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Volume 25, Number 9—September 2019

Theileria orientalis Ikeda Genotype in Cattle, Virginia, USA

Vanessa J. Oakes, Michael J. Yabsley, Diana Schwartz, Tanya LeRoith, Carolynn Bissett, Charles Broaddus, Jack L. Schlater, S. Michelle Todd, Katie M. Boes, Meghan Brookhart, and Kevin K. LahmersComments to Author 
Author affiliations: Virginia–Maryland College of Veterinary Medicine, Blacksburg, Virginia, USA (V.J. Oakes, T. LeRoith, S.M. Todd, K.M. Boes, M. Brookhart, K.K. Lahmers); University of Georgia, Athens, Georgia, USA (M.J. Yabsley); Kansas State University, Manhattan, Kansas, USA (D. Schwartz); Virginia Department of Agriculture and Consumer Services, Richmond, Virginia, USA (C. Bissett, C. Broaddus); US Department of Agriculture, Ames, Iowa, USA (J.L. Schlater)

Main Article


Diagnostic testing results for Theileria orientalis Ikeda genotype in cattle, Virginia, USA*

Animal ID Icterus/PCV/parasitemia Anaplasma tick Origin Date
I1 Yes /12.0%/6% Negative (NVSL) Albemarle (Index farm) Sep 2017, Dec 2017
I2 No Negative (NVSL) Albemarle (Index farm) Dec 2017, May 2018
I3 No Negative (NVSL) Albemarle (Index farm) Dec 2017, May 2018
I4 No Negative (ViTALS) Albemarle (Index farm) Jul 2018
I5 No Negative (ViTALS) Albemarle (Index farm) Jul 2018
Al1 No Negative (ViTALS) Albemarle Aug 2018
Al2 Yes/10.0%/NA Negative (ViTALS) Albemarle Oct 2018
P1 Yes/14.4%/16.4% Positive (ViTALS) Pulaski Oct 2018
A1 No Negative (ViTALS) Augusta Oct 2018
A2 No Negative (ViTALS) Augusta Oct 2018

*ID, identification; PCV, packed cell volume; NA, not available; NVSL, National Veterinary Services Laboratories; ViTALS, Virginia Tech Animal Laboratory Services.

Main Article

Page created: August 21, 2019
Page updated: August 21, 2019
Page reviewed: August 21, 2019
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.