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Melanie L Yarbrough, PhD

Instructor, Pathology & Immunology



Additional Titles

  • Assistant Medical Director of Microbiology, Barnes Jewish Hospital

Related Links


  • BS Veterinary Biomedical and Clinical Sciences: Texas A&M University, College Station, TX (2004)
  • PhD Microbiology: University of Texas Southwestern Medical Center, Dallas, TX (2009)
  • Fellowship, Clinical Chemistry: Washington University, St. Louis, MO (2013)
  • Fellowship, Clincal Microbiology: Washington University, St. Louis, MO (2015)

Board Certifications

  • Diplomate, American Board of Clinical Chemistry, 2013 Diplomate, American Board of Medical Microbiology, 2015


  • Washington University Laboratory and Genomic Medicine Fellow Teacher of the Year
  • American Association for Clinical Chemistry (AACC) Outstanding Speaker Award

Clinical Interests

  • Microbiology Bacteriology Urinary tract infection
  • Sexually transmitted infection Antimicrobial Resistance

Research Interests

My research focuses on the evaluation of methods for isolation and identification of urinary pathogens, including multi-drug resistant organisms. Additional studies aim to characterize the urinary microbiome to explore links between characteristic microbial communities and the presence of sexually transmitted infections (STI) and UTI. Together, these studies will provide opportunities for improvement of both diagnostic and antimicrobial stewardship of genitourinary diseases that have a major impact on public health.


PubMed Search

Yarbrough ML, Kwon JH, Wallace MA, Hink T, Shupe A, Fraser VJ, Dubberke ER, Burnham C-AD for the CDC Prevention Epicenter Program. Frequency of instrument, environment, and laboratory technologist contamination during routine diagnostic testing of infectious specimens. J Clin Microbiol. 2018 56(6) (PMID 29679555)
Yarbrough ML, Briden KE, Mitsios JV, Weindel AL, Terrill CM, Hunstad DA, and Dietzen DJ. Mass spectrometric measurement of urinary kynurenine-to-tryptophan ratio in children with and without urinary tract infection. Clinical Biochemistry. 2018 56: 83-88 (PMID 29679555)
Yarbrough ML, Lainhart B, Burnham C-AD. Epidemiology, Clinical Characteristics, and Antimicrobial Susceptibility Profiles of Human Clinical Isolates of Staphylococcus intermedius Group. J Clin Microbiol. 2018 Jan 5. pii: JCM.01788-17. (PMID 29305548)
Yarbrough ML, Warren DK, Allen K, Burkholder D, Daum R, Donskey C, Knaack D, Lamarca A, May L, Miller LG, Parenti DM, Peterson L, Tan TY, Widen R, Hernandez DR, Wolk DM, Burnham CA-D. Multicenter evaluation of the Xpert MRSA NxG Assay for detection of methicillin resistant Staphylococcus aureus in nasal swabs. J Clin Microbiol. J Clin Microbiol. 2017 56(1). (PMID 29118165)
Yarbrough ML, Lainhart W, Burnham CA. Identification of Nocardia, Streptomyces, and Tsukamurella using MALDI-TOF MS with the Bruker Biotyper. Diagnositic Micobiology and Infectious Disease. 2017. (PMID 28811116)
Yarbrough ML, Wallace MA, Marshall C, Mathias E, Burnham CA. Culture of Urine Specimens Using chromID CPS Elite Medium Can Expedite Escherichia coli Identification and Reduce Hands-On Time in the Clinical Laboratory. J Clin Microbiol. 2016. 54(11): 2767-2773. (PMID 27582518)

Tammy Robison
Phone: 314-362-2998