Faculty
Faculty with Primary Appointments in Microbiology
![Neal M. Alto, Ph.D.](/departments/microbiology/assets/neal-alto-256x256.jpg)
Professor of Microbiology
Research interests: Intersection between human signal-transduction and bacterial pathogenesis; use of biochemical and cell biological analysis to define molecular mechanisms of microbial infectious disease.
Website: Alto Lab
![Xinyun (Sherry) Cao, Ph.D.](/departments/microbiology/assets/xinyun-cao-256x256.jpg)
Assistant Professor of Microbiology
Research interests: Transcription and regulation in Clostridioides difficile and other bacterial species; structure and function of RNA polymerase; high-throughput screening of transcription inhibitors.
Website: Cao Lab
![Nicholas K. Conrad, Ph.D.](/departments/microbiology/assets/nicholas-conrad-256x256.jpg)
Professor of Microbiology
Research interests: Gene expression, RNA biogenesis, and RNA decay in the Kaposi's sarcoma-associated herpesvirus and its human host cell.
Website: Conrad Lab
![Iván D’Orso, Ph.D.](/departments/microbiology/assets/ivan-dorso-256x256.jpg)
Professor of Microbiology
Research interests: HIV-host interplay; mechanisms of transcription regulation, and evolution of viral-host macromolecular assemblies.
Website: D’Orso Lab
![Kevin Forsberg, Ph.D.](/departments/microbiology/assets/kevin-forsberg-256x256.jpg)
Assistant Professor of Microbiology
Research interests: The molecular determinants of phage-bacterial infection outcomes; gene discovery; evolutionary arms races; origins of new function.
Website: Forsberg Lab
![Don Gammon, Ph.D.](/departments/microbiology/assets/don-gammon-256x256.jpg)
Assistant Professor of Microbiology
Research interests: Virus-Host interactions; invertebrate model systems; RNA/DNA virus replication; immune evasion and pathogenesis; viral manipulation of host cytoskeletal networks; virus co-infections.
Website: Gammon Lab
![David R. Hendrixson, Ph.D.](/departments/microbiology/assets/david-hendrixson-256x256.jpg)
Professor of Microbiology
Research interests: Identification of bacterial virulence and colonization factors; regulation of flagellar organelle biosynthesis and division; analysis of bacterial signal transduction pathways.
Website: Hendrixson Lab
![Julie Pfeiffer, Ph.D.](/departments/microbiology/assets/pfeiffer-256x256.jpg)
Chair, Microbiology
Professor of Microbiology
Research interests: Virus-host interactions, pathogenesis, and evolution; virus-microbiota interactions; circadian control of viral infection.
Website: Pfeiffer Lab
![John W. Schoggins, Ph.D.](/departments/microbiology/assets/john-schoggins-256x256.jpg)
Professor of Microbiology
Research interests: Virus-host interactions; innate immunity to viral infections; interferon signaling pathways and effector mechanisms.
Website: Schoggins Lab
![Chien-Ting Wu, Ph.D.](/departments/microbiology/assets/chien-ting-wu-256x256.jpg)
Assistant Professor of Microbiology
Research interests: Virus-host interaction in the nasal/oral epithelium; the interaction between metabolism and immunity; virus infections-induced tumorigenesis in the upper aerodigestive tract.
Website: Wu Lab
Faculty with Secondary Appointments in Microbiology
![John Beckham, M.D.](/departments/microbiology/assets/john-beckham.png)
Division Chief, Infectious Diseases and Professor, Internal Medicine and Microbiology
Research interests: Infectious diseases, neurological infections, arbovirus pathogenesis, and neurodegeneration.
Website: Beckham Lab
![Chad A. Brautigam, Ph.D.](/departments/microbiology/assets/brautigam-256x256.jpg)
Professor, Biophysics and Microbiology
Research interests: Protein-protein and protein-ligand interactions; structural elucidation of enzymatic mechanisms.
Website: Brautigam Lab
![David Greenberg, M.D.](/departments/microbiology/assets/greenberg-256x256.jpg)
Professor, Internal Medicine and Microbiology
Research interests: Gram-negative infections in the immunocompromised host; host-pathogen interactions; novel therapeutics in Gram-negative infections.
![Lora Hooper, Ph.D.](/departments/microbiology/assets/hooper-256x256.jpg)
Chair, Immunology
Professor of Immunology and Microbiology
Research interests: Host-microbial interactions; commensal bacteria; mucosal immunity.
Website: Hooper Lab
![Jeffrey S. Kahn, M.D., Ph.D.](/departments/microbiology/assets/kahn-256x256.jpg)
Chief, Division of Pediatric Infectious Disease
Professor of Pediatrics and Microbiology
Research Interests: Molecular epidemiology and biology of respiratory syncytial virus; newly emerging human viral pathogens.
Website: Kahn Lab
![Andrew Koh, M.D.](/departments/microbiology/assets/koh-256x256.jpg)
Associate Professor of Pediatrics and Microbiology
Research Interests: Pathogenesis of Candida albicans and Pseudomonas aeruginosa; host-pathogen interactions.
Website: Koh Lab
![Jessica Moreland, M.D.](/departments/microbiology/assets/moreland-256x256.jpg)
Associate Dean for Faculty Development
Professor of Pediatrics and Microbiology
Research Interests: Cell biology of neutrophil-based inflammation under infectious and sterile inflammatory conditions, specifically focused on neutrophil priming by both host and bacterial stimuli; role of NAPDH oxidase 2 in signaling generated by TLR ligands and TNF; regulation of the NADPH oxidase function in neutrophils.
![Josephine Ni, M.D.](/departments/microbiology/assets/ni-256x256.jpg)
Assistant Professor, Internal Medicine and Microbiology
Research Interests: Bacterial colonization of the healthy and inflamed intestinal tract; how biofilm formation contributes to intestinal colonization; developing new therapeutics to treat intestinal diseases.
Website: Ni Lab
![Robert Orchard, Ph.D.](/departments/microbiology/assets/orchard-256x256.jpg)
Assistant Professor of Immunology and Microbiology
Research Interests: Functional genomic CRISPR/Cas9 screens; mammalian physiology and immune responses to norovirus, influenza virus, and enterovirus.
Website: Orchard Lab
![Tiffany A. Reese, Ph.D.](/departments/microbiology/assets/reese-256x256.jpg)
Assistant Professor, Immunology and Microbiology
Research Interests: Herpesviruses; parasite co-infection and viral reactivation and latency phenotypes.
Website: Reese Lab
![Michael Shiloh, M.D., Ph.D.](/departments/microbiology/assets/shiloh-256x256.jpg)
Associate Professor of Internal Medicine (Infectious Disease) and Microbiology
Research Interests: Mycobacterium tuberculosis pathogenesis; role of carbon monoxide (CO) in host-pathogen interactions; innate immune response to intracellular pathogens.
Website: Shiloh Lab
![Josephine Thinwa, M.D., Ph.D.](/departments/microbiology/assets/thinwa-256x256.jpg)
Assistant Professor, Internal Medicine and Microbiology
Research Interests: Host-viral pathogen interaction, neurotropic viruses, autophagy and innate immunity.
Website: Thinwa Lab
![Nicolai S. C. van Oers, Ph.D.](/departments/microbiology/assets/van-oers-256x256.jpg)
Professor of Immunology and Microbiology
Research Interests: Regulation of immune responses and host-pathogen interactions by microRNAs; characterization of patients with primary immunodeficiency diseases.
![Nan Yan, Ph.D.](/departments/microbiology/assets/yan-256x256.jpg)
Professor of Internal Medicine (Infectious Disease) and Microbiology
Research Interests: Innate immune recognition of HIV and other retroviruses; innate immune sensing of self vs non-self nucleic acids; pathogenesis of autoimmune diseases such as Aicardi-Goutieres syndrome and lupus.
Website: Yan Lab
Emeritus Professors
![Michael V. Norgard, Ph.D.](/departments/microbiology/assets/norgard-256x256.jpg)
Professor Emeritus and Former Chair, Microbiology
Research interests: Regulation and roles of virulence-associated membrane lipoproteins in the Lyme disease spirochete, Borrelia burgdorferi; structure and function of membrane lipoproteins in the syphilis bacterium, Treponema pallidum.
Website: Norgard Lab
![Ellen S. Vitetta, Ph.D.](/departments/microbiology/assets/vitetta-256x256.jpg)
Professor Emeritus of Immunology and Microbiology
Research interests: Translational immunology; profiling and targeted therapy of human tumors; development and clinical testing of vaccines.
Website: Vitetta Lab