Stephanie (Lutter) Fritz, MD, M.S.C.I., Principal Investigator
Stephanie grew up in southeastern Wisconsin and earned a degree in bacteriology from the University of Wisconsin. She then attended the Medical College of Wisconsin for her medical school training and completed her pediatric residency at Children’s Hospital of Wisconsin. She came to Washington University for a fellowship in pediatric infectious diseases. She completed her research training under the mentorship of Drs. Gregory Storch and Victoria Fraser and earned a Master of Science in Clinical Investigation from Washington University. For her outstanding research, she received the Pediatric Infectious Diseases Society Young Investigator Award and the Faculty Scholar Award from the Children’s Discovery Institute of Washington University and St. Louis Children’s Hospital. Her outside interests include Wisconsin Badgers football, St. Louis Cardinals baseball, outdoor activities, and volunteering with Dirk’s Fund Golden Retriever Rescue.

Patrick Hogan, Clinical Research Specialist
Patrick graduated from the University of North Carolina at Chapel Hill with a B.A. in Medical Anthropology in 2006. After a short stint as a lab technician at LabCorp, he attended the Saint Louis University School of Public Health and earned his MPH in Epidemiology and Environmental and Occupational Health in 2009. While obtaining his MPH, Patrick did childhood obesity research at Transtria. He loves playing soccer (Tottenham!) and enjoys watching the St. Louis Blues.

Mary Boyle, Research Nurse Coordinator
Mary attended Saint Louis University where she graduated from the School of Nursing with a BSN and an MSN in the Nursing of Children. She is a Certified Clinical Research Coordinator (CCRC). She has worked as a research coordinator at Washington University for over 20 years. She has 3 children and likes to run, swim, practice yoga and hike at National Parks.

Melanie Sullivan, Research Lab Supervisor
Melanie grew up in Springfield, IL and attended the University of Illinois Urbana-Champaign, graduating with a B.S. in Microbiology. Before joining the Fritz Lab, Melanie worked as a Medical Technologist at St. Mary’s Health Center and then the SSM Consolidated Microbiology Lab and continues to work there PRN. When not in the lab Melanie chauffeurs her 4 kids around to their various activities, coaches her youngest daughter’s CYC soccer team and chairs the landscape committee at Edgar Road Elementary in Webster Groves.

Carol Muenks, Clinical Research Coordinator
Carol attended Saint Louis University where she graduated with a B.A. in Anthropology and a minor in Biology in 2014. She is currently earning a Master’s of Science in Clinical Research Management through Washington University. She is especially interested in medical anthropology which explores the social, cultural, and biological processes that factor into human health and wellbeing. When not in the lab, Carol enjoys spending time with her husband, family and friends, and gardening.

Ryley Thompson, Clinical Research Study Assistant
Ryley grew up in Saskatchewan, Canada. As a summer student (decades ago), Ryley was involved in a federal Crown program providing Internet access to farming communities, this lead to a 15 year career in Information Technology. Ryley enjoys bringing his unique skills to the Fritz team. He enjoys running/biking with his wife, craft beer, bourbon, donuts, and Saint Louis history.

Lisa Berry, Research Technician
Lisa graduated from Greenville College with a Bachelor of Arts in Biology. She continued her studies at Jewish Hospital College of Nursing and Allied Health and received a certificate in Clinical Laboratory Science. In addition to working in the Fritz Lab, she has worked in the Clinical Bacteriology Lab at St. Louis Children's Hospital for 20 years. She truly enjoys working along side with the Infectious Disease physician's. When not in the lab, she spends lots of quality time with her son Caleb and MissyAnn her adorable cat, gardening, and spending time with friends and family.

Katie Parrish, Clinical Research Study Assistant
Katie graduated from Webster University in 2015 with a B.S. in Biological Sciences with an emphasis in Health and Medicine. She then attended Saint Louis University College of Public Health and Social Justice where she received her MPH in Epidemiology and Environmental Health and became Certified in Public Health. Before joining Fritz lab as an intern for her MPH program, she worked for Washington University School of Medicine in the Department of Neurology where she investigated the role of gender and stress in the development of Alzheimer’s Disease in mice. In her free time, she enjoys reading, spending time with friends, practicing yoga, and hanging out with her adorable nieces and nephew.

Tyler Walsh, Clinical Research Aide

Tyler grew up in Alexandria, KY and graduated from Kentucky Wesleyan College with a B.S in Biology in 2017. He is currently pursuing a Masters degree in Public Health at Saint Louis University with a concentration in Biosecurity, Disaster Preparedness, and Epidemiology. In his free time Tyler enjoys exploring St. Louis and being active. He particularly enjoys the Fall when he's able to watch Ohio State football.

Sabrina Flohr, Clinical Research Aide
Sabrina graduated from Southeast Missouri State University with a B.S. in Microbiology and a minor in Chemistry. She is currently pursuing a Master's of Public Health degree with a concentration in Epidemiology at Saint Louis University College for Public Health and Social Justice. When not in the lab, Sabrina enjoys reading, watching Cardinal's baseball games, and playing with as many dogs as possible.


Sara Halili, Clinical Research Aide
Sara—a native of Elbasan, Albania—recently graduated from Thomas Jefferson School as a Charles E. Merrill Jr. Scholar, and is now pursuing a B.A. in Biochemistry in the pre-health track at Smith College in Northampton, Massachusetts. Sara is interested in public health and infectious diseases, and plans to pursue a career in academic medicine. When not studying or running experiments in the lab, she enjoys cooking, reading, keeping in touch with her huge family back home, and volunteering at the local hospital. Sara is thrilled to work in the Fritz lab for the summer.

Amy Jasani, Clinical Research Aide
Amy is currently pursuing a B.A. in Neuroscience and a Fast-Track Master of Public Health with a concentration in Health Behavior at the University of Alabama at Birmingham. Before joining the Fritz lab as an IPH Public & Global Health Track scholar, Amy has participated in multiple public and global health conferences, worked on research for a potential topical treatment for skin cancer, and volunteered to advance different public health causes. In her free time, Amy enjoys working out, exploring new places, and spending time with family and friends.

Hannah Wiseman, Clinical Research Aide
Hannah currently attends Rockhurst University in Kansas City, Missouri. She is working on a double-major in Biology and French with a minor in Art. Hannah plans on attending medical school and becoming a pediatrician, and has joined the Fritz lab as part of Washington University’s Pediatric Student Research Program. She is especially interested in conducting research on asthma and allergy treatment. When not doing schoolwork, Hannah volunteers at the Kemper art museum in Kansas City and with her sorority Gamma Phi Beta. She enjoys painting, exercising with friends, ice cream, watching Survivor, and cheering on the Cardinals and Blues from Kansas City.

Daire Jansson, Clinical Research Aide
Daire grew up in Orlando, Florida. She received a B.A. in History in 2016 from Rollins College, where she studied the ways in which conflict affects culture. She received her MPH in Biosecurity and Disaster Preparedness and Epidemiology from Saint Louis University and became Certified in Public Health in 2019. In her time at SLU, she collaborated with faculty on environmental epidemiology research concerned with adverse health outcomes of air pollution in China. She is an avid Boston sports fan and enjoys spending time outdoors with her dog, Avery.

Meghan Wallace, Research Technician
Meghan attended Saint Louis University where she graduated with a B.S in Clinical Laboratory Science and a certificate in Forensic Science. She is a medical technologist in the Washington University in STL research lab of Dr. Carey-Burnham. When not working in the lab, Meghan coaches cross country and track and field for the St. Louis College of Pharmacy. In her free time she enjoys running marathons and rock climbing.


Carey-Ann Burnham, Ph.D., D(ABMM), F(CCM)
Professor of Pathology & Immunology, Molecular Microbiology, Pediatrics, and Medicine;
Director, Medical and Public Health Microbiology Fellowship Program;
Washington University in St. Louis
Medical Director of Clinical Microbiology, Barnes Jewish Hospital
Carey-Ann grew up in Alberta, Canada. She received a Ph.D. in Microbiology from the University of Alberta in 2007 and graduated from the Medical and Public Health Microbiology Fellowship at Washington University School of Medicine in 2009. Carey-Ann is currently a Professor of Pathology & Immunology, Molecular Microbiology, Pediatrics, and Medicine at Washington University. She is also Medical Director of Clinical Microbiology at Barnes Jewish Hospital and Director of the Medical and Public Health Microbiology Fellowship program. Her research interests include transmission and epidemiology of Staphylococcus aureus and Clostridium difficile, MALDI-TOF MS methods for Clinical Microbiology, and antimicrobial resistance . When Carey-Ann isn’t in the lab she enjoys running and biking.

Marcela Rodriguez, MD
Assistant Professor of Pediatrics, Southern Illinois University

Marcela grew up in Cali, Colombia. She attended medical school at the Universidad Libre in Cali and completed her pediatric residency at Southern Illinois University in Springfield, IL. She then pursued a fellowship in pediatric infectious diseases at Washington University during which time she obtained advanced training in clinical research and epidemiology. She is currently an Assistant Professor at Southern Illinois University in the Department of Pediatrics, Infectious Diseases and continues to collaborate with the Fritz Research lab. Her outside interests include camping and classic ballet.

David Hunstad, MD
Associate Professor of Pediatrics, Infectious Diseases, and Molecular Microbiology;
Division Chief, Division of Pediatric Infectious Diseases;
Washington University in St. Louis
David grew up in southern Minnesota and came to Washington University as a medical student in 1991. After completing medical school on a Distinguished Alumni Scholarship, he trained in pediatrics and was chief resident at St. Louis Children's Hospital. His research training in the laboratory of Dr. Scott Hultgren was supported by the Pediatric Scientist Development Program. His outside interests include running, reading, and the Cardinals. He lives with his wife, Jenni, and their two girls in west St. Louis County.

Patrick Reich, MD
Instructor of Pediatrics, Washington University in St. Louis

Patrick grew up in St. Louis and attended St. Louis University for undergrad and medical school. He completed his pediatric residency and Pediatric Infectious Diseases Fellowship at Washington University/St. Louis Children’s Hospital. His research interests include understanding the reservoirs for colonization with MRSA and other antibiotic-resistant bacteria in the NICU. In his free time he enjoys running, hiking, and playing tennis.

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