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Nate C. Bahr, MD, MA

Professional Background

Dr. Bahr grew up in Caledonia, Minnesota and received his undergraduate degree from Loras College in Dubuque Iowa. He then went on to medical school at Loyola University Chicago's Stritch School of medicine where he completed a MA in bioethics and health policy concurrently with his MD. During medical school Dr. Bahr developed a passion for global health.

He then went on to the University of Minnesota where he trained in internal medicine and infectious diseases. It was during this training that he began to develop his career path at the intersection of infectious diseases research and global health. Dr. Bahr is passionate about leveraging his expertise to work on improving outcomes in conditions that disproportionately affect disadvantaged populations.

As part of Dr. Bahr's training he received a prestigious Fogarty Fellowship from the NIH and spent that year in Uganda working to improve diagnosis of TB meningitis as part of team at the Infectious Diseases Institute of Makerere University. Dr Bahr continues to work closely with collaborators in Uganda and around the world with a heavy focus on improving outcomes in persons with TB meningitis and cryptococcal meningitis. He currently has NIH funding with a focus on improving the diagnosis of TB meningitis and histoplasmosis and has established new collaborations to work on HIV-associated histoplasmosis.

Education and Training
  • BS, Biochemistry, Loras College, Dubuque, Iowa
  • MD, Medicine, Loyola University Chicago Stritch School of Medicine, Maywood, Illinois
  • MA, Bioethics and Health Policy, Loyola University Chicago Stritch School of Medicine, Maywood, Illinois
  • Residency, Internal Medicine, University of Minnesota, Minneapolis, Minnesota
  • Other, Internal Medicine, University of Minnesota, Minneapolis, Minnesota
  • Clinical Fellowship, Infectious Diseases, University of Minnesota, Minneapolis, Minnesota
  • Clinical Fellowship, Infectious Diseases, University of Kansas, Kansas City, Kansas
Licensure, Accreditations & Certifications
  • ABIM Infectious Diseases Certification, ABIM
  • ABIM Internal Medicine Certification, ABIM
  • Physician License, KS Board of Healing Arts
Professional Affiliations
  • American College of Physicians, Fellow, 2017 - Present
  • Infectious Disease Society of America, Member, 2012 - Present

Research

Overview

Much of Dr Bahr's current research is focused on improving diagnosis of two infectious diseases - histoplasmosis and TB meningitis. Both of these conditions occur in the U.S. and globally. Histoplasmosis is relatively common in Kansas. Both of these conditions can be deadly if they occur in people living with HIV. Dr. Bahr has chosen to work in these areas because they disproportionally affect underserved populations. Dr. Bahr is also interested in other infections that similarly affect underserved populations, infections of the central nervous system, the expanding epidemiology of endemic fungi, and diagnostic testing in infectious diseases.

Current Research and Grants
  • Novel diagnostic development for TB meningitis and histoplasmosis, NIH, PI
Publications
  • Donovan, J, Cresswell, F., V, Thuong NTT, Boulware, D., R, Thwaites, G., E, Bahr, N., C. 2020. Xpert MTB/RIF Ultra for the Diagnosis of Tuberculous Meningitis: A Small Step Forward.. Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 71 (8), 2002-2005
  • Martyn, E., M, Bangdiwala, A., S, Kagimu, E, Rutakingirwa, M., K, Kasibante, J, Okirwoth, M, Stead, G, Wadda, V, Pullen, M., F, Bold, T., D, Meya, D., B, Boulware, D., R, Bahr, N., C, Cresswell, F., V. 2021. Cerebrospinal fluid bacillary load by Xpert MTB/RIF Ultra PCR Cycle Threshold value predicts two-week mortality in HIV-associated tuberculous meningitis.. Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 73 (9), e3505-10
  • Martyn, E., M, Bangdiwala, A., S, Kagimu, E, Rutakingirwa, M., K, Kasibante, J, Okirwoth, M, Stead, G, Wadda, V, Pullen, M., F, Bold, T., D, Meya, D., B, Boulware, D., R, Bahr, N., C, Cresswell, F., V. 2021. Cerebrospinal fluid bacillary load by Xpert MTB/RIF Ultra PCR Cycle Threshold value predicts two-week mortality in HIV-associated tuberculous meningitis.. Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 73 (9), e3505-10
  • Davis, C, Wheat, L., J, Myint, T, Boulware, D., R, Bahr, N., C. 2020. Efficacy of Cerebrospinal Fluid Beta-d-Glucan Diagnostic Testing for Fungal Meningitis: a Systematic Review.. Journal of clinical microbiology, 58 (4)
  • Cresswell, Fiona., V, Tugume, L, Bahr, Nathan., C, Kwizera, R, Bangdiwala, A., S, Musubire, A., K, Rutakingirwa, M, Kagimu, E, Nuwagira, E, Mpoza, E, Rhein, J, Williams, D., A, Muzoora, C, Grint, D, Elliott, A., M, Meya, D., B, Boulware, D., R. 2020. Xpert MTB/RIF Ultra for the diagnosis of HIV-associated tuberculous meningitis: a prospective validation study.. The Lancet. Infectious diseases, 20 (3), 308-317
  • Pormohammad, Ali, Nasiri, Mohammad., Javad, McHugh, Timothy., D., Riahi, Seyed., Mohammad, Bahr, Nathan., C.. 2019. A Systematic Review and Meta-analysis of the Diagnostic Accuracy of Nucleic Acid Amplification Tests for Tuberculous Meningitis. JOURNAL OF CLINICAL MICROBIOLOGY, 57 (6), e01113-18
  • Cresswell, Fiona., V, Bangdiwala, Ananta., S, Meya, David., B, Bahr, Nathan., C, Vidal, Jose., E, Török, M., Estee, Thao, L., TP, Thwaites, Guy., E, Boulware, David., R. 2018. Absence of Cerebrospinal Fluid Pleocytosis in Tuberculous Meningitis is a Common Occurrence in HIV Co-infection and a Predictor of Poor Outcomes.. International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases, 68, 77-78. https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC5893425&blobtype=pdf
  • Bahr, Nathan, Nuwagira, Edwin, Evans, Emily., E., Cresswell, Fiona., V., Bystrom, Philip., V., Byamukama, Adolf, Bridge, Sarah., C., Bangdiwala, Ananta., S., Meya, David., B., Denkinger, Claudia., M., Muzoora, Conrad, Boulware, David., R.. 2018. Diagnostic accuracy of Xpert MTB/RIF Ultra for tuberculous meningitis in HIV-infected adults: a prospective cohort study. LANCET INFECTIOUS DISEASES, 18 (1), 68-75. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5739874/pdf/main.pdf
  • Rhein, J, Bahr, Nathan, Morawski, B., M, Schutz, C, Zhang, Y, Finkelman, M, Meya, D., B, Meintjes, G, Boulware, D., R. 2014. Detection of High Cerebrospinal Fluid Levels of (1→3)-β-d-Glucan in Cryptococcal Meningitis.. Open forum infectious diseases, 1 (3), ofu105. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4324234/pdf/ofu105.pdf
  • Bahr, Nathan, Rolfes, M., A, Musubire, A, Nabeta, H, Williams, D., A, Rhein, J, Kambugu, A, Meya, D., B, Boulware, D., R. 2014. Standardized electrolyte supplementation and fluid management improves survival during amphotericin therapy for cryptococcal meningitis in resource-limited settings.. Open forum infectious diseases, 1 (2), ofu070. https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC4281785&blobtype=pdf