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Volume 26, Number 12—December 2020
Synopsis

Mycoplasma bovis Infections in Free-Ranging Pronghorn, Wyoming, USA

Jennifer L. Malmberg, Donal O’Toole, Terry Creekmore, Erika Peckham, Hally Killion, Madison Vance, Rebecca Ashley, Marguerite Johnson, Christopher Anderson, Marce Vasquez, Douglas Sandidge, Jim Mildenberger, Noah Hull, Dan Bradway, Todd Cornish, Karen B. Register, and Kerry S. SondgerothComments to Author 
Author affiliations: Wyoming State Veterinary Laboratory, Laramie, Wyoming, USA (J.L. Malmberg, D. O’Toole, H. Killion, M. Vance, R. Ashley, M. Vasquez, T. Cornish, K.S. Sondgeroth); University of Wyoming Department of Veterinary Sciences, Laramie (J.L. Malmberg, D. O’Toole, M. Johnson, C. Anderson, D. Sandidge, T. Cornish, K.S. Sondgeroth); Wyoming Game and Fish Department, Laramie (T. Creekmore); Wyoming Game and Fish Department, Gillette, Wyoming, USA (E. Peckham); Wyoming Public Health Laboratories, Cheyenne, Wyoming, USA (J. Mildenberger, N. Hull); Washington Animal Disease Diagnostic Laboratory, Pullman, Washington, USA (D. Bradway); US Department of Agriculture National Animal Disease Center, Ames, Iowa, USA (K.B. Register)

Main Article

Table 1

Summary of pronghorn cases associated with pneumonia outbreak, Wyoming, USA, 2019*

Case no. Age category and sex Sample type Histopathologic results Mycoplasma bovis IHC result M. bovis PCR test result Aerobic culture M. bovis culture
1
 Adult male
 Lung, kidney, liver, spleen, bone marrow
 Exudative pneumonia
 Detected
 Detected
 Trueperella pyogenes
 Positive
2
 Adult female
 Lung
 Pleuropneumonia with caseous abscesses
 Detected
 Detected
 No growth
 Positive
3
 Adult female
 Whole carcass
 Bronchointerstitial pneumonia, fibrinonecrotic and suppurative with fibrinous pleuritis
 Detected
 Detected
 Mixed bacteria
 Positive
4
 Adult female
 Lung, kidney, liver, spleen
 Pleuropneumonia with caseonecrotic abscesses
 Detected
 Detected
 Mixed bacteria
 Positive
9
 Yearling male
 Whole carcass
 Bronchointerstitial pneumonia, fibriononecrotic and suppurative with fibrinous pleuritis, caseonecrotic abscesses, lymphocytic cuffing
 Detected
 Detected
 Mannheimia spp.,
Histophilus spp.
 Positive
5
 Adult female
 Lung
 NE
 NA
 Detected
 NA
 Positive
6
 Adult female
 Lung, kidney, liver, spleen
 NE
 NA
 Detected
 NA
 Positive
7
 Adult female
 Lung
 NE
 NA
 Detected
 NA
 Positive
8 Adult female Lung NE NA Detected NA Positive

*IHC, immunohistochemical; NA, not applicable; NE, not examined.

Main Article

Page created: September 30, 2020
Page updated: November 19, 2020
Page reviewed: November 19, 2020
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.
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