See you next year in Calgary!

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TP001- TP097

Thursday, April 11

11:00 – 17:30
Poster Viewing
11:45 – 12:45
Poster Presenters at Their Posters to Answers Questions

TP001
Culture-independent detection of Helicobacter pylori antimicrobial resistance markers in stool by metagenomic sequencing

Kaye Quizon1, Matthew Walker1, Shannon HC Eagle2, Sara Christianson1, Jillian Rumore1, Natalie Knox1, David Alexander3,4, Jessica Forbes5, Jessica Minion6, Andrew G McArthur7,8, Seth R Shaffer9,10, Charles Bernstein9,10, Aleisha Reimer1

1Public Health Agency of Canada, Winnipeg, MB, Canada. 2Public Health Agency of Canada, Guelph, ON, Canada. 3Cadham Provincial Laboratory, Winnipeg, MB, Canada. 4Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB, Canada. 5Eastern Ontario Regional Laboratory Association, Ottawa, ON, Canada. 6Roy Romanow Provincial Laboratory, Regina, SK, Canada. 7Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada. 8Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada. 9University of Manitoba IBD Clinical and Research Centre, Winnipeg, MB, Canada. 10Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada

TP002
Validation of Copan Amies gel swabs for the detection of Streptococcus pyogenes in throats on GeneXpert Xpress Group A Strep assay

Melissa Caza1,2,3, Matisse Harms1, Amanda Wilmer1,2

1Kelowna General Hospital, Kelowna, BC, Canada. 2University of British Columbia, Vancouver, BC, Canada. 3University of British Columbia Okanagan, Kelowna, BC, Canada

TP003
Determining the limit of detection of antibiotic broth-enrichment, culture-based, and PCR-based methods for the detection of vancomycin-resistant enterococci and carbapenemase-producing Enterobacterales

Jay Wieler1,2,3, Ceylon Simon1, Susan M Poutanen1,2,4

1Department of Microbiology, University Health Network & Sinai Health, Toronto, ON, Canada. 2Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada. 3Department of Microbiology, University of Manitoba, Winnipeg, MB, Canada. 4Department of Medicine, University of Toronto, Toronto, ON, Canada

TP004
Evaluation of TB Xpert® MTB/Rif Ultra assay on formalin-fixed paraffin-embedded tissues for Mycobacterium tuberculosis diagnosis

Calvin KF Lo1, Dale Purych2, Inna Sekirov3, Jaswinder Khattra2, Trevor J Hird3, Shazia Masud2

1Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada. 2Department of Pathology and Laboratory Medicine, Surrey Memorial Hospital, Fraser Health, Surrey, BC, Canada. 3BC Centre for Disease Control, Public Health Laboratory, Vancouver, BC, Canada

TP005
Validation of a two commercial serology assays for the detection of antibodies against mpox virus

Ana Citlali Marquez1,2, Gabrielle Angelo P Cortez1,2, Danielle Luk1,2, Tahereh Valadbeigy1,2, Agatha N Jassem1,2

1The University of British Columbia, Vancouver, BC, Canada. 2BC Centre for Disease Control, Vancouver, BC, Canada

TP006
Development of an Amplicon-based Whole Genome Sequencing Assay for Respiratory Syncytial Virus

Henry Wong1,2, Brittany Rand1, Nick B Buchner1, Calvin P Sjaarda1,2, Prameet M Sheth1,2

1Kingston Health Sciences Centre, Kingston, ON, Canada. 2Queen’s University, Kingston, ON, Canada

TP007
Evaluation of the QIAstat-Dx® Respiratory SARS-CoV-2 Panel for the detection of viral and bacterial pathogens in nasopharyngeal swab specimens

Melissa Caza1,2,3, Jen Hayman3, Agatha Jassem4, Amanda Wilmer1,2

1Kelowna General Hospital, Kelowna, BC, Canada. 2University of British Columbia, Vancouver, BC, Canada. 3University of British Columbia Okanagan, Kelowna, BC, Canada. 4BC Centre for Disease Control Public Health Laboratory, Vancouver, BC, Canada

TP008
Detection of bacteria directly from synovial fluid using digital PCR: A proof of concept study

Corrie R Belanger, Kerstin Locher, Billie Velapatino, Marthe K Charles

Vancouver Coastal Health, Vancouver, BC, Canada

TP009
Change in the Streptococcus pyogenes (group A streptococcus, GAS) positivity rates among throat swabs submitted from community settings in British Columbia

Eugene YH Yeung1,2, Diana J Whellams1,2

1University of British Columbia, Vancouver, BC, Canada. 2Lifelabs, Surrey, BC, Canada

TP010
To beat or not to beat–An exploratory assessment of two commercial fecal DNA extraction methods with and without bead-beating for quantitative polymerase chain reaction-based detection of gastrointestinal protozoa

LingHui David Su1, Martin Cheung1, Kelly Lozinski1, Melissa Caza2,3, Amanda Wilmer2,3, Navdeep Chahil1, Catherine Hogan1,3

1BC Centre for Disease Control, Vancouver, BC, Canada. 2Interior Health, Vancouver, BC, Canada. 3University of British Columbia, Vancouver, BC, Canada

TP011
Cerebrospinal fluid galactomannan detection for the diagnosis of central nervous system aspergillosis: a diagnostic test accuracy systematic review and meta-analysis

Adam S Komorowski1,2, Clayton W Hall1, Sukhreet Atwal3, Rochelle Johnstone2,4, Robert Walker III5, Dominik Mertz2,6, Eva Piessens6, Deborah Yamamura1,6, Ekkehard M Kasper5,7

1Medical Microbiology, Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada. 2Department of Health Research Methodology, Evidence, and Impact, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada. 3Michael G. DeGroote School of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada. 4Transplant Infectious Diseases and Ajmera Transplant Centre, University Health Network, University of Toronto, Toronto, ON, Canada. 5Department of Neurosurgery, Boston University, Boston, MA, USA. 6Division of Infectious Diseases, Department of Medicine, McMaster University, Hamilton, ON, Canada. 7Department of Surgery, McMaster University, Hamilton, ON, Canada

TP012
Low-level (< 1 x 106 cfu/L) Streptococcus agalactiae bacteriuria in pregnancy is significantly associated with antepartum colonization

Philippe R Lagacé-Wiens1,2, Heather J Adam1,2, Ariel Ang1, Yasmine ElSalakawy2, Vanessa Poliquin2

1Shared Health, Winnipeg, MB, Canada. 2University of Manitoba, Winnipeg, MB, Canada

TP013
Evaluation of the NG-Test® CTX-M MULTI lateral flow immunoassay

Geneviève M Amaral1, Calvin KF Lo1, Jennifer Bilawka2, Gordon Ritchie1,2, Marc G Romney1,2, Willson Jang2, Christopher F Lowe1,2, Nancy Matic1,2, Michael Payne1,2, Aleksandra Stefanovic1,2

1Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada. 2Division of Medical Microbiology and Virology, St. Paul’s Hospital, Vancouver, BC, Canada

TP014
Investigating the performance of typhoid diagnostics and molecular analysis of Salmonella enterica virulence

Emmanuel Kweku Sam1,2

1West African Centre for Cell Biology of Infectious Pathogens, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana. 2Department of Biochemistry Cell and Molecular Biology, University of Ghana, Accra, Ghana

TP015
Evaluation of the Seegene STARlet-AIOSTM compared to the conventional STARlet system using the AllplexTM Entero-DR Assay

Jay Wieler1,2,3, Ceylon Simon1, Susan M Poutanen1,2,4

1Department of Microbiology, University Health Network & Sinai Health, Toronto, ON, Canada. 2Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada. 3Department of Microbiology, University of Manitoba, Winnipeg, MB, Canada. 4Department of Medicine, University of Toronto, Toronto, ON, Canada

TP016
Monitoring of Legionella pneumophila outbreaks through Next Generation Sequencing-based genotyping: comparison assessment with PFGE and SBT

Cindy Lalancette, Éric Fournier

Laboratoire de santé publique du Québec, Sainte-Anne-de-Bellevue, Québec, Canada

TP017
Candida auris identification using CHROMagar™ Candida Plus and qPCR

Xiao Rui (Lisa) Li1, Jonelle Tinsley1, David C Alexander2,3, Tanis Dingle4,5, Philippe J Dufresne6, Linda M Hoang7, Julianne V Kus8,9, Caroline Sheitoyan-Pesant10, Amrita Bharat1,2

1National Microbiology Laboratory Branch, Public Health Agency of Canada, Winnipeg, MB, Canada. 2Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB, Canada. 3Cadham Provincial Laboratory, Diagnostic Services, Shared Health, Winnipeg, MB., Canada. 4Alberta Precision Laboratories – Public Health Laboratory, Calgary, AB, Canada. 5Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada. 6Laboratoire de santé publique du Québec, Sainte-Anne-de-Bellevue, QC, Canada. 7BC Centre for Diseases Control, Vancouver, BC, Canada. 8Public Health Ontario, Toronto, ON, Canada. 9Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada. 10Centre hospitalier universitaire Dr-Georges-L.-Dumont, Moncton, NB, Canada

TP018
Performance evaluation of complete urine culture categorization by WASPLab PhenoMATRIX

Leah A Brown, Alexandra Parks, Lee W Goneau

Dynacare Laboratories, Brampton, Canada

TP019
Xpert MTB/RIF Ultra performance on bronchoscopy specimens for tuberculosis (TB) diagnosis in a low-incidence setting

Cole Schonhofer1, Jennifer Bilawka2, Scott Apperley3, Christopher F Lowe2,4, Michael Payne2,4, Nancy Matic2,4, Victor Leung2,4, Marc G Romney2,4, Aleksandra Stefanovic2,4

1Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. 2Division of Medical Microbiology and Virology, St. Paul’s Hospital, Providence Health Care, Vancouver, BC, Canada. 3Division of Respiratory Medicine, St. Paul’s Hospital, Providence Health Care, Vancouver, BC, Canada. 4Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada

TP020
TaqMan PACMAN: A simple molecular approach for positive rapid antigen test confirmation during periods of low prevalence

Gregory R McCracken1, Glenn Patriquin1, Todd F Hatchette1, Ross J Davidson1, Barbara Goodall2, Lisa Barrett2, James MacDonald1, Charles Heinstein1, Janice Pettipas3, John Ross4, Jason J LeBlanc1

1Division of Microbiology, Department of Pathology and Laboratory Medicine, Nova Scotia Health, Halifax, NS, Canada. 2Department of Medicine, Dalhousie University, Halifax, NS, Canada. 3Nova Scotia Provincial Public Health Laboratory Network (PPHLN), Halifax, NS, Canada. 4Praxes Medical Group, Halifax, NS, Canada 

TP021
Incidence rates and serotype distribution of human enteroviruses in patients with central nervous system (CNSI) infections in South-central Ontario

Matthew D Surette1,2, Candy Rutherford3, Marek Smieja1,2,3, Mohammad R Hasan1,2,3

1McMaster University, Hamilton, ON, Canada. 2Research Institute of St. Joe’s, Hamilton, ON, Canada. 3Hamilton Regional Laboratory Medicine Program, Hamilton, ON, Canada

TP022
Comparison of fosfomycin (FOS) MICs generated by reference agar dilution (AD) testing and Etest® for pathogens submitted to a Canadian fosfomycin susceptibility testing service

George G Zhanel, Nancy M Laing, Melanie R Baxter, Heather J Adam, James A Karlowsky

University of Manitoba, Winnipeg, MB, Canada

TP023
Performance of a novel chromogenic agar for primary isolation of pathogenic beta-hemolytic streptococci from throat swabs

Claudine Desruisseaux1,2, Abdulrahman Almodahka2, Rebecca Buckman1, Kim Sy1, Vincent Tang1, Charlene Porter1, Marthe K Charles1,2

1Division of Medical Microbiology and Infection Control, Department of Pathology and Laboratory Medicine, Vancouver General Hospital, Vancouver Coastal Health, Vancouver, BC, Canada. 2Faculty of Medicine, Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, BC, Canada

TP024
Evaluation of the Seegene STARlet-AIOS™ automation system for respiratory virus testing

Lauren Zoppa1, Marc Desjardins1,2,3, Leanne Mortimer1,3,4, Eric Eckbo1,3,4

1Eastern Ontario Regional Laboratory Association, Ottawa, ON, Canada. 2The Ottawa Hospital, Division of Microbiology, Ottawa, ON, Canada. 3University of Ottawa, Department of Pathology & Laboratory Medicine, Ottawa, ON, Canada. 4Children’s Hospital of Eastern Ontario, Division of Microbiology, Ottawa, ON, Canada

TP025
Evaluation and comparison of five commercial stool antigen assays for the diagnosis of Helicobacter pylori

Lise Cormier1, Tammie Wilcox-Carrier1, Farhan M Khan1, Fabien Rallu2, Chelsey Ellis1

1The Moncton Hospital, Horizon Health Network, Moncton, NB, Canada. 2Hôpital Charles-Le Moyne, Greenfield Park, QC, Canada

TP026
Comparison of genetic resolution in clinical Mycobacterium tuberculosis complex isolates by genotyping and whole genome sequencing methods

Carla Duncan1, Melissa Richard-Greenblatt1,2, Karen Lam1, Angela Ma1

1Public Health Ontario, Toronto, ON, Canada. 2The Hospital for Sick Children, Toronto, ON, Canada

TP027
Bruker™ MALDI-ToF MS Compass Library Revision K Accurately Discriminates Streptococcus pyogenes from Streptococcus dysgalactiae/canis

Philippe R.S. Lagacé-Wiens1,2, Heather J Adam1,2, Nicholas Kontzie1, Peter Pieroni1, James A Karlowsky1,2

1Shared Health, Winnipeg, MB, Canada. 2University of Manitoba, Winnipeg, MB, Canada

TP028
Evaluation of the Xpert® MTB/RIF Ultra for the detection of Mycobacterium tuberculosis in cerebrospinal fluids

Kerstin Locher1,2, Corrie R Belanger1,2, Billie Velapatiño1,2, Marthe K Charles1,2

1Division of Medical Microbiology, Vancouver Coastal Health, Vancouver, BC, Canada. 2Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada

TP029
Increased seroprevalence of Lyme disease in Nova Scotia: A ten-year update

Glenn Patriquin1,2, Carrie Phillips2,3, Colleen Jackson2, Jennifer Cram4, Linda Passerini4, Kathryn McIsaac4, Todd F Hatchette1,2, David Haldane1,2,3

1Department of Pathology, Dalhousie University, Halifax, NS, Canada. 2Department of Pathology and Laboratory Medicine, Nova Scotia Health, Halifax, NS, Canada. 3Provincial Public Health Laboratory Network, Halifax, NS, Canada. 4Department of Health and Wellness, Halifax, NS, Canada

TP030
Optimizing Leishmania diagnostics: an integrated molecular approach for accurate detection and species identification

Adriana C Delgado1, Alan G O’Dwyer1, Tracy Lee1, David Su LingHui1, Kelly Lozinski1, John R Tyson1,2, Martin Cheung1, Kathleen Kolemainen1, Frankie Tsang1, Navdeep Chahil1, James Zlosnik1, Natalie Prystajecky1, Muhammed Morshed1,2, Catherine A Hogan1,2

1BCCDC Public Health Laboratory, Vancouver, BC, Canada. 2Dept. of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada

TP031
Workflow comparison and evaluation of an automated instrument for handling sample preparation in clinical laboratory

Michael Chan1, Amy Tran1, Colin Howarth1, Susanna Ye1, Frankie Tsang1, Agatha Jassem1,2

1British Columbia Centre for Disease Control, Vancouver, BC, Canada. 2University of British Columbia, Vancouver, BC, Canada

TP032
Comparing routine C. difficile testing methods to identify C. difficile colonization in asymptomatic patients prior to hematopoietic cell transplantation

Nicole Janusz1,2, Leanne Mortimer2,3, Tamara Leite4, Amanda Carroll1, Natasha Kekre1,2,4, Michael Kennah1,2, Austin Yan1,2, Jaxon Senechal2, C. Arianne Buchan1,2,4, Derek MacFadden1,2,4

1The Ottawa Hospital, Ottawa, ON, Canada. 2The University of Ottawa, Ottawa, ON, Canada. 3The Eastern Ontario Regional Laboratory Association, Ottawa, ON, Canada. 4The Ottawa Hospital Research Institute, Ottawa, ON, Canada

TP033
Enhancing influenza surveillance through whole genome sequencing: Implications for local, national, and global pathogen control

Kara Loos1,2, Ryan McDonald2, Keith MacKenzie2, Meredith Faires2, Stefani Kary1,2, Rachel DePaulo1,2, Toni Hansen2, Laura Klassen2, Amanda Lang2, Jessica Minion2

1Public Health Agency of Canada, Winnipeg, MB, Canada. 2Saskatchewan Health Authority, Regina, SK, Canada

TP034
Comparative performance of the BioFire® FilmArray® respiratory panel 2.1 and the GeneXpert® Xpert®  SARS-CoV-2/Flu/RSV assays for the detection of respiratory viruses in children using nasopharyngeal swabs

Abdulrahman Almodahka1, Hannah Nelson2, Iryna Kayda2, Maggie Woo Kinshella3, Alice Liu4, Amber Johnson4, Neil Desai5, Miguel Imperial1,4, Jocelyn A Srigley1,4, Jonathan Gubbay1,4, David M Goldfarb1,4

1Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada. 2Experimental Medicine Graduate Program, University of British Columbia, Vancouver, BC, Canada. 3Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada. 4Division of Medical Microbiology, BC Children’s Hospital and BC Women’s Hospital & Health Centre, Vancouver, BC, Canada. 5Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada

TP035
Detection of atypical bacteria, including Mycoplasma pneumoniae, 2013-2023

Agatha Jassem1,2, Tess MacIntyre1,2, Yin Chang1, Frankie Tsang1, Janet Fung1, Mel Krajden1,2, Linda Hoang1,2

1British Columbia Centre for Disease Control, Provincial Health Services Authority, Vancouver, BC, Canada. 2Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada

TP036
Multicenter experience on the diagnostic yield of multiplex bacterial PCR for sterile site infections

Mohammad R Hasan1,2,3, Patrick Tang4,5, Anju Sharma4, Jayaratne Padman1,2, Candy Rutherford1, Sathyavathi Sundararaju4, Daniela Leto1,2, Deborah Yamamura1,2, Andres Perez-Lopez4,5, Marek Smieja1,2,3

1Hamilton Regional Laboratory Medicine Program (HRLMP), Hamilton, Canada. 2McMaster University, Hamilton, Canada. 3Research Institute of St. Joe’s, Hamilton, Canada. 4Sidra Medicine, Doha, Qatar. 5Weill Cornell Medicine – Qatar, Doha, Qatar

TP037
Public Health Agency of Canada’s measles and mumps molecular proficiency panel program: A retrospective study examining past results from Canadian laboratories

Vanessa Zubach, Samar Ashfaq, Joanne Hiebert

Measles Mumps and Rubella Unit, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada

TP038
Development and Validation of a Low-Cost Semi-Automated High-Throughput Direct Qualitative Loop Mediated Amplification Assay for the Detection of Streptococcus pyogenes from Throat Swab Specimens.

Barbara Chow1, Dylan Pillai1,2, Michael Groeschel1,2

1Alberta Precision Laboratories, Calgary, AB, Canada. 2University of Calgary, Calgary, AB, Canada

TP039
Development of a Real-Time PCR assay for the detection of Aspergillus species from bronchial specimens

Billie Velapatino1,2, Kerstin Locher1,2, Sean Ling1,2, Corrie R Belanger1,2, Marthe K Charles1,2

1Division of Medical Microbiology and Infection Prevention and Control, Vancouver Coastal Health, Vancouver, BC, Canada. 2Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada

TP040
Carbapenemase-producing Enterobacterales in Alberta from 2013–2023

Ashley N Williams1,2, Matthew A Croxen1,2, Ashwin Deo2, Christina Yu2, Colin Lloyd2,3, Hilary Trevor2, Osahon Obasuyi2, Petya Koleva3,4, Sandy Shokoples2, Silas Rotich2, Stefan Gavriliuc2, Vincent Li2, Xiaoli Dong4, Laura Mataseje3, Tanis C Dingle4,5

1University of Alberta, Edmonton, AB, Canada. 2Alberta Precision Labs – Public Health Laboratory, Edmonton, AB, Canada. 3National Microbiology Laboratory – Public Health Agency of Canada, Winnipeg, MB, Canada. 4Alberta Precision Labs – Public Health Laboratory, Calgary, AB, Canada. 5University of Calgary, Calgary, AB, Canada

TP041
Status of detection of Pneumocystis jiroveci in Canadian clinical microbiology laboratories by the National Molecular Group (NMG) survey

Greg J German1,2,3, Yan Chen1,2

1Unity Health Toronto, Toronto, ON, Canada. 2Department of Laboratory Medicine and Pathobiology, Temetry Faculty of Medicine, University of Toronto, Toronto, ON, Canada. 3Li Ka Shing Knowledge Institute, Toronto, ON, Canada

TP042
Evaluation of a commercial lateral flow immunochromatographic assay, the Alere SA PBP2a test, for detection of Penicillin binding protein 2a (PBP2a) in coagulase negative staphylococcus species

Esraa Al-Fraihat1,2, Taylor Laughlin1, Niel Kane1, Larissa M Matukas1,2

1Unity Health Toronto, Toronto, ON, Canada. 2University of Toronto, Toronto, ON, Canada

TP043  WITHDRAWN

TP044
Validation of the VITEK®2 AST-N391 susceptibility testing card compared to disc diffusion following 2022 CLSI M100

Yerin R Lee1,2, Camilo Castellanos Sanchez2, Ceylon Simon2, Susan M Poutanen1,2

1Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada. 2Department of Microbiology, University Health Network/ Sinai Health, Toronto, ON, Canada

TP045
Trends in antimicrobial resistance among Gram-negative organisms in Toronto, Canada between January 2013 and December 2022 – A notable rise in MDRO and XDRO Klebsiella pneumoniae

Yerin R Lee1,2, Camilo Castellanos Sanchez2, Connie TY Xie2, Ceylon Simon2, Susan M Poutanen1,2

1Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada. 2Department of Microbiology, University Health Network/ Sinai Health, Toronto, ON, Canada

TP046
Investigating clinical microbiology performance in an external quality assessment (EQA) program: A 5-year cross-sectional analysis

Jennifer Wu1, Veronica Restelli2, Md Saiful Alam3, Selvarani Vimalanathan2, Lucy A Perrone1

1UBC, CMPT, Vancouver, BC, Canada. 2CMPT, Vancouver, BC, Canada. 3UBC, Vancouver, BC, Canada

TP047
Hemophilus influenzae screening and isolation in asymptomatic Cystic Fibrosis patients: Is it worth it? A narrative review

Arunima S Dalai, Prameet M Sheth

Queen’s University, Kingston, Canada

TP048
Mycobacterium tuberculosis pseudo-outbreak due to laboratory cross-contamination – An epidemiological investigation and phylogenetic analysis

Nayla Léveillé1, Floriane Point2, Josée Houde3, Michael Hall4,5, Hafid Souhaline6, Marie-Andrée Leblanc7, Pierre-Marie Akochy8, Simon Grandjean Lapierre2,9

1Faculté de Médecine, Département de Médicine, Université de Montréal, Montréal, QC, Canada. 2Centre de recherche du centre hospitalier de l’université de Montréal, Montréal, QC, Canada. 3Centre hospitalier de l’université de Montréal, Montréal, QC, Canada. 4European Bioinformatics Institute (EMBL-EBI), Cambridgeshire, United Kingdom. 5The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Australia. 6National Microbiology Laboratory, Winnipeg, MB, Canada. 7Direction générale adjointe de la protection de la santé publique, Ministère de la Santé et des Services sociaux, Québec, QC, Canada. 8Laboratoire national de mycobacteriologie – Laboratoire de Santé Publique du Québec (LSPQ, Sainte-Anne-de-Bellevue, QC, Canada. 9Faculté de Médecine, Département de Microbiologie, infectiologie et immunologie, Université de Montréal, Montréal, QC, Canada

TP049
Transmission of Mycobacterium tuberculosis, a problem inside Colombian prisons

Mariana Herrera Diaz1, Diana Marin2, Lucelly Lopez2, Teresa Realpe3, Uriel Mejia3, Nataly Alvarez3, Luisa Arroyave4, Nestor Rueda5, Yoav Keynan1, Maria Patricia Arbelaez6, Zulma Rueda1

1University of Manitoba, Winnipeg, MB, Canada. 2Iniversidad Pontificia Bolivariana, Medellin, Antioquia, Colombia. 3Corporación para Investigaciones Biológicas, Medellin, Antioquia, Colombia. 4National Collaborating Center for Infectious Diseases, Winnipeg, MB, Canada. 5Bluemethane, Drachten, Netherlands. 6Universidad de Antioquia, Medellin, Antioquia, Colombia

TP050
Evaluation of a provincial Hepatitis C Virus nucleic acid testing reflex program

Inaru Enriquez1,2, Frankie Tsang1, Tamara Pidduck1, Annie Mak1, Kenneth Chu1, Andrew Balbirnie1, Ron Chow1, Kingsley Gunadasa1, Yin Chang1, Agatha Jassem1,2

1British Columbia Centre for Disease Control, BC, Canada. 2University of British Columbia, BC, Canada

TP051  WITHDRAWN

TP052
Evaluation of Digital PCR technology for the detection of Mycobacterium tuberculosis DNA in formalin-fixed paraffin-embedded tissues

Billie Velapatino1,2, Kerstin Locher1,2, Corrie R Belanger1,2, Marthe K Charles1,2

1Vancouver Coastal Health, Vancouver, BC, Canada. 2Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada

TP053
Replacing the CLSI disk potentiation assay with a semi-automated, cost- effective molecular assay for the identification of ESBL producing Escherichia coli, Klebsiellae spp and Proteus mirabilis from surveillance specimens

Candy C Rutherford1, Padman Jayaratne1,2, Mark Gaskin1

1Hamilton Regional Lab Medicine Program, Hamilton, Ontario, Canada. 2McMaster University, Hamilton, Ontario, Canada

TP054
Evaluation of the utility of secondary confirmatory testing for Neisseria gonorrhoeae identification from culture

Ellen G Avery1, Joseph J Zeppa1, Donald B Duncan2,3, Kevin R Barker1,4,5, Ramzi Fattouh1,6, Larissa Matukas1,6, Candy Rutherford3, Ana Cabrera7,8,9, Prameet M Sheth10,11,12, Vanessa Tran1,13, Lee Goneau1,14, Kevin Katz1,15,16, Xena X Li15,16, Robert Kozak1,15,16

1Department of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada. 2Division of Medical Microbiology, Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada. 3Hamilton Regional Laboratory Program, Hamilton, ON, Canada. 4Division of Microbiology, Department of Laboratory Medicine and Genetics, Trillium Health Partners, Mississauga, ON, Canada. 5Institute for Better Health, Trillium Health Partners, Mississauga, ON, Canada. 6Division of Microbiology, Department of Laboratory Medicine, St. Michael’s Hospital, Unity Health Toronto, Toronto, ON, Canada. 7Pathology and Laboratory Medicine Department, London Health Sciences Centre, London, ON, Canada. 8Pathology and Laboratory Medicine Department, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada. 9Microbiology and Immunology Department, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada. 10Division of Microbiology and Infectious Diseases, Kingston Health Sciences Center, Kingston, ON, Canada. 11Department of Pathology and Molecular Medicine, Queen’s University, Kingston, ON, Canada. 12Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON, Canada. 13Public Health Ontario, Toronto, ON, Canada. 14Dynacare Laboratory, Brampton, ON, Canada. 15Shared Hospital Laboratory, Toronto, ON, Canada. 16Laboratory Medicine and Molecular Diagnostics, Sunnybrook Health Sciences Centre, Toronto, ON, Canada

TP055
Road to efficient HIV diagnostic testing: An evaluation of first-time HIV antibody-positive patients receiving follow-up testing in Alberta, Canada, from 2018 to 2023

N Joelle Kasongo1,2, L Alexa Thompson1,2,3, William Stokes1,4,5, Carmen L Charlton1,2,3,5,6

1Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada. 2Li Ka Shing Institute of Virology, University of Alberta, Edmonton, AB, Canada. 3Women and Children’s Health Research Institute (WCHRI), University of Alberta, Edmonton, AB, Canada. 4Division of Infectious Diseases, Department of Medicine, University of Alberta, Edmonton, AB, Canada. 5Alberta Precision Laboratories, Edmonton, AB, Canada. 6Canadian Blood Services (CBS), Edmonton, AB, Canada

TP056
An Enhanced National SARS-CoV-2 Surveillance Program:  Bringing together genetic and functional characterization of circulating strains to monitor viral antigenicity and the effectiveness of current antiviral therapeutics

Charlene Ranadheera, Mark Mendoza, Matthew Suderman, Johnny Ung, Orlando Perez, Gaby Makowski, Nathalie Bastien

National Microbiology Laboratory Branch, Winnipeg, MB, Canada

TP057
A pilot study to use a viability real-time PCR assay as a diagnostic tool for patients experiencing Salmonellosis

Surangi Heenetimulla Thilakarathna1, Linda Chui1,2

1Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada. 2Alberta Precision Laboratories, Public Health Laboratory (ProvLab), Edmonton, AB, Canada

TP058
Testing for extragenital Neisseria gonorrhoeae and Chlamydia trachomatis: at-home pharyngeal and rectal self-swabs are non-inferior to those completed in healthcare settings

Lauren Orser1,2, Vanessa Tran3,4, Patrick O’Byrne1,2, Abigail Kroch3,5,6 , Melissa Bonnetsmueller2, Maan Hasso3, Alexandra Musten1

1University of Ottawa School of Nursing, Ottawa, ON, Canada. 2Ottawa Public Health Sexual Health Clinic, Ottawa, ON, Canada. 3Public Health Ontario, Toronto, ON, Canada. 4Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada. 5Ontario HIV Treatment Network, Toronto, ON, Canada. 6Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada

TP059
A challenging O166:H15 STEC strain isolation from patients’ stools

Surangi Heenetimulla Thilakarathna1, Linda Chui1,2

1Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada. 2Alberta Precision Laboratories, Public Health Laboratory (ProvLab), Edmonton, AB, Canada

TP060
Post-pandemic recrudescence of invasive streptococcal infection: the new epidemiology of pneumococcal bacteremia

Geneviève M Amaral1, Ceinwen Pope2, Lawrence Sham1, Meena Dawar2, Martin St-Jean2, Aleksandra Gara3, Elisa Lloyd-Smith3, Irene Martin4, Sean Ling1,5, Claudine Desruisseaux1,5, Heather Glassman1,5, Marthe K Charles1,5

1Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada. 2Public Health, Vancouver Coastal Health, Vancouver, BC, Canada. 3Quality and Patient Safety, Vancouver Coastal Health, Vancouver, BC, Canada. 4National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada. 5Division of Medical Microbiology and Infection Prevention and Control, Vancouver Coastal Health, Vancouver, BC, Canada

TP061
Diagnosis of Helicobacter pylori Infection in British Columbia – Serology vs. Urea Breath Test

Miguel Imperial1,2, Kennard Tan2,3, Chris Fjell2,4, Yin Chang4, Mel Krajden2,4, Michael T Kelly2,5, Muhammad Morshed2,4

1BC Women’s Hospital and Health Centre, Vancouver, BC, Canada. 2Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada. 3Royal Jubilee Hospital, Vancouver, BC, Canada. 4BC Centre for Disease Control – Public Health Laboratory, Vancouver, BC, Canada. 5Microbiology and Molecular Diagnostics, Life Labs, Vancouver, BC, Canada

TP062
Discordance in rifampin resistance determination between a commercial molecular test, whole genome sequencing, and phenotypic testing, for a provincially circulating Mycobacterium tuberculosis strain

Adrian Kense1, Danielle Jorgensen1, Trevor Hird1, Rupinder KhunKhun1, Mimi Lam2, Pamela Kibsey2, Mabel Rodrigues1, Inna Sekirov1,3

1BC Center for Disease Control Public Health Laboratory, Vancouver, BC, Canada. 2Royal Jubilee Hospital Microbiology Laboratory, Victoria, BC, Canada. 3University of British Columbia, Vancouver, BC, Canada

TP063
Impact on turnaround time for Herpes simplex virus (HSV-1/2) testing following implementation of the BioFire FilmArray® Meningitis/Encephalitis Panel in a pediatric hospital

Emma Finlayson-Trick1, Eric Eckbo2, Jonathan Gubbay2, Jocelyn A Srigley2, Miguel Imperial2, David M Goldfarb1,2

1University of British Columbia, Department of Pathology & Laboratory Medicine, Vancouver, BC, Canada. 2British Columbia Children’s Hospital and British Columbia Women’s Hospital & Health Centre, Department of Pathology & Laboratory Medicine, Division of Microbiology, Virology, & Infection Control, Vancouver, BC, Canada

TP064
Theoretical assessment of BioFire Blood Culture Identification Panel 2 for positive blood culture identification in a tertiary care pediatric/obstetric hospital

Inna Sekirov1,2, Suk Dhaliwal1, Jonathan Gubbay1,2, Jocelyn Srigley1,2, Miguel Imperial1,2, Ryan Penny1, Nicole Watson1, Tammy Chen1, David Goldfarb1,2

1BC Children’s and Women’s Hospital Microbiology Laboratory, Vancouver BC, Canada. 2University of British Columbia, Vancouver BC, Canada

TP065
Development of high-throughput extraction methodology for Legionella pneumophila to support outbreak response in Canada

Jennifer R Tanner1, Shari Tyson2, Mark Unger1, Tamara Burdz1, Dmytro Lyubashenko1, Kalissa Joanisse1, Kym Antonation3

1Special Bacteriology Unit, Bioforensics Assay Development and Diagnostics Laboratory Section, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada. 2Robotics Support Unit, Emergency Operations and Response Section, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada. 3Bioforensics Assay Development and Diagnostics Laboratory Section, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada

TP066
Factors associated with paediatric COVID-19 mortality: A Paediatric Investigators Collaborative Network on Infections in Canada (PICNIC) Study

Michael Prodanuk1,2, Michelle Barton3, Joan Robinson4, Alastair McAlpine5, Lynne Li5, Sarah Khan6, Tisha Parikh6, Corrine Sin Quee-Brown7, Marie-Astrid Lefebvre8, Derek Stephens1, Upton Allen1,2

1The Hospital for Sick Children, Toronto, ON, Canada. 2University of Toronto, Toronto, ON, Canada. 3London Health Sciences Centre, London, ON, Canada. 4Stollery Children’s Hospital, Edmonton, AB, Canada. 5BC Children’s Hospital, Vancouver, BC, Canada. 6McMaster Children’s Hospital, Hamilton, ON, Canada. 7Princess Margaret Hospital, Nassau, Bahamas. 8Montreal Children’s Hospital, Montreal, QC, Canada

TP067
Evaluation of self/parent collected oral nasal swabs for respiratory illness in symptomatic children

Hannah Nelson1, Iryna Kayda1, Nicole Watson2, Mai-Lei Woo Kinshella3, Karen Mooder4, Jennifer Cochrane4, Neil Desai5, Michelle Dittrick2, Linda Hoang6,7, David M Goldfarb2,4,7

1Experimental Medicine Graduate Program, University of British Columbia, Vancouver, BC, Canada. 2Department of Pathology and Laboratory Medicine, BC Children’s and Women’s Hospital & Health Centre, Vancouver, BC, Canada. 3Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada. 4Community Based Testing and Biomedical Initiatives, First Nations Health Authority, Vancouver, BC, Canada. 5Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada. 6Public Health Laboratory, British Columbia Centre for Disease Control, Vancouver, BC, Canada. 7Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada

TP068
Cytomegalovirus Transmission in Mismatched Pediatric Solid Organ Transplant Recipients – What factors are at play?

Geraldine Huynh1, Curtis Mabilangan2, Maryna Yaskina3, Jutta Preiksaitis2, Catherine Burton2

1University of Toronto, Toronto, Canada. 2University of Alberta, Edmonton, AB, Canada. 3Women & Children’s Health Research Institute, Edmonton, AB, Canada

TP069
Increasing frequency of intracranial complications of sinusitis in children: A single centre retrospective study before and after emergence of SARS-CoV-2

Charis M Huddle1, Emily Aleksa1,2, Breanna A Chen1,3, Nadim Khalil3, Jacob Davidson4, Claire A Parent4, Adrianna Ranger1,5, Leigh J Sowerby1,2, Michelle A Barton1,3, Julie E Strychowsky1,2

1Schulich School of Medicine & Dentistry, Western University, London, ON, Canada. 2Department of Otolaryngology-Head and Neck Surgery, London Health Sciences Centre, London, ON, Canada. 3Department of Pediatrics, London Health Sciences Centre, London, ON, Canada. 4Department of Pediatric Surgery, London Health Sciences Centre, London, ON, Canada. 5Department of Clinical Neurological Sciences (Neurosurgery), London Health Sciences Centre, London, ON, Canada

TP070
Exploring updates to contact tracing recommendations for potential measles exposure on an airplane

Sabrina Chung1, Gisele Belliveau-Gould1, Suruthi Senthilvel2, Megan Pople1, Fanie Lalonde1, Katie Graham3, Abraham Abood1, Nicole Pachal1, Mireille Plamondon1, Marina Salvadori1

1Public Health Agency of Canada, Ottawa, ON, Canada. 2Public Health Agency of Canada, Toronto, ON, Canada. 3Public Health Agency of Canada, Vancouver, BC, Canada

TP071
A rise in the frequency of carbapenemase-producing Enterobacterales following an initial decline post COVID-19

Ceylon V Simon1, Shaista Anwer1, Bryn Hazlett1, Melissa Kissoon1, Allison McGeer2, Tony Mazzulli2, Susan M Poutanen1,3

1University Health Network/Mount Sinai Hospital, Department of Microbiology, Toronto, ON, Canada. 2Mount Sinai Hospital, Toronto, ON, Canada. 3Department of Laboratory Medicine and Pathobiology & Medicine, University of Toronto, Toronto, ON, Canada

 TP072
Idexx Legiolert for the detection of Legionella pneumophila: benefits and limitations as a potential alternative to agar culture for public health testing of environmental waters

Hyojin Jeong1, Tracy Chan1, Angela Kong1, Daisy Yu1, Natalie Prystajecky1,2

1Public Health Laboratory, British Columbia Centre for Disease Control, Vancouver, BC, Canada. 2Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada

TP073
Evaluation of test positivity rate for rotavirus in one province from 2013 to 2023

Amina Barka1,2, Nicholas Brousseau3,4, Jean Longtin4,5, Jesse Papenburg6,7, Caroline Quach-Thanh1,2

1Université de Montréal, Montreal, QC, Canada. 2CR-CHU Sainte-Justine, Montreal, QC, Canada. 3Institut national de santé publique du Québec, Quebec, QC, Canada. 4Université Laval, Quebec, QC, Canada. 5CHU de Québec, Quebec, QC, Canada. 6McGill University Health Centre – Research Institute, Montreal, QC, Canada. 7McGill University, Montreal, QC, Canada

TP074
The effect of antimicrobial copper on pathogenic and environmental microorganisms in high-traffic non-clinical settings

Kelsey AM Cruz, Naowarat Cheeptham, Joanna Urban

Thompson Rivers University, Kamloops, BC, Canada

TP075
Could blood establishments help in evaluating whether HTLV-1/2 screening should be conducted in high-risk pregnant women?

Christian Renaud1,2,3, Yves Fougère2,3, Yves Grégoire1, Diane Fournier1, Antoine Lewin1,4

1Héma-Québec, Montréal, QC, Canada. 2Université de Montréal, Montréal, QC, Canada. 3CHU Sainte-Justine, Montréal, QC, Canada. 4Université de Sherbrooke, Sherbrooke, QC, Canada

TP076
Assessing the public health impact of the adjuvanted respiratory syncytial virus prefusion F (RSVPreF3) vaccine in Canadian older adults

Sydney George1, Michael Dolph2, Yufan Ho3, Daniel Molnar4, Dessi Loukov1, Emily Matthews2, Shreena Malaviya2, Janine Xu1, Victor Preckler4

1GSK, Mississauga, ON, Canada. 2Cytel Inc., Toronto, ON, Canada. 3GSK, Singapore, Singapore. 4GSK, Wavre, Belgium

TP077
Improving vaccine uptake: Immunization governance in Atlantic Canada

Rachel A Parker1, Noni E MacDonald2, Shawn HE Harmon2, Janice E Graham2, Jeannette L Comeau2

1Dalhousie University, Faculty of Medicine, Halifax, NS, Canada. 2Department of Pediatrics, Dalhousie University, Halifax, NS, Canada

TP078
Dried blood spot sampling for HIV, hepatitis C, and syphilis testing: Evaluating provincial implementation of an innovative testing modality

Janice Duddy1, Katherine A Twohig2, Sofia Bartlett2,3, Agatha Jassem2,3, Tamara Pidduck2, John Kim4, Paul Sandstrom5, Jason Wong2,3, Muhammad Morshed2,3, Mark Gilbert2,3

1Independent Evaluation Consultant, White Rock, BC, Canada. 2BC Centre for Disease Control, Vancouver, BC, Canada. 3University of British Columbia, Faculty of Medicine, Vancouver, BC, Canada. 4National Laboratory for HIV References Services, Public Health Agency of Canada, Winnipeg, MB, Canada. 5National Sexually Transmitted and Blood-Borne Infections Laboratories, Public Health Agency of Canada, Winnipeg, MB, Canada

TP079
The Community Pop-up Clinic (CPC): Cascade of Care and HCV Treatment in vulnerable population of people who use drugs (PWUD)

Shana Yi1, Saina Beitari1, Brian Conway1,2

1Vancouver Infectious Diseases Centre, Vancouver, Canada. 2Simon Fraser University, Vancouver, Canada

TP080
Impact of new sexual behaviour-based screening practice at Héma-Québec

Christian Renaud1,2, Yves Grégoire3, Marc Germain3, Antoine Lewin1,4

1Héma-Québec, Montréal, QC, Canada. 2Université de Montréal, Montréal, QC, Canada. 3Héma-Québec, Québec, QC, Canada. 4Université de Sherbrooke, Sherbrooke, QC, Canada

TP081
Respiratory Syncytial Virus: the use of the Moving Epidemic Method to guide the launch of palivizumab immunoprophylaxis campaigns in Québec

Coralie Raad1, Naim Ouldali2, Marc Lebel1, Jesse Papenburg3, Antoine Lewin4,5, Christian Renaud1,4,6

1CHU Sainte-Justine, Montréal, QC, Canada. 2CHU Sainte-Justine, Montréal, QC, Canada. 3McGill University Health Center, Montreal, QC, Canada. 4Héma-Québec, Montréal, QC, Canada. 5Université de Sherbrooke, Sherbrooke, QC, Canada. 6Université de Montréal, Montréal, QC, Canada

TP082
Molecular Screening Reveals Low Prevalence of Ixodes scapularis ticks in British Columbia: Implications for Tick Identification Methods

Isaac Singh1, Min-Kuang Lee1, Julia Wang1, Martin Cheung1, Navdeep Chahil1, Catherine Hogan1,2, Muhammad Morshed1,2

1BC Centre for Disease Control – Public Health Laboratory, Vancouver, BC, Canada. 2Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada

TP083
Motivation to opt-out of quality improvement project for universal third trimester screening of chlamydia and gonorrhea at a single hospital site in Alberta

Taylor M Walsh1,2, Sabrina S Plitt3, Carmen L Charlton1,2,4,5

1Deparment of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada. 2Women and Children’s Health Research Institute (WCHRI), University of Alberta, Edmonton, AB, Canada. 3School of Public Health, University of Alberta, Edmonton, AB, Canada. 4Alberta Precision Laboratories, Edmonton, AB, Canada. 5Li Ka Shing Institute of Virology, University of Alberta, Edmonton, AB, Canada

TP084
Characterization of Mycoplasma genitalium in Canada from 2022 to 2023

Nick Nordal-Budinsky1, Shelley W Peterson1, Giulia Severini1, Linda Hoang2, Brigitte Lefebvre3, Mathew Diggle4, Paul Van Caeseele5, Samir Patel6, Richard Garceau7, Xiaofeng Ding8, Yang Yu9, Irene Martin1

1National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada. 2British Columbia Centres for Disease Control Public Health Microbiology & Reference Laboratory, Vancouver, BC, Canada. 3Laboratoire de santé publique du Québec, Ste-Anne-de-Bellevue, QC, Canada. 4Provincial Laboratory of Public Health Alberta, Edmonton, AB, Canada. 5Cadham Provincial Laboratory, Winnipeg, MB, Canada. 6Public Health Ontario Laboratory, Toronto, ON, Canada. 7Dr. Georges L. Dumont University Hospital Centre, Moncton, NB, Canada. 8Queen Elizabeth Hospital, Charlottetown, PEI, Canada. 9Newfoundland Public Health Laboratory, St. John’s, NL, Canada

TP085
Mycoplasma genitalium infection in a cohort of adolescents and young women

Angela Copete1, Irene Martin2, David Alexander1,3, Shelley Peterson2, Lyle McKinnon1, Ruth Mwatelah1, Marissa Becker4, Sharmistha Mishra5, Mariana Herrera1, Yoav Keynan1, Zulma Rueda1

1Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB, Canada. 2Streptococcus and STI Unit, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada. 3Cadham Provincial Laboratory, Diagnostic Services, Shared Health, Manitoba, Canada, Winnipeg, MB, Canada. 4Department of Community Health Sciences, University of Manitoba, Winnipeg, MB, Canada. 5Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada

TP086
Ceftriaxone resistant Neisseria gonorrhoeae strains in Canada, 2017-2023

Robyn Thorington1, Norman Barairo1, Linda Hoang2, Jason Wong2, Brigitte Lefebvre3, Mathew Diggle4, Samir Patel5, Vanessa Tran5, Irene Martin1

1National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada. 2British Columbia Centres for Disease Control Public Health Microbiology & Reference Laboratory, Vancouver, BC, Canada. 3Laboratoire de santé publique du Québec, Ste-Anne-de-Bellevue, QC, Canada. 4Provincial Laboratory of Public Health Alberta, Edmonton, AB, Canada. 5Public Health Ontario Laboratory, Toronto, ON, Canada

TP087
Evaluating the Performance of Dried Blood Spot Samples for Sexually Transmitted Blood Borne Infection Testing

Jennifer Kopetzky1, Yun Li1, Tamara Pidduck1, Sofia Bartlett1,2, Frankie Tsang1, Mel Krajden1, Muhammad Morshed1,2, Inna Sekirov1,2, Agatha Jassem1,2

1British Columbia Centre for Disease Control, Public Health Laboratory, Vancouver, BC, Canada. 2University of British Columbia, Department of Pathology and Laboratory Medicine, Vancouver, BC, Canada

TP088
Multiple Syphilis Infections episodes in British Columbia: Molecular Analysis using Enhanced CDC-rpsA Typing and Point Mutation Detection

Pink Yi Lui1, Min-Kuang Lee1, Alisa Li1, Julia Wang1, Wu He1, Adrienne Wang1, Navdeep Chahil1, Muhammad Morshed1,2

1BC Centre for Disease Control – Public Health Laboratory, Vancouver, BC, Canada. 2Department of Pathology and Laboratory Medicine, Vancouver, BC, Canada

TP089
Genomic Characterization of Circulating Treponema pallidum Strains in British Columbia, 2023

Min-Kuang Lee1, Julia Wang1, Pink Yi Lui1, Isaac Singh1, Wu He1, Adrienne Wong1, Navdeep Chahil1, Muhammad Morshed1,2

1BC Centre for Disease Control – Public Health Laboratory, Vancouver, BC, Canada. 2Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada

TP090
Investigation of the newly emerging 14d/d Treponema pallidum strain in British Columbia using multilocus sequence typing

Julia Wang1, Min-Kuang Lee1, Isaac Singh1, Pink Yi Lui1, Alisa Li1, Navdeep Chahil1, William Hsiao2, Muhammad Morshed1,3

1BC Centre for Disease Control – Public Health Laboratory, Vancouver, BC, Canada. 2Faculty of Health Sciences, Simon Fraser University, Vancouver, BC, Canada. 3Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada

TP091
Evaluation of the updated cobas® SARS-CoV-2 & Influenza A/B Qualitative nucleic acid test (v2) for the detection of influenza A H1N1 containing matrix mutation C124A

Nancy Matic1,2, Gordon Ritchie1,2, Tanya Lawson1, Matthew Young1, Frankie Tsang3, John Tyson2,3, Agatha Jassem2,3, Marc G. Romney1,2, Christopher F Lowe1,2

1St. Paul’s Hospital, Vancouver, BC, Canada. 2University of British Columbia, Vancouver, BC, Canada. 3BC Centre for Disease Control, Vancouver, BC, Canada

TP092
Targeting Hepatitis B Virus by pretending to be Hepatitis Delta Virus

Justine M Beghin, Maulik Badmalia, Vanessa Meier-Stephenson

University of Alberta, Edmonton, AB, Canada

TP093
Detecting proliferation of rubella-specific memory T-cells in the prenatal population

Tamara A Semeria Maitret1, Sabrina S Plitt2, Troy Baldwin3, Carmen L Charlton1,4,5

1Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada. 2School of Public Health, University of Alberta, Edmonton, AB, Canada. 3Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB, Canada. 4Provincial Laboratory for Public Health (ProvLab), Edmonton, AB, Canada. 5Canadian Blood Services (CBS), Edmonton, AB, Canada

TP094
Clinical Significance of Human Herpesvirus 6 detected with the FilmArray Meningitis/Encephalitis Panel in Nova Scotia

Yahya Shabi, Elizabeth Simms, Glenn Patriquin, Jason Leblanc, Mark Robbins, Ian Davis, Todd F Hatchette

Dalhousie University, Halifax, Nova Scotia, Canada

TP095
Characterization of live attenuated and UV-inactivated VSV-based influenza universal vaccine targeting the highly conserved M2 ectodomain from different host strains

Titus Abiola Olukitibi1, Zhujun Ao1, Hiva Aziz2, Tosin Omole1, Lyle Mckinnon1, Kevin Coombs1, Darwyn Kobasa1,3, Gary Kobinger4, Xiaojian Yao1

1University of Manitoba, Winnipeg, MB, Canada. 2de l’Université Laval/Centre Hospitalier de l’Université Laval (CHUL), Quebec City, QC, Canada. 3National Microbiology Laboratory, Winnipeg, MB, Canada. 4Galveston National Laboratory, Galveston, Texas, USA

TP096
Identification of nsp5 mutations in SARS-CoV-2 isolates from patients after completion of nirmatrelvir-ritonavir therapy through whole-genome sequencing

Natalie Deschenes1, Zoe Zhong2, Nicholas Waglechner3, Angel L Xinliu2, Patryk Aftanas3, Samira Mubareka1,4, Lubna Farooqi2, Adnan Moinuddin2, Lina Siddiqi2, Imaan Malik2, Maxime Lefebvre2, Allison McGeer2,4, Robert Kozak1,3,4

1Biological Sciences Platform, Sunnybrook Research Institute, Toronto, ON, Canada. 2Sinai Health System, Mount Sinai Hospital, Toronto, ON, Canada. 3Shared Hospital Laboratory, Toronto, ON, Canada. 4Department of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada

TP097
Epidemiology of pediatric invasive pneumococcal disease (IPD) late after introduction of a routine infant PCV13 program

Altynay Shigayeva1, Aaron Campigotto2, Zoe Zhong1, Ian Kitai2, Alyssa Golden3, Irene Martin3, Larissa Matukas4, Krystyna Ostrowska5, Jeff Powis6, Daniel Ricciutto7, David Richardson8, Andrew Simor9, Tamara Vikulova1, Allison McGeer1

1Toronto Invasive Bacterial Diseases Network, Sinai Health System, Toronto, ON, Canada. 2Hospital for Sick Children, Toronto, ON, Canada. 3National Microbiology Laboratory, Winnipeg, MB, Canada. 4Unity Health, Toronto, ON, Canada. 5Trillium Health Partners, Mississauga, ON, Canada. 6Toronto East Health Network, Toronto, ON, Canada. 7Lakeridge Health, Oshawa, ON, Canada. 8William Osler Health System, Brampton, ON, Canada. 9Sunnybrook Health Sciences Centre, Toronto, ON, Canada