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infectious disease

Innovating to understand, model, and mitigate threats

Alhagie K. Cham, Post Doc, prepares a sample for electrophoresis in the Pathogen and Pest Lab inside the Agriculture and Natural Resources Building at the University of Tennessee, Knoxville.
Associate Professor of Biomedical and Diagnostic Sciences Girish Neelakanta explains his experiment to comparative experimental medicine PhD students in the Vector-borne Disease and Microbiology Lab at the College of Veterinary Medicine at the University of Tennessee, Knoxville.
Emily Bowden, 3rd year microbiology graduate student, works with test tube samples in a Marine Microbiology Lab fridge in the Science and Engineering Research Facility (SERF) at the University of Tennessee, Knoxville.

When the COVID-19 pandemic catapulted infectious disease research into the public spotlight, UT experts were ready to contribute valuable insights. Since then, UT has continued to strengthen and expand our capacity to understand and combat viral, bacterial, parasitic, and vector-borne infectious diseases.

UT’s interdisciplinary experimental and computational research builds knowledge at multiple scales, from molecular mechanisms up to global populations. Ultimately, it informs data-driven public health policies, education, interventions, and drug and vaccine development.

Extreme close-up of an insect, showing detailed features such as eyes and body texture.

UT’s Approach

Faculty study molecular mechanisms involved in bacterial colonization and infections. As bacterial resistance to antimicrobials continues to increase and threaten lives around the world, UT researchers seek to understand and mitigate the emergence of resistance, particularly in agricultural communities. Their work, which contributes to UT’s Precision Health and Environment scholarship community, informs strategies to reduce bacterial transmission from animals to humans.

UT researchers also study infectious disease vectors—including ticks, mosquitoes, and other arthropods—and the pathogens they carry, including tick-borne bacteria that cause human anaplasmosis and the parasitic protozoa Toxoplasma gondii. They delve into evolution and genetics, vector-pathogen-host interactions, and the ecological and epidemiological factors that influence disease emergence and transmission across geographies and species. Their work guides public health interventions and creates new possibilities for vaccines that prevent vector-borne disease transmission.

At the intersection of chronic and infectious diseases, UT researchers are revealing new insights into how autoimmune diseases, diabetes, and obesity disrupt immune responses to infection.

Looking forward, UT faculty seek to protect the nation from the human and economic costs of future pandemics. They have contributed to new multidisciplinary frameworks for understanding viral transmission and predicting outbreaks. Together, these efforts aim to strengthen capacity for pandemic preparedness.

“We study population genetics of pathogens to ultimately gain insights into transmission patterns. How does human migration carry pathogens to other parts of the world? If there’s an outbreak, where did it come from? Genetic information helps you see where pathogens start and how they spread.”

— Chunlei Su, Professor of Microbiology

Alhagie K. Cham, Post Doc, prepares a sample for electrophoresis in the Pathogen and Pest Lab inside the Agriculture and Natural Resources Building at the University of Tennessee, Knoxville.
Associate Professor of Biomedical and Diagnostic Sciences Girish Neelakanta explains the process of using a Zeiss microinjection machine to PhD students Naveen Pant and Kehinde Faso in the Vector-borne Disease and Microbiology Lab at the College of Veterinary Medicine at the University of Tennessee, Knoxville.
PhD students look through a microscope as Associate Professor of Biomedical and Diagnostic Sciences Girish Neelakanta explains his experiment to comparative experimental medicine in the Vector-borne Disease and Microbiology Lab at the College of Veterinary Medicine at the University of Tennessee.
Associate Professor of Biomedical and Diagnostic Sciences Hameeda Sultana explains research to comparative experimental medicine PhD students in the Vector-borne Disease and Microbiology Lab at the College of Veterinary Medicine at the University of Tennessee.
A detail as Alhagie K. Cham, Post Doc, prepares a sample for electrophoresis in the Pathogen and Pest Lab inside the Agriculture and Natural Resources Building at the University of Tennessee, Knoxville.

Highlights

Associate Professors of Biomedical and Diagnostic Sciences Girish Neelakanta and Hameeda Sultana use a Zeiss microinjection machine in the Vector-borne Disease and Microbiology Lab at the College of Veterinary Medicine at the University of Tennessee, Knoxville.

NIH Renews Grant for Studying Tick-Borne Disease

Associate professors of veterinary medicine and vector-borne disease researchers Girish Neelakanta and Hameeda Sultana successfully renewed National Institutes of Health funding for five years to continue studying transmission of the bacterial pathogen that causes human anaplasmosis. 

Learn more about this NIH-funded research. 

Photo of a vampire bat being held by a gloved human hand.

Working at the Intersection of Behavioral and Disease Ecology

Assistant Professor of Ecology and Evolutionary Biology Sebastian Stockmaier studies the highly social vampire bat to understand how host behaviors affect pathogen transmission, how pathogens affect host behaviors, and how behavioral interactions may predict cross-species transmission.

Meet Stockmaier and learn about his research.

Neutrophils, shown in red, release neutrophil extracellular traps (NETs), in blue, to entrap and kill bacteria such as Staphylococcus aureus, shown in green.

$1.86 Million NIH Grant Expands Immunology Research

Assistant Professor of Microbiology Andrew Monteith was awarded a National Institutes of Health grant to further study interactions between metabolic processes and how certain white blood cells fight pathogens. His work will reveal how chronic diseases interfere with the body’s immune responses to infections.

Learn more about this research.

A researcher drops a liquid into a test tube in a lab at the University of Tennessee, Knoxville.

UT’s Rising Stars of Microbiology Selected for Competitive Initiative

Three early-career faculty members were selected for the American Society for Microbiology’s “Rising Star in the Field of Host-Microbe Interactions” initiative, which featured review articles by top researchers in a special edition of Infection and Immunity.

Meet these researchers and their work.

A detail of a Zeiss microinjection machine in the Vector-borne Disease and Microbiology Lab at the College of Veterinary Medicine at the University of Tennessee

Facilities & Initiatives

Advanced computational and experimental facilities across UT provide the infrastructure for studying infectious diseases.

  • AI Tennessee
  • Biorepository and Integrative Genomics (BIG) Initiative 
  • Center of Excellence in Livestock Diseases & Human Health 
  • Infrastructure for Scientific Applications and Advanced Computing 
  • Precision Health and Environment Cluster Hire Initiative  
  • UT College of Veterinary Medicine Diagnostic Laboratory Services 
  • UT One Health Initiative 
Chris Howard, HPSC account manager, pulls a server for inspection at the High Performance Scientific Computing’s ISAAC (Infrastructure for Scientific Applications and Advanced Computing) data center on at the University of Tennessee.

Researchers

  • Qiang He

    Qiang He

    Professor, Civil and Environmental Engineering

    Human exposome, environmental health, environmental microbiology, indoor environment, microbiome, microbial source tracking, metagenomics, water quality, microbial contamination, infection prevention, public health

  • Debra Miller

    Debra Miller

    Professor, School of Natural Resources and Biomedical and Diagnostic Sciences

    One Health, food/nutrition insecurity, loss of biodiversity, climate change impacts, impacts of anthropogenic stressors, wildlife, pathology, conservation, amphibians, sea turtles

  • Agricola Odoi

    Agricola Odoi

    Professor and Assistant Dean for Research and Graduate Studies, Veterinary Medicine

    Health disparities, spatial epidemiology, geographic information systems, health geography, population health, diabetes, heart disease, stroke, antimicrobial resistance, public health, social determinants of health

See all Infectious Disease faculty

Health and Wellness

Research Areas
Biomedical Innovation
Behavioral, Social and Mental Health
Cancer and Other Chronic Diseases
Computational Health and Medicine
Food, Nutrition, and Exercise
Infectious Disease

UT Research supports five gateways defining the university’s strategic priorities—Health and Wellness is one of them. Find out about the other four gateways here.
The university is committed to recruiting top-tier faculty members across multiple disciplines who are interested in addressing the nation’s greatest challenges. Learn more about the Cluster Hire Initiatives.
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