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Keith Chaffin

Associate Department Head for Clinical Programs & Professor of Large Animal Internal Medicine


Phone: (979) 845-3541

Mailstop: 4475

Department: VLCS

Photo of Chaffin, Keith


  • MHA Health Business and Administration, Texas A&M Health Science Center 2018
  • M.S. Veterinary Medicine & Surgery, Texas A&M University 1991
  • D.V.M. , North Carolina State University 1984
  • B.S. Zoology, North Carolina State University 1981


  • Diplomate, American College of Veterinary Internal Medicine (Large Animal Internal Medicine)
  • Texas Veterinary Medical License: 9947

Scholarly Interests

Equine internal medicine, pediatrics, respiratory disease and ultrasonography; Rhodococcus equi foal pneumonia; equine infectious disease; equine gastrointestinal disease; equine urogenital disease; and equine neurologic disease.


Signalment, clinical features and outcome for male horses with ureteral rents following perineal urethrotomy or corpus spongiotomy: thirty three cases (1989-2013)
Glass KG, Arnold CE, Varner DD, Blanchard T, Chaffin MK, Schumacher J
JAVMA. 2016
Use of serial quantitative PCR VapA fecal concentration for early detection of Rhodococcus equi pneumonia in foals.
Madrigal RG, Shaw SD, Witkowski LA, Sisson B, Blodgett GP, Chaffin MK, Cohen ND.
JVIM. 2016
Chagas disease in a neurologic horse from Texas.
Bryan LK, Hamer SA, Shaw S, Curtis-Robles R, Augckland LD, Hodo CL, Chaffin MK, Rech RR.
Journal of Parasitology. 2015
Estimating the sensitivity and specificity of real-time quantitative PCR of fecal samples for diagnosis of Rhodococcus equi pneumonia in foals.
Shaw SD, Cohen ND, Chaffin MK, Blodgett GP, Syndergaard M, Hurych D
JVIM. 2015
Composition and diversity of the fecal microbiome and inferred fecal metagenome does not predict subsequent pneumonia caused by Rhodococcus equi in foals.
Whitfield-Cargile CM, Cohen ND, Suchodolski J, Chaffin MK, Arnold CE, Dowd S, Blodgett GP.
Frequency of ultrasonographic visualization of the liver in the recommended sites for blind liver biopsy in healthy Quarter Horses.
Sammons SC, Norman TE, Chaffin MK, Cohen ND.
Detection of strain variation in isolates of Rhodococcus equi from an affected foal using repetitive sequence-based polymerase chain reaction.
Bolton T, Kuskie K, Halbert N, Chaffin K, Healy M, Lawhon S, Jackson A, Cohen N
J Vet Diagn Invest. 2010 22(4):611-5.

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