Casey Theriot | Assistant Professor

Casey is an Assistant Professor in the Department of Population Health and Pathobiology at NCSU College of Veterinary Medicine. Her research focuses on gastrointestinal microbiology, metabolomics, and infectious diseases.

CVResearch Gate | LinkedIn | Google Citations | Phone: +1 (919) 513-0711



Rajani Thanissery | Research Assistant

Rajani grew up in Pondicherry, India from where she earned her degree in Veterinary Medicine. She moved to the U.S. in 2008 and received her MS from Auburn University and PhD from NCSU before joining the Theriot lab in 2015. Rajani manages the Theriot Lab. She is also studying how microbial-mediated secondary bile acids affect the C. difficile life cycle. | Phone: +1 (919) 515-5233




Jenessa Winston | Clinical Investigator


Jenessa joined the Theriot lab in 2015 after completion of her DVM, Small Animal Rotating Internship, and Small Animal Internal Medicine Residency at NCSU. She is currently a Clinical Investigator and NIH T32 NCSU Comparative Medicine and Translation Research Program trainee. Jenessa is studying the interaction between the gut microbiota, host and bacterial derived bile acids, and C. difficile infection in a mouse model of CDI.



Josh Fletcher | Postdoctoral Fellow

Josh joined the Theriot lab in September 2016 after receiving his PhD in Genetics from The University of Iowa. Josh is currently exploring the mechanisms by which C. difficile colonizes the antibiotic depleted gut and obtains nutrients for growth.




Matt Foley | Postdoctoral Fellow

Matt joined the Theriot lab in May 2018 after receiving his PhD in Microbiology from the University of Michigan. Matt is currently exploring how we can use bile acid altering enzymes for rational manipulation of the bile acid pool, the microbiota, and host physiology in the GIT.




Alissa Rivera | Animal Technician

Alissa joined the Theriot lab in October 2016. She is originally from Puerto Rico, where she earned her BS in Biotechnology from the University of Puerto Rico. Alissa manages all in vivo experiments for the Theriot Lab.




Amber Reed | Graduate Student

Amber joined the Theriot lab in January 2017. Amber completed her BS at Guilford College in Greensboro, NC. She is studying how different Clostridia are able to produce secondary bile acids and how this alters the gut microbiota and CDI.




Ruth Parsons | Undergraduate Researcher

Ruth joined the Theriot lab in September 2017 as an undergraduate researcher. She is a sophomore at NC State University majoring in Biochemistry and Spanish. Ruth is making specific genetic mutations in C. difficile to understand what is required for colonization in the gut.





Lab alumni

  • Elissa Foss: Research Technician 2016-2017
  • Susan Gardner: Postdoctoral Fellow 2016-2017
  • Kevin Chang: veterinary scholar’s program Summer 2016
  • Allyson Patterson: undergraduate researcher Spring 2016
  • Kaitlyn George: undergraduate researcher Spring 2016