Skip to main content

Division Leadership

A headshot of Ryan O'Connell

Ryan O'Connell

Division Chief

Ryan O’Connell joined our faculty in 2011 and is now a Professor of Pathology and holds the John M. Matsen Presidential Endowed Chair. Dr. O’Connell is recognized nationally for his contributions to the field of non-coding RNAs in immune regulation, and has a strong commitment to training graduate students and postdocs. In 2016 Dr. O’Connell shepherded the formation and success of the institutional 3i initiative, and more recently he has worked to help establish the MAGIC (Microbiota and Gastrointestinal Immunology Consortium) Center. Dr. O’Connell is currently focused on leadership of the M&I Division in his role as Division Chief.

A headshot of Hans Haecker

Hans Haecker

Associate Chief / Director of Graduate Studies

Hans Haecker joined our faculty in 2019 as Professor of Pathology, following his tenure at the St. Jude Children’s Research Hospital from 2005-2019. He is internationally recognized for his research on innate immunity, inflammation, and drug discovery. Dr. Haecker is passionate about mentoring and training the next generation of scientists. He now serves as the Director of Graduate Studies for the Microbiology & Immunology graduate program. Dr. Haecker has held key leadership roles, including chair of the Departmental Advisory Committee for faculty promotions and director of the flagship Basic Immunology course. He is co-founder of the diagnostics company NanoSpot.ai, reflecting his broader commitment to translating research into impactful real-world applications.

A headshot of Gianna Hammer

Gianna Hammer

Director of Postdoctoral Affairs

Gianna Hammer joined in 2022, having moved her lab from Duke University. Dr. Hammer has been named a Pew Scholar, a V scholar for Cancer Research, and a Burroughs Welcome Fund Investigator in the Pathogenesis of Infectious Disease. Dr. Hammer’s key mentoring philosophies comes from her own PhD mentor, who firmly held that “everybody must be trained”. This philosophy fuels Dr. Hammer’s commitment to provide opportunities for new scientists to grow. Dr. Hammer fosters this in her lab and in her national service, which include AAI’s diversity initiatives, and the Damon Runyan Postdoctoral Fellowship committee.

Research Focus for our Microbiology and Immunology Labs

Host Pathogen Interactions

Evavold, Fairfax, Hale, Hammer, Johnson, Lamb, Leung, Roy, Williams, Weis

Microbiome

Matt Bettini, Haecker, Gordts, Hammer, Leung, Lubin, O’Connell, Round, Stephens, Uchida, Weis

Molecular Microbiology

Carey, Johnson, Lubin, Round, Weis

Autoimmunity

Maria Bettini, Matt Bettini, Jensen, Evavold, Haecker, Lo, Petrey, Tantin, Young, Uchida, Weller

Mucosal Immunology

Matt Bettini, Gordts, Hammer, Lubin, Petrey, O’Connell, Round, Stephens, Uchida, Weis

Tumor Immunology

Matt Bettini, Hammer, O’Connell, Reeves, Round, Williams, Young, Weis

Inflammation

Gordts, Haecker, Hammer, Leung, Lo, O’Connell, Petrey, Rondina, Uchida, Zhu

Neuroimmunology

Maria Bettini, Evavold, Hammer, Lamb, O’Connell, Round, Tantin, Zhu

Drug Discovery and Vaccine Development

Gordts, HaeckerHale, O’Connell, Roy, Williams

Immune Development

Beaudin, Fairfax, Matt Bettini, Haecker, Roy, Tantin 

Immunoinformatics

Hale, Lamb, Stephens

Immunometabolism

Maria Bettini, Gordts, Fairfax, Round, Tantin

    Microbiology and Immunology Faculty

    A headshot of Maria Bettini

    Maria Bettini, PhD

    Professor

     

    Research: T cell biology and metabolism; Regulatory T cells; Autoimmunity

     

    maria.bettini@path.utah.edu

    A headshot of Matt Bettini

    Matt Bettini, PhD, BS, MS

    Professor

    Research: Thymocyte development; Autoimmunity; CAR T cell signaling

     

    matt.bettini@path.utah.edu

    A headshot of Allison Carey

    Allison Carey, MD, PhD

    Assistant Professor

    Research: Mycobacteria; Antibiotic resistance; Advanced genomic screening technologies
     

    allison.carey@path.utah.edu

    A headshot of Brian Evavold

    Brian Evavold, PhD

    Professor, Vice Chair of Research

     

    Research: Biophysical parameters of TCR activation; T cell function in infection and autoimmunity; Neuroimmunology

    brian.evavold@path.utah.edu

    A headshot of Keke Fairfax

    Keke Fairfax, PhD

    Associate Professor

     

    Research: Maternal impact on immune system development; Immune response to parasitic infections; Chronic infection and autoimmunity 

    keke.fairfax@path.utah.edu

    An outdoor headshot of Philip Gordts, with green foliage in the background

    Philip Gordts, PhD

    Associate Professor

     

    Research: Glycobiology; Immunometabolism; Inflammation; Organ crosstalk in obesity and diabetes; Cardiometabolic disease

    Phlip.Gordts@path.utah.edu

    A headshot of Hans Haecker

    Hans Haecker, MD, PhD

    Professor

    Research: TLR signaling; Inflammatory diseases; Hematopoiesis; Drug development


    hans.haecker@path.utah.edu

    A headshot of Scott Hale

    J. Scott Hale, PhD

    Associate Professor

     

    Research: T cell memory; Thelper differentiation; Epigenetic programming



    scott.hale@path.utah.edu

    A headshot of Gianna Hammer

    Gianna Hammer, PhD

    Associate Professor

    Research: Trained immunity, gut, liver fibrosis, gut-brain, innate and adaptive responses to pathogens and microbiome, Colorectal cancer



    gianna.hammer@path.utah.edu

    A headshot of Peter Jensen

    Peter Jensen, MD

    Professor

     

    Research: Antigen processing and presentation; Non-classical class I MHC molecules
     

     

    peter.jensen@path.utah.edu

    A headshot of Jarrod Johnson

    Jarrod Johnson, PhD

    Assistant Professor

     

    Research: Host-virus interactions; Innate immune responses; HIV
     

     


    jarrod.johnson@path.utah.edu

    Portrait of Tracey

    Tracey Lamb, PhD

    Professor

     

    Research: Host-pathogen interactions; Parasitic, viral and bacterial pathogens; Neuroimmunology

     


       
    tracey.lamb@path.utah.edu

    A headshot of Baoyu Liu

    Baoyu Liu, PhD

    Assistant Professor

     

    Research: Biophysical parameters of TCR activation; CD8 T cells in autoimmunity 


     



    baoyu.liu@path.utah.edu

    A headshot of Wan-Lin Lo

    Wan-Lin Lo, PhD

    Assistant Professor

     

    Research: T cell receptor signaling; Ligand discrimination
     



    wan-lin.lo@path.utah.edu

    A headshot of Dr. Jean-Bernard Lubin

    Jean-Bernard Lubin, PhD

    Assistant Professor


    Research: Microbial genetics and biochemistry, early-life host-microbiota interactions, mucosal immunology

    jb.lubin@path.utah.edu

    A headshot of Ryan O'Connell

    Ryan O'Connell, PhD

    Professor, Division Chief

    Research: Mucosal immunology; miRNA; IBD; Colorectal cancer


    ryan.oconnell@path.utah.edu

    A headshot of Aaron Petrey

    Aaron Petrey, PhD

    Assistant Professor

     

    Research: IBD; extracellular matrix and inflammation; Platelet biology


    aaron.petrey@path.utah.edu

    A headshot of Melissa Reeves

    Melissa Reeves, PhD

    Assistant Professor

    Research: Tumor heterogeneity; Anti-tumor T cells; Tumor microenvironment


    melissa.reeves@hci.utah.edu

    June Round

    June Round, PhD

    Professor

     

    Research: Microbiota role in gastrointestinal and neurological diseases; Metabolism    


    june.round@path.utah.edu

    A headshot of Koushik Roy

    Koushik Roy, PhD

    Assistant Professor

     

    Research: Immunological Memory, Infection Immunity and its impact on cancer and autoimmunity



    koushik.roy@path.utah.edu

    A headshot of Alton Swennes

    Alton Swennes, DVM, MS, DACLAM

    Research Associate Professor

    Research: Veterinary medicine; Gnotobiotic mouse models

    Alton.Swennes@utah.edu

    A headshot of Dean Tantin

    Dean Tantin, PhD

    Professor

     

    Research: Transcriptional regulation of T cell responses; Autoimmunity; Cancer


    dean.tantin@path.utah.edu

    A headshot of Matt Williams

    Matt Williams, PhD

    Professor



    Research: T cell memory; T cell receptor; viral infections; Anti-tumor immunity

    matt.williams@path.utah.edu

    A headshot of Dr. Arabella Young, who is wearing a white lab coat

    Arabella Young, PhD

    Assistant Professor

    Research: Checkpoint inhibitor induced autoimmunity; Anti-tumor immunity

    arabella.young@hci.utah.edu

    A dark gray, plain outline of a person-shaped avatar against an off-white background

    Doug Cornwall, PhD

    Research Assistant Professor

     

    Research: Genomics; Evolutionary Ecology; Immunology; T-Cell Biology; Parasitology

    doug.cornwall@path.utah.edu

    An outdoor headshot of Vanessa Redecke, with green and yellow foliage in the background

    Vanessa Redecke, MD, PhD

    Research Assistant Professor

    Research: TLR signaling; Inflammatory diseases; Hematopoiesis; Drug development

    vanessa.redecke@path.utah.edu

    A headshot of Zac Stephens

    Zac Stephens, PhD

    Research Assistant Professor

     

    Research: Host-microbe interactions; Microbial ecology; Genomics


    zac.stephens@path.utah.edu

    A headshot of Warren Voth

    Warren Voth, PhD

    Research Assistant Professor

     

    Research: Gene regulation; Non-coding RNA



    warren.voth@path.utah.edu

    A headshot of Zemin Zhou

    Zemin Zhou, PhD

    Research Assistant Professor

     

    Research: Epitope processing and presentation; Autoimmunity


    zemin.zhou@path.utah.edu

    Adjunct Faculty Participating in PhD Program

    A headshot of Anna Beaudin

    Anna Beaudin, PhD

    Adjunct Associate Professor

    Research: Fetal hematopoiesis; Immune development; Disease susceptibility across lifespan


    Anna.Beaudin@hsc.utah.edu

    Headshot of Daniel Leung

    Daniel Leung, MD, MSc

    Adjunct Associate Professor

    Research: MAIT cells in mucosal infections; Co-infections; Global health; Human immunology

    Daniel.Leung@utah.edu

    A headshot of Amiko Uchida

    Amiko Uchida, MD

    Assistant Professor of Gastroenterology

    Research: Gastroenterology, Allergy, Microbiota, Diet, and Eosinophils

     

    An outdoor headshot of Allison Weis, smiling with green foliage in the background

    Alli Weis, PhD

    Adjunct Assistant Professor

    Research: Gut microbiome, colon cancer, tumor immunology, microbiology 

     

    A headshot of Melodie Weller

    Melodie Weller, PhD

    Adjunct Assistant Professor


    Research: Endogenous retroviruses; Autoimmunity; Sjogren’s; Oral health

    Melodie.Weller@hsc.utah.edu

    A headshot of Weiquan Zhu

    Weiquan (Wendy) Zhu, PhD

    Adjunct Instructor

    Research: Vascular stability; Inflammation; Arthritis; Sepsis

    weiquan.zhu@u2m2.utah.edu

    Non-PhD Participating Adjunct Faculty

    A headshot of Micah Drummond

    Micah Drummond, PhD

    Adjunct Assistant Professor

    Research: Skeletal muscle in age and disease recovery



    micah.drummond@hsc.utah.edu

    A headshot of Elena Enioutina

    Elena Enioutina, PhD

    Adjunct Assistant Professor

    Research: Phytodrugs as dietary supplements; Herbal medicine


    Elena.Enioutina@hsc.utah.edu

    A headshot of Suzanne Ostrand-Rosenberg

    Suzanne Ostrand-Rosenberg, PhD

    Adjunct Professor

    Research: MDSCs; Anti-tumor immunity


    suzanne.ostrand-rosenberg@path.utah.edu

    A headshot of Alexander Pastuszak

    Alexander Pastuszak, MD, PhD

    Adjunct Assistant Professor

    Research: Male infertility and Peyronie’s disease



    Alexander.Pastuszak@utah.edu

    A headshot of Matthew Rondina

    Matthew Rondina, MD, MS

    Adjunct Professor

    Research: Inflammation; Platelet biology; Immunothrombosis


    matthew.rondina@hsc.utah.edu

    A headshot of Adam Spivak

    Adam Spivak, MD, FACP

    Adjunct Assistant Professor

    Research: Antiretroviral therapy; HIV latency


    adam.spivak@hsc.utah.edu

    A headshot of Sankar Swaminathan

    Sankar Swaminathan, MD

    Adjunct Professor

    Research: EBV and susceptibility to cancer


    sankar.swaminathan@hsc.utah.edu

    A headshot of Dustin Williams

    Dustin L. Williams, PhD

    Adjunct Assistant Professor

    Research: Biofilms; Implant infection; Antibiotic development; Biomaterials

    dustin.williams@utah.edu

    A headshot of Sherwood Casjens

    Sherwood Casjens, PhD

    Professor Emeritus

    A dark gray, plain outline of a person-shaped avatar against an off-white background

    Raymond Daynes, PhD

    Professor Emeritus

    A headshot of Robert Fujinami

    Robert Fujinami, PhD

    Professor Emeritus

    A dark gray, plain outline of a person-shaped avatar against an off-white background

    Glenn Herrick, PhD

    Professor Emeritus

    A dark gray, plain outline of a person-shaped avatar against an off-white background

    Wai Mun Huang, PhD

    Professor Emeritus

    A headshot of Jerry Kaplan

    Jerry Kaplan, PhD

    Professor Emeritus

    A headshot of Gerald Spangrude

    Gerald J. Spangrude, PhD

    Professor Emeritus

    A headshot of David Stillman

    David J. Stillman, PhD

    Professor Emeritus

    Janis Weis

    Janis Weis, PhD

    Professor Emeritus