, Schnadower D, Xie J, Gorelick M, Schuh S; PERC PROGUT Trial Group.

N Engl J Med. 2018 Nov 22;379(21):2015-2026. doi: 10.1056/NEJMoa1802597.


Diagnostic Interpretation Guidance for Pediatric Enteric Pathogens: A Modified Delphi Consensus Process.

Stang AS, Trudeau M, Vanderkooi OG, Lee BE, Chui L, Pang XL, Allen V, Burnham CD, Goldfarb DM, MacDonald J, Parsons B, Petrich A, Pollari F, Tarr PI, Tipples G, Zhuo R, Freedman SB.

Can J Infect Dis Med Microbiol. 2018 Sep 27;2018:2589826. doi: 10.1155/2018/2589826. eCollection 2018.


Relationship between enteric pathogens and acute gastroenteritis disease severity: a prospective cohort study.

Xie J, Nettel-Aguirre A, Lee BE, Chui L, Pang XL, Zhuo R, Parsons B, Vanderkooi OG, Tarr PI, Ali S, Dickinson JA, Hagen E, Svenson LW, MacDonald SE, Drews SJ, Tellier R, Graham T, Lavoie M, MacDonald J, Freedman SB; Pediatric Emergency Research Canada (PERC) and the Alberta Provincial Pediatric EnTeric Infection TEam (APPETITE Team).

Clin Microbiol Infect. 2019 Apr;25(4):454-461. doi: 10.1016/j.cmi.2018.06.016. Epub 2018 Jun 28.


Frequent Implication of Multistress-Tolerant Campylobacter jejuni in Human Infections.

Oh E, Chui L, Bae J, Li V, Ma A, Mutschall SK, Taboada EN, McMullen LM, Jeon B.

Emerg Infect Dis. 2018 Jun;24(6):1037-1044. doi: 10.3201/eid2406.171587.


Canadian Public Health Laboratory Network position statement: Non-culture based diagnostics for gastroenteritis and implications for public health investigations.

Berenger B, Chui L, Reimer AR, Allen V, Alexander D, Domingo MC, Haldane D, Hoang L, Levett P, MacKeen A, Marcino D, Sheitoyan-Pesant C, Zahariadis G; Canadian Public Health Laboratory Network.

Can Commun Dis Rep. 2017 Dec 7;43(12):279-281. eCollection 2017 Dec 7.


Towards the elimination of paediatric tuberculosis in high-income, immigrant-receiving countries: a 25-year conventional and molecular epidemiological case study.

Dhawan V, Bown J, Lau A, Langlois-Klassen D, Kunimoto D, Bhargava R, Chui L, Collin SM, Long R.

ERJ Open Res. 2018 May 8;4(2). pii: 00131-2017. doi: 10.1183/23120541.00131-2017. eCollection 2018 Apr.


Physician perspectives on vaccination and diagnostic testing in children with gastroenteritis: A primary care physician survey.

Sperou AJ, Dickinson JA, Lee B, Louie M, Pang XL, Chui L, Vanderkooi OG, Freedman SB; Alberta Provincial Pediatric EnTeric Infection TEam (APPETITE).

Paediatr Child Health. 2017 Sep;22(6):317-321. doi: 10.1093/pch/pxx078. Epub 2017 Jun 17.


Outbreak of Escherichia coli O157:H7 Infections Linked to Aged Raw Milk Gouda Cheese, Canada, 2013.

Currie A, Galanis E, Chacon PA, Murray R, Wilcott L, Kirkby P, Honish L, Franklin K, Farber J, Parker R, Shyng S, Sharma D, Tschetter L, Hoang L, Chui L, Pacagnella A, Wong J, Pritchard J, Kerr A, Taylor M, Mah V, Flint J; Investigative Team.

J Food Prot. 2018 Feb;81(2):325-331. doi: 10.4315/0362-028X.JFP-17-283.


Identification of Enteric Viruses in Oral Swabs from Children with Acute Gastroenteritis.

Zhuo R, Parsons BD, Lee BE, Drews SJ, Chui L, Louie M, Crago B, Freedman SB, Ali S, Pang X.

J Mol Diagn. 2018 Jan;20(1):56-62. doi: 10.1016/j.jmoldx.2017.09.003. Epub 2017 Oct 19.


Neptune: a bioinformatics tool for rapid discovery of genomic variation in bacterial populations.

Marinier E, Zaheer R, Berry C, Weedmark KA, Domaratzki M, Mabon P, Knox NC, Reimer AR, Graham MR, Chui L, Patterson-Fortin L, Zhang J, Pagotto F, Farber J, Mahony J, Seyer K, Bekal S, Tremblay C, Isaac-Renton J, Prystajecky N, Chen J, Slade P, Van Domselaar G.

Nucleic Acids Res. 2017 Oct 13;45(18):e159. doi: 10.1093/nar/gkx702.


High genetic variability of norovirus leads to diagnostic test challenges.

Zhuo R, Cho J, Qiu Y, Parsons BD, Lee BE, Chui L, Freedman SB, Pang X; Alberta Provincial Pediatric EnTeric Infection TEam (APPETITE).

J Clin Virol. 2017 Nov;96:94-98. doi: 10.1016/j.jcv.2017.10.003. Epub 2017 Oct 9.


Multi-provincial Salmonellosis Outbreak Related to Newly Hatched Chicks and Poults: A Genomics Perspective.

Croxen MA, Macdonald KA, Walker M, deWith N, Zabek E Rmccm, Peterson C, Reimer A, Chui L, Tschetter L, Hoang L, King RK.

PLoS Curr. 2017 Aug 9;9. pii: ecurrents.outbreaks.309af53b9edcc785163539c30c3953f6. doi: 10.1371/currents.outbreaks.309af53b9edcc785163539c30c3953f6.


Electrocorticographic Encoding of Human Gait in the Leg Primary Motor Cortex.

McCrimmon CM, Wang PT, Heydari P, Nguyen A, Shaw SJ, Gong H, Chui LA, Liu CY, Nenadic Z, Do AH.

Cereb Cortex. 2018 Aug 1;28(8):2752-2762. doi: 10.1093/cercor/bhx155.


American Telemedicine Association Practice Guidelines for Telemental Health with Children and Adolescents.

Myers K, Nelson EL, Rabinowitz T, Hilty D, Baker D, Barnwell SS, Boyce G, Bufka LF, Cain S, Chui L, Comer JS, Cradock C, Goldstein F, Johnston B, Krupinski E, Lo K, Luxton DD, McSwain SD, McWilliams J, North S, Ostrowsky J, Pignatiello A, Roth D, Shore J, Turvey C, Varrell JR, Wright S, Bernard J.

Telemed J E Health. 2017 Oct;23(10):779-804. doi: 10.1089/tmj.2017.0177. Epub 2017 Sep 20. No abstract available.


Effect of severe weather events on the shedding of Shiga toxigenic Escherichia coli in slaughter cattle and phenotype of serogroup O157 isolates.

Stanford K, Reuter T, Bach SJ, Chui L, Ma A, Conrad CC, Tostes R, McAllister TA.

FEMS Microbiol Ecol. 2017 Sep 1;93(9). doi: 10.1093/femsec/fix098.


Enteropathogen detection in children with diarrhoea, or vomiting, or both, comparing rectal flocked swabs with stool specimens: an outpatient cohort study.

Freedman SB, Xie J, Nettel-Aguirre A, Lee B, Chui L, Pang XL, Zhuo R, Parsons B, Dickinson JA, Vanderkooi OG, Ali S, Osterreicher L, Lowerison K, Tarr PI; Alberta Provincial Pediatric EnTeric Infection TEam (APPETITE).

Lancet Gastroenterol Hepatol. 2017 Sep;2(9):662-669. doi: 10.1016/S2468-1253(17)30160-7. Epub 2017 Jul 14.


Differential Survival of Hyper-Aerotolerant Campylobacter jejuni under Different Gas Conditions.

Oh E, McMullen LM, Chui L, Jeon B.

Front Microbiol. 2017 May 30;8:954. doi: 10.3389/fmicb.2017.00954. eCollection 2017.


Characterization of electrocorticogram high-gamma signal in response to varying upper extremity movement velocity.

Wang PT, McCrimmon CM, King CE, Shaw SJ, Millett DE, Gong H, Chui LA, Liu CY, Nenadic Z, Do AH.

Brain Struct Funct. 2017 Nov;222(8):3705-3748. doi: 10.1007/s00429-017-1429-8. Epub 2017 May 18.


Subtyping of Canadian isolates of Salmonella Enteritidis using Multiple Locus Variable Number Tandem Repeat Analysis (MLVA) alone and in combination with Pulsed-Field Gel Electrophoresis (PFGE) and phage typing.

Ziebell K, Chui L, King R, Johnson S, Boerlin P, Johnson RP.

J Microbiol Methods. 2017 Aug;139:29-36. doi: 10.1016/j.mimet.2017.04.012. Epub 2017 Apr 26.


International outbreak of multiple Salmonella serotype infections linked to sprouted chia seed powder - USA and Canada, 2013-2014.

Harvey RR, Heiman Marshall KE, Burnworth L, Hamel M, Tataryn J, Cutler J, Meghnath K, Wellman A, Irvin K, Isaac L, Chau K, Locas A, Kohl J, Huth PA, Nicholas D, Traphagen E, Soto K, Mank L, Holmes-Talbot K, Needham M, Barnes A, Adcock B, Honish L, Chui L, Taylor M, Gaulin C, Bekal S, Warshawsky B, Hobbs L, Tschetter LR, Surin A, Lance S, Wise ME, Williams I, Gieraltowski L.

Epidemiol Infect. 2017 Jun;145(8):1535-1544. doi: 10.1017/S0950268817000504. Epub 2017 Mar 20.


Utilization of a molecular serotyping method for Salmonella enterica in a routine laboratory in Alberta Canada.

Ferrato C, Chui L, King R, Louie M.

J Microbiol Methods. 2017 Apr;135:14-19. doi: 10.1016/j.mimet.2017.01.018. Epub 2017 Feb 1.


Identification of heat resistant Escherichia coli by qPCR for the locus of heat resistance.

Ma A, Chui L.

J Microbiol Methods. 2017 Feb;133:87-89. doi: 10.1016/j.mimet.2016.12.019. Epub 2016 Dec 22.


Subtyping Escherichia coli Virulence Genes Isolated from Feces of Beef Cattle and Clinical Cases in Alberta.

Tostes R, Goji N, Amoako K, Chui L, Kastelic J, DeVinney R, Stanford K, Reuter T.

Foodborne Pathog Dis. 2017 Jan;14(1):35-42. doi: 10.1089/fpd.2016.2199. Epub 2016 Nov 17.


Province-Wide Review of Pediatric Shiga Toxin-Producing Escherichia coli Case Management.

Freedman SB, Eltorki M, Chui L, Xie J, Feng S, MacDonald J, Dixon A, Ali S, Louie M, Lee BE, Osterreicher L, Thull-Freedman J.

J Pediatr. 2017 Jan;180:184-190.e1. doi: 10.1016/j.jpeds.2016.09.013. Epub 2016 Oct 10.


An Improved Culture Method for Selective Isolation of Campylobacter jejuni from Wastewater.

Kim J, Oh E, Banting GS, Braithwaite S, Chui L, Ashbolt NJ, Neumann NF, Jeon B.

Front Microbiol. 2016 Aug 26;7:1345. doi: 10.3389/fmicb.2016.01345. eCollection 2016.


Evidence of Naturalized Stress-Tolerant Strains of Escherichia coli in Municipal Wastewater Treatment Plants.

Zhi S, Banting G, Li Q, Edge TA, Topp E, Sokurenko M, Scott C, Braithwaite S, Ruecker NJ, Yasui Y, McAllister T, Chui L, Neumann NF.

Appl Environ Microbiol. 2016 Aug 30;82(18):5505-18. doi: 10.1128/AEM.00143-16. Print 2016 Sep 15.


Prevalence of plasmid-mediated quinolone resistance (PMQR) genes in non-typhoidal Salmonella strains with resistance and reduced susceptibility to fluoroquinolones from human clinical cases in Alberta, Canada, 2009-13.

Kim J, Han X, Bae J, Chui L, Louie M, Finley R, Mulvey MR, Ferrato CJ, Jeon B.

J Antimicrob Chemother. 2016 Oct;71(10):2988-90. doi: 10.1093/jac/dkw232. Epub 2016 Jun 23. No abstract available.


Phenotypic H-Antigen Typing by Mass Spectrometry Combined with Genetic Typing of H Antigens, O Antigens, and Toxins by Whole-Genome Sequencing Enhances Identification of Escherichia coli Isolates.

Cheng K, Chui H, Domish L, Sloan A, Hernandez D, McCorrister S, Robinson A, Walker M, Peterson LA, Majcher M, Ratnam S, Haldane DJ, Bekal S, Wylie J, Chui L, Tyler S, Xu B, Reimer A, Nadon C, Knox JD, Wang G.

J Clin Microbiol. 2016 Aug;54(8):2162-8. doi: 10.1128/JCM.00422-16. Epub 2016 Jun 15.


Assessment of commercial chromogenic solid media for the detection of non-O157 Shiga toxin-producing Escherichia coli (STEC).

Zelyas N, Poon A, Patterson-Fortin L, Johnson RP, Lee W, Chui L.

Diagn Microbiol Infect Dis. 2016 Jul;85(3):302-308. doi: 10.1016/j.diagmicrobio.2016.03.013. Epub 2016 Mar 15.


Detection, Characterization, and Typing of Shiga Toxin-Producing Escherichia coli.

Parsons BD, Zelyas N, Berenger BM, Chui L.

Front Microbiol. 2016 Apr 12;7:478. doi: 10.3389/fmicb.2016.00478. eCollection 2016. Review.


Expansion of Shiga Toxin-Producing Escherichia coli by Use of Bovine Antibiotic Growth Promoters.

Kim JC, Chui L, Wang Y, Shen J, Jeon B.

Emerg Infect Dis. 2016 May;22(5):802-9. doi: 10.3201/eid2205.151584.


Comparing the epidemiology of hospital-acquired methicillin-resistant Staphylococcus aureus clone groups in Alberta, Canada.

Bruzzese S, Bush K, Leal J, Kim J, Vickers DM, Rusk A, Fathima S, Li V, Chui L, Louie M, Henderson E.

Epidemiol Infect. 2016 Jul;144(10):2184-90. doi: 10.1017/S0950268816000376. Epub 2016 Mar 7.


Shiga Toxin-Producing Escherichia coli Infection, Antibiotics, and Risk of Developing Hemolytic Uremic Syndrome: A Meta-analysis.

Freedman SB, Xie J, Neufeld MS, Hamilton WL, Hartling L, Tarr PI; Alberta Provincial Pediatric Enteric Infection Team (APPETITE), Nettel-Aguirre A, Chuck A, Lee B, Johnson D, Currie G, Talbot J, Jiang J, Dickinson J, Kellner J, MacDonald J, Svenson L, Chui L, Louie M, Lavoie M, Eltorki M, Vanderkooi O, Tellier R, Ali S, Drews S, Graham T, Pang XL.

Clin Infect Dis. 2016 May 15;62(10):1251-1258. doi: 10.1093/cid/ciw099. Epub 2016 Feb 24. Review.


Comparison of decoding resolution of standard and high-density electrocorticogram electrodes.

Wang PT, King CE, McCrimmon CM, Lin JJ, Sazgar M, Hsu FP, Shaw SJ, Millet DE, Chui LA, Liu CY, Do AH, Nenadic Z.

J Neural Eng. 2016 Apr;13(2):026016. doi: 10.1088/1741-2560/13/2/026016. Epub 2016 Feb 9.


The utility of multiple molecular methods including whole genome sequencing as tools to differentiate Escherichia coli O157:H7 outbreaks.

Berenger BM, Berry C, Peterson T, Fach P, Delannoy S, Li V, Tschetter L, Nadon C, Honish L, Louie M, Chui L.

Euro Surveill. 2015;20(47). doi: 10.2807/1560-7917.ES.2015.20.47.30073.



Or C, Chui L, Fallah N, Forooghian F.

Retina. 2016 Feb;36(2):264-71. doi: 10.1097/IAE.0000000000000795.


The molecular epidemiology of incident methicillin-resistant Staphylococcus aureus cases among hospitalized patients in Alberta, Canada: a retrospective cohort study.

Bush K, Leal J, Fathima S, Li V, Vickers D, Chui L, Louie M, Taylor G, Henderson E.

Antimicrob Resist Infect Control. 2015 Sep 14;4:35. doi: 10.1186/s13756-015-0076-1. eCollection 2015.


Multi-Province Listeriosis Outbreak Linked to Contaminated Deli Meat Consumed Primarily in Institutional Settings, Canada, 2008.

Currie A, Farber JM, Nadon C, Sharma D, Whitfield Y, Gaulin C, Galanis E, Bekal S, Flint J, Tschetter L, Pagotto F, Lee B, Jamieson F, Badiani T, MacDonald D, Ellis A, May-Hadford J, McCormick R, Savelli C, Middleton D, Allen V, Tremblay FW, MacDougall L, Hoang L, Shyng S, Everett D, Chui L, Louie M, Bangura H, Levett PN, Wilkinson K, Wylie J, Reid J, Major B, Engel D, Douey D, Huszczynski G, Di Lecci J, Strazds J, Rousseau J, Ma K, Isaac L, Sierpinska U.

Foodborne Pathog Dis. 2015 Aug;12(8):645-52. doi: 10.1089/fpd.2015.1939. Epub 2015 Jun 3.


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