Stephanie A. Fritz, M.D., M.S.C.I.

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Associate Professor of Pediatrics, Infectious Diseases
Infectious Diseases

phone: (314) 454-6050

Clinical Interests

Dr. Fritz's research interests are in the epidemiology, treatment, and prevention of pediatric methicillin-resistant Staphylococcus aureus infections.


  • BS, University of Wisconsin1997
  • MD, Medical College of Wisconsin2001
  • MSCI, Washington University School of Medicine2008


  • Intern/Resident in Pediatrics, Children's Hospital of Wisconsin2001 - 2004
  • Fellow, Pediatric Infectious Diseases, Washington University 2004 - 2007

Licensure and Board Certification

  • 2003 - PresWI, Physician and Surgeon
  • 2004 - PresMO, Physician and Surgeon
  • 2004 - 2024American Board of Pediatrics (ABP)
  • 2007 - 2017ABP Sub-board of Pediatric Infectious Diseases

Honors and Awards

  • Phi Eta Sigma Honor Society1994 - 1997
  • Elmbrook Memorial Hospital John O. Grade, M.D. Scholarship1997
  • University of Wisconsin-Madison: Graduated with Distinction1997
  • Watertown Memorial Hospital Cynthia Kolasinski Scholarship1999 - 2000
  • Wisconsin State Medical Society Foundation Scholarship2000
  • Scholar, Mentored Training Program in Clinical Investigation, Washington University School of Medicine, St. Louis, MO2005 - 2008
  • National Institutes of Health Loan Repayment Program Award2006 - 2009
  • Infectious Diseases Society of America/ National Foundation for Infectious Diseases Pfizer Fellowship in Clinical Diseases Award2007
  • Faculty Scholar Award, Children’s Discovery Institute of Washington University and St. Louis Children’s Hospital2012
  • Young Investigator Award, Pediatric Infectious Diseases Society2012
  • Featured Member, Society for Pediatric Research2014
  • Resident/Fellow Alumni Achievement Award, Washington University Medical Center Alumni Association2018
  • Mentor of the Year, Clinical Research Training Center, Washington University Institute of Clinical and Translational Sciences2021
  • Inducted into Alpha Omega Alpha2022

Recent Publications view all (64)

  1. Assessing COVID-19 testing strategies in K-12 schools in underserved populations: study protocol for a cluster-randomized trial. BMC Public Health. 2022;22(1):1177. PMCID:PMC9189793  PMID:35698094 
  2. Prevalence and Characterization of the Cefazolin Inoculum Effect in North American Methicillin-Susceptible Staphylococcus aureus Isolates. J Clin Microbiol. 2022;e0249521. PMID:35578988 
  3. Longitudinal Dynamics of Skin Bacterial Communities in the Context of Staphylococcus aureus Decolonization. Microbiol Spectr. 2022;10(2):e0267221. PMCID:PMC9045213  PMID:35384711 
  4. Perceptions of Telemedicine and Costs Incurred by a Visit to a General Infectious Diseases Clinic: A Survey. Open Forum Infect Dis. 2022;9(3):ofab661. PMCID:PMC8852313  PMID:35187192 
  5. Short- vs Standard-Course Outpatient Antibiotic Therapy for Community-Acquired Pneumonia in Children: The SCOUT-CAP Randomized Clinical Trial. JAMA Pediatr. 2022;176(3):253-261. PMCID:PMC8767493  PMID:35040920 
  6. Acceptance of Saliva-Based Specimen Collection for SARS-CoV-2 Testing Among K-12 Students, Teachers, and Staff. Public Health Rep. 2022;333549221074395. PMID:35137643 
  7. Skin and Soft Tissue Infection Treatment and Prevention Practices by Pediatric Emergency Pediatric Emergency Care. 2022. doi:10.1097/PEC.0000000000002618  
  8. HOME2 Study: Household Versus Personalized Decolonization in Households of Children With Methicillin-Resistant Staphylococcus aureus Skin and Soft Tissue Infection-A Randomized Clinical Trial. Clin Infect Dis. 2021;73(11):e4568-e4577. PMCID:PMC8653631  PMID:32521007 
  9. Contemporary Clinical Isolates of Staphylococcus aureus from Pediatric Osteomyelitis Patients Display Unique Characteristics in a Mouse Model of Hematogenous Osteomyelitis. Infect Immun. 2021;89(10):e0018021. PMCID:PMC8445171  PMID:34097469 
  10. SARS-CoV-2 screening testing in schools for children with intellectual and developmental disabilities. J Neurodev Disord. 2021;13(1):31. PMCID:PMC8407928  PMID:34465306 
  11. Factors associated with progression to infection in methicillin-resistant Staphylococcus aureus-colonized, critically ill neonates. J Perinatol. 2021;41(6):1285-1292. PMCID:PMC7917959  PMID:33649431 
  12. Pediatric research priorities in healthcare-associated infections and antimicrobial stewardship. Infect Control Hosp Epidemiol. 2021;42(5):519-522. PMID:33239122 
  13. Pilot Investigation of SARS-CoV-2 Secondary Transmission in Kindergarten Through Grade 12 Schools Implementing Mitigation Strategies - St. Louis County and City of Springfield, Missouri, December 2020. MMWR Morb Mortal Wkly Rep. 2021;70(12):449-455. PMCID:PMC7993558  PMID:33764961 
  14. Skin and Soft Tissue Infection Treatment and Prevention Practices by Pediatric Infectious Diseases Providers Journal of the Pediatric Infectious Diseases Society. 2020;9(6):760–765. doi:10.1093/jpids/piz080  PMCID:PMC7864142  PMID:31773168 
  15. Incidence and treatment of hemophagocytic lymphohistiocytosis in hospitalized children with Ehrlichia infection. Pediatr Blood Cancer. 2020;67(10):e28436. PMID:32706439 
  16. The cefazolin inoculum effect and methicillin-susceptible Staphylococcus aureus osteoarticular infections in children: Does it matter? Antimicrob Agents Chemother . 2020;64(9):e00703-20. doi:10.1128/AAC.00703-20  PMCID:PMC7449214  PMID:32660989 
  17. Antibiotic Duration, but Not Abscess Size, Impacts Clinical Cure of Limited Skin and Soft Tissue Infection After Incision and Drainage. Clin Infect Dis. 2020;71(3):661-663. PMCID:PMC7384315  PMID:31738397 
  18. National Trends in Incidence of Purulent Skin and Soft Tissue Infections in Patients Presenting to Ambulatory and Emergency Department Settings, 2000-2015. Clin Infect Dis. 2020;70(12):2715-2718. PMID:31605485 
  19. Potent, specific MEPicides for treatment of zoonotic staphylococci. PLoS Pathog. 2020;16(6):e1007806. PMCID:PMC7297381  PMID:32497104 
  20. Environmental Methicillin-resistant Staphylococcus aureus Contamination, Persistent Colonization, and Subsequent Skin and Soft Tissue Infection. JAMA Pediatr. 2020;174(6):552-562. PMCID:PMC7105954  PMID:32227144 
  21. Longitudinal, strain-specific Staphylococcus aureus introduction and transmission events in households of children with community-associated meticillin-resistant S aureus skin and soft tissue infection: a prospective cohort study. Lancet Infect Dis. 2020;20(2):188-198. PMCID:PMC6995751  PMID:31784369 
  22. Staphylococcus aureus antibiotic susceptibility patterns in pediatric atopic dermatitis. Pediatr Dermaol. 2019. 
  23. Interplay of personal, pet, and environmental colonization in households affected by community-associated methicillin-resistant Staphylococcus aureus. Journal of Infection. 2019;78(3):200-207. doi:10.1016/j.jinf.2018.11.006  PMCID: PMC6408279  PMID:30503843 
  24. Emergency department environmental contamination with methicillin-resistant Staphylococcus aureus following care of colonized patients Ann Emerg Med. 2019. doi:10.1016/j.annemergmed.2018.12.014  PMID:30732980 
  25. Carriage of the Toxic Shock Syndrome Toxin Gene by Contemporary Community-Associated Staphylococcus aureus Isolates. J Pediatric Infect Dis Soc.. 2018. doi:10.1093/jpids/piy098  PMID:30285124 
  26. Spatial relationships among public places frequented by families plagued by methicillin-resistant Staphylococcus aureus. BMC Res Notes. 2018;11(1):692. doi:10.1186/s13104-018-3797-4  PMCID:PMC6167789   PMID:30285824 
  27. Comparing the yield of Staphylococcus aureus recovery with static versus agitated broth incubation Journal of Pathogens. 2018;Article ID 1462671. doi:10.1155/2018/1462671  PMCID:PMC6083490  PMID:30147954 
  28. Comprehensive modeling reveals proximity, seasonality, and hygiene practices as key determinants of MRSA colonization in exposed households Pediatr Res. 2018. PMCID:PMC6294678   PMID:30135590 
  29. Methicillin-resistant Staphylococcus aureus: Its effects are more than skin deep J Pediatr. 2018;199:158-165. doi:10.1016/j.jpeds.2018.04.002  PMCID: PMC6063792  PMID:29759849 
  30. Impact of systemic antibiotics on Staphylococcus aureus colonization and recurrent skin infection Clin Infect Dis. 2017. doi:10.1093/cid/cix754  PMCID:PMC5850557  PMID:29020285 
  31. A placebo-controlled trial of antibiotics for smaller skin abscesses. New Engl J Med . 2017;376:2545-2555. PMID:28657870 
  32. Colonization with 19F and other pneumococcal conjugate vaccine serotypes in children in St. Louis, Missouri, USA. Vaccine. 2017;35(34):4389-4395. PMID:28687405 
  33. Topical Decolonization Does Not Eradicate the Skin Microbiota of Community-Dwelling or Hospitalized Adults. Antimicrob Agents Chemother. 2016;60(12):7303-7312. PMCID:PMC5119011  PMID:27671074 
  34. Diversity of Staphylococcus aureus strains colonizing various niches of the human body. J Infect 2016. 2016;72:698-705. PMID:27045982 
  35. Emergence of community-associated methicillin-resistant Staphylococcus aureus strains in the neonatal intensive care unit: an infection prevention and patient safety challenge. Clin Microbiol Infect . 2016;22:645.e1-645.e8. PMCID:PMC4987169  PMID:27126609 
  36. Antimicrobial Susceptibility Profiles of Staphylococcus aureus Isolates Recovered from Humans, Environmental Surfaces, and Companion Animals in Households of Children with Community-Onset Methicillin-Resistant S. aureus Infections. Antimicrob Agents Chemother. 2015;59(10):6634-7. doi:10.1128/AAC.01492-15  PMCID:PMC4576049  PMID:26248385 
  37. Discriminatory Indices of Typing Methods for Epidemiologic Analysis of Contemporary Staphylococcus aureus Strains. Medicine (Baltimore). 2015;94(37):e1534. doi:10.1097/MD.0000000000001534  PMCID:PMC4635816  PMID:26376402 
  38. Prevention of Recurrent Staphylococcal Skin Infections. Infect Dis Clin North Am. 2015;29(3):429-64. doi:10.1016/j.idc.2015.05.007  PMCID:PMC4552962  PMID:26311356 
  39. Vitamin D sufficiency and Staphylococcus aureus infection in children. Pediatr Infect Dis J. 2015;34(5):544-5. doi:10.1097/INF.0000000000000667  PMCID:PMC4400212  PMID:25860535 
  40. Evaluation of Environmental Sampling Methods for Detection of Staphylococcus aureus on Fomites. Ann Public Health Res. 2015;2(1). PMCID:PMC4399720  PMID:25893222 
  41. Phenotypic variation is almost entirely independent of the host-pathogen relationship in clinical isolates of S. aureus. PLoS ONE. 2015;10(6):e0129670. 
  42. Contamination of environmental surfaces with Staphylococcus aureus in households with children infected with methicillin-resistant S aureus. JAMA Pediatr. 2014;168(11):1030-8. doi:10.1001/jamapediatrics.2014.1218  PMCID:PMC4219733  PMID:25200331 
  43. Molecular Epidemiology of Recurrent Cutaneous Methicillin-Resistant Staphylococcus aureus Infections in Children. J Pediatric Infect Dis Soc. 2014;3(3):261-264. doi:10.1093/jpids/pit046  PMCID:PMC4381745  PMID:25844165 
  44. Fecal carriage of methicillin-resistant Staphylococcus aureus and vancomycin-resistant Enterococcus in healthy children. Antimicrob Agents Chemother. 2014;58(2):1261-2. doi:10.1128/AAC.02466-13  PMCID:PMC3910844  PMID:24277049 
  45. Molecular epidemiology of Staphylococcus aureus in households of children with community-associated S aureus skin and soft tissue infections. J Pediatr. 2014;164(1):105-11. doi:10.1016/j.jpeds.2013.08.072  PMCID:PMC3921902  PMID:24128648 
  46. Molecular epidemiology of methicillin-resistant Staphylococcus aureus isolated in serial cultures from the respiratory tract of children with cystic fibrosis. Pediatr Infect Dis J. 2013. doi:10.1097/INF.0000000000000204  PMID:24220228 
  47. A serologic correlate of protective immunity against community-onset Staphylococcus aureus infection. Clin Infect Dis. 2013;56(11):1554-61. doi:10.1093/cid/cit123  PMCID:PMC3641868  PMID:23446627 
  48. Measurement and Impact of Staphylococcus aureus Colonization Pressure in Households. J Pediatric Infect Dis Soc. 2013;2(2):147-154. doi:10.1093/jpids/pit002  PMCID:PMC3665327  PMID:23717786 
  49. Mupirocin and chlorhexidine resistance in Staphylococcus aureus in patients with community-onset skin and soft tissue infections. Antimicrob Agents Chemother. 2013;57(1):559-68. doi:10.1128/AAC.01633-12  PMCID:PMC3535967  PMID:23147738 
  50. Presence of the bla(Z) beta-lactamase gene in isolates of Staphylococcus aureus that appear penicillin susceptible by conventional phenotypic methods. Diagn Microbiol Infect Dis. 2012;74(4):388-93. doi:10.1016/j.diagmicrobio.2012.07.013  PMID:22959917 
  51. Practices and procedures to prevent the transmission of skin and soft tissue infections in high school athletes. J Sch Nurs. 2012;28(5):389-96. doi:10.1177/1059840512442899  PMID:22472636 
  52. Staphylococcus aureus colonization in children with community-associated Staphylococcus aureus skin infections and their household contacts. Arch Pediatr Adolesc Med. 2012;166(6):551-7. doi:10.1001/archpediatrics.2011.900  PMCID:PMC3596005  PMID:22665030 
  53. Household versus individual approaches to eradication of community-associated Staphylococcus aureus in children: a randomized trial. Clin Infect Dis. 2012;54(6):743-51. doi:10.1093/cid/cir919  PMCID:PMC3284213  PMID:22198793 
  54. Reply to Herigon and Newland: the role of intention-to-treat analyses in randomized trials Infect Control Hosp Epidemiol . 2012;33(208):210. 
  55. Effectiveness of measures to eradicate Staphylococcus aureus carriage in patients with community-associated skin and soft-tissue infections: a randomized trial. Infect Control Hosp Epidemiol. 2011;32(9):872-80. doi:10.1086/661285  PMCID:PMC3528015  PMID:21828967 
  56. The natural history of contemporary Staphylococcus aureus nasal colonization in community children. Pediatr Infect Dis J. 2011;30(4):349-51. doi:10.1097/INF.0b013e3181fe075e  PMCID:PMC3077955  PMID:21412205 
  57. Skin infection in children colonized with community-associated methicillin-resistant Staphylococcus aureus. J Infect. 2009;59(6):394-401. doi:10.1016/j.jinf.2009.09.001  PMCID:PMC2788074  PMID:19747505 
  58. contribution of genetically restricted, methicillin-susceptible strains to the ongoing epidemic of community-acquired Staphylococcus aureus infections. Clin Infect Dis. 2009;49(4):536-42. doi:10.1086/600881  PMCID:PMC2965061  PMID:19589082 
  59. Group B Streptococcus vertebral osteomyelitis-discitis in an immunocompetent adolescent. Pediatr Infect Dis J. 2009;28(6):552-3. doi:10.1097/INF.0b013e3181a4ce6e  PMID:19483527 
  60. Virulence gene expression in human community-acquired Staphylococcus aureus infection. J Infect Dis. 2009;199(3):294-301. doi:10.1086/595982  PMCID:PMC2843142  PMID:19115951 
  61. Prevalence of and risk factors for community-acquired methicillin-resistant and methicillin-sensitive staphylococcus aureus colonization in children seen in a practice-based research network. Pediatrics. 2008;121(6):1090-8. doi:10.1542/peds.2007-2104  PMID:18519477 
  62. Antibiotic resistance patterns in children hospitalized for urinary tract infections. Arch Pediatr Adolesc Med. 2005;159(10):924-8. doi:10.1001/archpedi.159.10.924  PMID:16203936 
  63. Gradenigo syndrome: a rare but serious complication of otitis media. Pediatr Emerg Care. 2005;21(6):384-6. PMID:15942518 
  64. Filling the cavities between children and oral health. WMJ. 2004;103(5):74-8, 83. PMID:15553570 
Last updated: 07/26/2022
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