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Elizabeth 'Beth' Marlowe, BS, MS, PhD, D (ABMM)

Elizabeth 'Beth' Marlowe, BS, MS, PhD, D (ABMM)

Executive Scientific Director, Infectious Diseases


Dr Beth Marlowe is the Executive Scientific Director and heads R&D for Quest Diagnostics Infectious Diseases and Immunology. Dr Marlowe joined Quest in June of 2019.  Beginning January of 2020, her team played a key role in the COVID-19 response and in 2022 the Mpox response.

Previously she worked as the global director of medical affairs for microbiology at Roche Molecular Systems, provided laboratory leadership for over a decade within the Kaiser Permanente Regional Laboratories and worked on assay development for Gen-Probe (now Hologic).

She is a diplomat of the American Board of Medical Microbiology, past-president for the So Cal branch of the American Society for Microbiology (ASM), served as an editor for the Clinical Microbiology Newsletter as well as the Journal of Clinical Virology. She has served as an elected member to the Council on Microbial Sciences for ASM, an appointed member of CLIAC, the federal advisory committee for CLIA to the United Stated Health and Human Services Secretary and an elected member of the Board of Directors for ASM. Her research areas of interest are focused on the translation of new infectious disease diagnostics for use in evidence-based research for clinical and public health microbiology practice.


Infectious Diseases

Board Certifications

American Board of Medical Microbiology (ABMM); Specialist in Microbiology, American Society of Clinical Pathology (SM(ASCP)); Clinical Microbiology Scientist, State of California; Department of Health Services, NY COQ, New York Department of Public Health


BS, Molecular and Cellular Biology, MS, Environmental Microbiology, PhD Environmental Microbiology, University of Arizona


San Juan Capistrano, CA


Post Doctoral Fellowship, Clinical and Public Health Microbiology, UCLA