• Distinguished Professor of Molecular Immunology


Areas of Expertise

  • Host resistance to infection
  • Immune-mediated diseases: multiple sclerosis, and inflammatory bowel disease
  • T cells
  • Gastrointestinal microbiota; Gnotobiotics
  • Vitamins A & D regulation of immune function
  • Edible mushrooms
  • Selenium
  • Professor of Veterinary, Wildlife, and Ecological Toxicology


Areas of Expertise

  • Veterinary, Wildlife, and Ecological Toxicology
  • One Health
  • Declining Amphibians
  • Mycotoxins
  • Cyanobacterial (blue-green algal) toxins
  • Associate Professor of Food Science


Areas of Expertise

  • Understanding the mechanisms driving the evolution of Shiga toxin-producing E. coli virulence. Development of molecular subtyping techniques to track the spread of foodborne pathogens from farm-to-fork.
  • Professor of Molecular Toxicology and Carcinogenesis
  • Associate Chair, Molecular Cellular and Integrative Biosciences Graduate Program


  • Professor of Immunology
  • Immunology and Infectious Disease Undergraduate Advisor


Areas of Expertise

  • Regulation of innate immunity, hematopoiesis and cellular transformation by receptor tyrosine kinases.
  • IST Professor


Areas of Expertise

  • Computational analysis and prediction of biological interactions.
  • Extension Veterinarian
  • Senior Research Associate


Areas of Expertise

  • Mastitis and Milk Quality
  • Milking Equipment Performance
  • Bovine Hoof Health
  • Antimicrobial Resistance & On-farm Food Safety
  • Johne's Disease
  • Biosecurity and Infectious Disease Management
  • Epidemiology
  • Director, Animal Diagnostic Laboratory
  • Professor, Veterinary and Biomedical Sciences


Areas of Expertise

  • Diagnostic Microbiology
  • Veterinary Public Health
  • Food Safety
  • Epidemiology
  • New and Emerging Infectious Diseases
  • Professor of Veterinary and Biomedical Sciences
  • Associate Director for Strategic Initiative, Huck Institutes of the Life Sciences


  • Professor, Veterinary and Biomedical Sciences
  • Director, Animal Resource Program


Areas of Expertise

  • comparative medicine
  • animal models
  • infectious disease and biocontainment
  • rodent pathology
  • animal behavior
  • laboratory animal resource management
  • veterinary medicine
  • Associate Professor of Veterinary and Biomedical Sciences


Areas of Expertise

  • Immunologic mechanisms of Bordetella
  • Pathogenesis of Francisella tularensis
  • Host-pathogen interactions
  • Development of BSL-3 research programs
  • Clinical Associate Professor and Head of Microbiology
  • Animal Diagnostic Lab


Areas of Expertise

  • Diagnostic Virology & Serology
  • Zoonotic and Emerging Viruses
  • Negative strand RNA viruses
  • Avian and Mammalian influenza
  • Immune responses to viruses
  • Viral pathogenesis
  • Quantitative-omics approach to virus-host interactions
  • Assistant Professor of Biochemistry and Molecular Biology


Areas of Expertise

  • Molecular parasitology and structural biology of malaria (Plasmodium spp.).
  • Director, Flow Cytometry

  • Professor of Reproductive Physiology


Areas of Expertise

  • Reproductive immunology

Areas of Expertise

  • Interactions between the immune system and the reproductive system. 
  • Tombros Early Career Professor
  • Associate Professor of Molecular Toxicology
  • Associate Professor of Biochemistry & Molecular Biology


Areas of Expertise

  • Metabolomics
  • Microbiome
  • Drug Metabolism
  • Metabolism
  • Environmental Contaminants
  • Professor of Veterinary and Biomedical Sciences


Areas of Expertise

  • Hematology
  • Erythropoiesis
  • Anemia Research
  • Leukemia
  • Professor of Immunology and Molecular Toxicology
  • Co-Leader, Mechanisms of Carcinogenesis Program, Penn State Cancer Institute


Areas of Expertise

  • Micronutrient Selenium, Selenoproteins, and Redox Homeostasis
  • Macrophage Biology
  • Pathways of Inflammation and Resolution (wound healing)
  • Cancer (Leukemia) and Leukemia Stem Cells
  • Redox Regulation of Erythropoiesis During Inflammation
  • The Role of Selenoproteins in Gut Inflammation
  • Bioactive Lipid Mediators- Prostaglandins & Leukotrienes
  • Associate Professor of Nutritional Sciences and Physiology


Areas of Expertise

  • Cancer prevention
  • Metabolic and tumor-related effects of obesity, exercise, calorie restriction
  • Cancer vaccines and immunotherapy
  • Immune suppressive cells (MDSCs, Tregs)
  • Professor of Nutritional Science


Areas of Expertise

  • Vitamin A metabolism; hepatic retinoid function and gene expression; vitamin A in infection and immunity.
  • Professor of Molecular Virology
  • Director, Pathobiology Graduate Program


Areas of Expertise

  • Virology
  • Infectious Disease
  • Viral Budding
  • Cellular Trafficking
  • Virus-like Particles
  • Zoonoses
  • Assistant Professor of Veterinary and Biomedical Sciences


Areas of Expertise

  • Animal models of influenza
  • Airborne transmission of influenza viruses
  • Evolution of pandemic influenza viruses
  • Highly pathogenic avian influenza
  • Development of live-attenuated influenza vaccine platforms
  • High containment BSL3+ research
  • Assistant Professor of Biochemistry and Molecular Biology


Areas of Expertise

  • Neurovirology, genomics of pathogen variation, neuron-virus relationships.