Laurel J. Glaser, MD, PhD, D(ABMM)
Associate Professor of Clinical Pathology and Laboratory Medicine
Perelman School of Medicine at the University of Pennsylvania
Director, Clinical Microbiology Laboratory
Co-Director, HUP/CHOP Fellowship in Clinical Microbiology
Associate Program Director for Clinical Pathology, HUP Pathology Residency Program
Contact InformationHospital of the University of Pennsylvania
4 Gates Building
3400 Spruce Street
Philadelphia, PA 19104
Tel: 215-662-3457
Email: laurel.glaser@pennmedicine.upenn.edu
Specialty Division
Laboratory Medicine
Education
ScB (Biochemistry), Brown University, 1998
MD PhD (Microbiology), Mount Sinai School of Medicine , 2009
Specialty Certification
American Board of Pathology (Anatomic and Clinical Pathology), 2014
American Board of Medical Microbiology, 2016
Certificate Program in Healthcare Quality Improvement and Patient Safety, Perelman School of Medicine, 2020
Postgraduate Training
Anatomic and Clinical Pathology Resident, Hospital of the University of Pennsylvania, University of Pennsylvania, 2009-2013
Fellow, Medical & Public Health Microbiology, CPEP (American Academy of Microbiology) Accredited Program, University of Pennsylvania, 2013-2015
Awards and Honors
Alpha Omega Alpha Honor Medical Society, 2008
William Pepper Fellowship Award in Recognition of Service to Clinical Pathology, 2011-2012
Kevin Salhany Award for Excellence in Clinical Teaching, 2017
Chairman's Award for Distinguished Citizenship and Extraordinary Service to the Department of Pathology and Laboratory Medicine at Penn Medicine, 2021
Kevin Salhany Award for Excellence in Clinical Teaching, 2022
Penn Cares Commitment to Excellence Award, 2022
Faculty of the Year Pennsylvania Hospital School of Medical Laboratory Science, 2023
Alfred Stengel Health System Champion Award, Perelman School of Medicine, University of Pennsylvania, 2024
Memberships and Professional Organizations
College of American Pathologists, 2009-present
American Society for Microbiology, 2013-present
American Society for Clinical Pathology, 2015-present
Web Links
Selected Publications
Risk Factors for Community Colonization With Extended-Spectrum Cephalosporin-Resistant Enterobacterales Among People Living With HIV in Botswana.
Loabile B, Lautenbach E, Mannathoko N, Mosepele M, Styczynski A, Smith RM, Cressman L, Jaskowiak-Barr A, Bilker WB, Alby K, Glaser L, Richard-Greenblatt M, Cowden L, Sewawa K, Otukile D, Paganotti GM, Mokomane M, Gross R., Open Forum Infect Dis. 13(2): , 2026
Leveraging patient data to detect systematic shifts in daptomycin susceptibility testing associated with reduced prescribing.
Zaydman MA, Glaser L, Herman DS, Kressloff M, Azimi V, Lockowitz CR, Dumm RE., J Clin Microbiol., 2026
Antigenic Characterization of H1N1 Influenza Viruses That Circulated During the 2019-2020 Season in Philadelphia, Pennsylvania. Influenza
Mendoza LM, Anderson EM, Leonard AS, McFarland AG, Ort JT, Tanenbaum N, Durosinmi A, Bushman FD, Glaser LJ, Nachamkin I, Hensley SE, Influenza Other Respir Viruses, 2025
Comparative performance of sponge versus flocked swabs for culture-based and metagenomic detection of microbial contamination in the healthcare environment
Ziegler MJ, Loughrey S, Bekele S, Huang E, Tolomeo P, David MZ, Lautenbach E, Glaser LJ, Kelly BJ., Infect Control Hosp Epidemiol, 2025
Risk factors for household colonization by extended-spectrum cephalosporin-resistant enterobacterales (ESCrE) in Botswana. Antimicrob Resist Infect Control
Shivji S, Mannathoko N, Mosepele M, Gross R, Cressman L, Jaskowiak-Barr A, Bilker WB, Alby K, Glaser L, Richard-Greenblatt M, Cowden L, Patel A, Sewawa K, Otukile D, Paganotti GM, Mokomane M, Snitkin E, Lautenbach E., Antimicrob Resist Infect Control, 2025
Screening and targeted prophylaxis for Clostridioides difficile infection.
Ziegler MJ, Anesi J, Tolomeo P, Glaser L, Cowden L, Cressman L, Huang E, Patel A, Lautenbach E, Pegues DA, Kelly BJ., Clin Microbiol Infect. 31(11): , 2025
Delayed diagnosis of disseminated Mycobacterium intracellulare subsp. chimaera infective endocarditis via cell-free metagenomic next-generation sequencing: a case report.
Ladines-Lim JB, Yang WT, Tebas P, O'Donnell J, Koenig H, Kreider E, Dyer K, Anwar M, Rodriguez E, Patel S, Rodino K, Glaser L, Richterman A, ASM Case Rep. 1(5): , 2025
Evaluating Inducible Macrolide Resistance in M. chelonae Clinical Isolates
Alexander, SA, Boulanger, EF, McAulay, K, Cowden, L, Glaser, LJ and Rodino, RG, Microbe, Los Angelas, CA, 2024
Mixed-methods multicenter assessment of healthcare workers' knowledge, perceptions, and practices related to blood culture utilization in hospitalized adults.
Fabre V, Cosgrove SE, Milstone AM, Salinas AB, Degnan KO, Gettler EB, Glaser LJ, Johnson JK, Moehring RW, Nelson GE, Rittmann B, Rodriguez-Nava G, Ryder JH, Salinas JL, Schrank GM, Talbot TT, Van Schooneveld TC, Wasylyshyn A, Xie A, Infect Control Hosp Epidemiol., 2024
Evaluation of a Novel Sample Preparation Workflow for Rapid Identification and Susceptibility Testing of Gram-Negative Bacilli Directly from Blood Cultures
Comar CE, Dumm, RE, Hendricks KI, Glaser, LJ and Rodino, KR., Microbe, Houston Texas, 2023
