Lori R. Holtz, M.D., M.S.P.H.  loriholtz@wustl.edu

Profile picture
Associate Professor of Pediatrics, Gastroenterology, Hepatology and Nutrition
Gastroenterology, Hepatology and Nutrition

phone: (314) 454-6173


  • BS, Tulane University1999
  • MD, The Ohio State University College of Medicine2003
  • MSPH, St. Louis University School of Public Health2014


  • Residency, Vanderbilt Children's Hospital2003 - 2006
  • Fellowship, Washington University2006 - 2009

Licensure and Board Certification

  • 2006 - 2026American Board of Pediatrics
  • 2008 - PresMO
  • 2009 - 2023American Board of Pediatrics, Sub-board of Pediatric Gastroenterology

Honors and Awards

  • National Science Scholar1995
  • Tulane University Partial Academic Scholarship1995 - 1999
  • Funding from the National Science Foundation research experience for undergraduates1998
  • Cum Laude, Tulane University1999
  • NASPGHAN travel grant2008
  • Children's Discovery Institute Faculty Scholar2013 - 2018
  • St. Louis Best Doctors2015 - 2020
  • Washington University Institute for Public Health Scholar2016 - Pres
  • March of Dimes Basil O'Connor Award2017 - 2020
  • Doris Duke Clinical Scientist Development Award2017 - 2021

Selected Publications view all (34)

Publication Co-Authors

Growth velocity in children with Environmental Enteric Dysfunction is associated with specific bacterial and viral taxa of the gastrointestinal tract in Malawian children. PLoS Negl Trop Dis. 2020;14(6):e0008387. PMID:32574158 
Alphatorquevirus is the most prevalent virus identified in blood from a matched maternal-infant preterm cohort. J Matern Fetal Neonatal Med. 2020;1-7. PMID:32401076 
Discordant transmission of bacteria and viruses from mothers to babies at birth. Microbiome. 2019;7(1):156. PMID:31823811 
Amniotic fluid from healthy term pregnancies does not harbor a detectable microbial community. Microbiome. 2018;6(1):87. PMCID:PMC5946436  PMID:29751830 
Risk Factors Associated with Very Low Birth Weight in a Large Urban Area, Stratified by Adequacy of Prenatal Care. Matern Child Health J. 2016;20(3):623-9. PMID:26537389 
Early life dynamics of the human gut virome and bacterial microbiome in infants. Nat Med. 2015;21(10):1228-34. PMCID:PMC4710368  PMID:26366711 
Prevalence of classic, MLB-clade and VA-clade Astroviruses in Kenya and The Gambia. Virol J. 2015;12:78. PMCID:PMC4465002  PMID:25975198 
Geographic variation in the eukaryotic virome of human diarrhea. Virology. 2014;468-470:556-64. PMCID:PMC4254309  PMID:25262473 
Seroepidemiology of astrovirus MLB1. Clin Vaccine Immunol. 2014;21(6):908-11. PMCID:PMC4054231  PMID:24789796 
Discovery of rosavirus 2, a novel variant of a rodent-associated picornavirus, in children from The Gambia. Virology. 2014;454-455:25-33. PMCID:PMC4096378  PMID:24725928 
Comparison of novel MLB-clade, VA-clade and classic human astroviruses highlights constrained evolution of the classic human astrovirus nonstructural genes. Virology. 2013;436(1):8-14. PMCID:PMC3545029  PMID:23084422 
Human polyomaviruses in children undergoing transplantation, United States, 2008-2010. Emerg Infect Dis. 2012;18(10):1676-9. PMCID:PMC3471627  PMID:23017293 
© 2022 by Washington University in St. Louis
One Brookings Drive, St. Louis, MO 63130