Casey Theriot | Associate Professor

Casey is an Associate 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 Associate

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




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.




Colleen Pike | Postdoctoral Fellow

Colleen joined the Theriot lab in January 2020 after receiving her PhD in Molecular Biology from The University of Delaware. Colleen is currently exploring the mechanisms by which C. difficile exploits the host inflammatory response to obtain nutrients for growth.




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.




Sam McMillan | Graduate Student

Sam joined the Theriot lab in December 2019. He completed his BS in Microbiology at NC State University. Sam is currently exploring how to design probiotics to deliver bile acid altering enzymes to the gastrointestinal tract.




Molly Vanhoy | Undergraduate Researcher

Molly joined the Theriot Lab in January 2021 as an undergraduate researcher. She is a senior at NC State University majoring in Microbiology and minoring in Leadership in Agriculture and Life Sciences. Along with Dr. Matt Foley, Molly works on understanding growth conditions and competition between members of the gut microbiota and C. difficile.





Lab alumni

  • Gracie Vestal: undergraduate researcher 2019-2020
  • Garrison Allen: undergraduate researcher 2018-2020
  • Ruth Parsons: undergraduate researcher 2017-2020
  • Dr. Joshua Fletcher: postdoctoral fellow 2016-2020
  • Dr. Jenessa Winston: clinical investigator and PhD candidate 2015-2019
  • Ivy Gold: undergraduate researcher Summer 2019
  • Tommy Burdette: veterinary scholar’s program Summer 2018
  • Elissa Foss: research technician 2016-2017
  • Dr. 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