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Original Article


Caseous lymphadenitis outbreak in a small ruminant herd

Cord M Brundage, Angela Burmayan.


Cited By:1

Abstract
Background: Caseous lymphadenitis (CLA) is a chronic disease caused by the bacterium Corynebacterium pseudotuberculosis that affects small ruminants worldwide.
Aim: The objective of this case report is to describe an outbreak of CLA that occurred at the California State Polytechnic University, Pomona in the summer of 2019 and the management strategies employed there to contain spread.
Methods: After careful physical screening, blood serum samples from the entire herd ( n = 218 sheep, n = 32 goats ) were tested using the synergistic hemolysis inhibition (SHI) test to reveal antibodies present.
Results: Animals with titer counts above 1:64 and or containing CLA lesions were isolated and culled ( n = 33 sheep, n = 4 goats ) within two weeks of testing. Female sheep ( n = 160 ) had higher titer counts and were culled at a much higher rate than male sheep ( n = 58 ) ( 20 % vs. 1.72 % ), whereas male goats ( n = 9 ) more often had high titer counts and were culled as opposed to female goats ( n = 23 ) ( 33.33 % vs. 4.35 % ).
Conclusion: Vaccines were administered to the remainder of the herd following culling. Additional management strategies were employed, the outcome of which was a zero recurrence through 2020.

Key words: caseous lymphadenitis, small ruminants, sheep, goats, corynebacterium pseudotuberculosis


 
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How to Cite this Article
Pubmed Style

Brundage CM, Burmayan A. Caseous lymphadenitis outbreak in a small ruminant herd. Open Vet J. 2021; 11(4): 530-534. doi:10.5455/OVJ.2021.v11.i4.2


Web Style

Brundage CM, Burmayan A. Caseous lymphadenitis outbreak in a small ruminant herd. https://www.openveterinaryjournal.com/?mno=78919 [Access: February 13, 2024]. doi:10.5455/OVJ.2021.v11.i4.2


AMA (American Medical Association) Style

Brundage CM, Burmayan A. Caseous lymphadenitis outbreak in a small ruminant herd. Open Vet J. 2021; 11(4): 530-534. doi:10.5455/OVJ.2021.v11.i4.2



Vancouver/ICMJE Style

Brundage CM, Burmayan A. Caseous lymphadenitis outbreak in a small ruminant herd. Open Vet J. (2021), [cited February 13, 2024]; 11(4): 530-534. doi:10.5455/OVJ.2021.v11.i4.2



Harvard Style

Brundage, C. M. & Burmayan, . A. (2021) Caseous lymphadenitis outbreak in a small ruminant herd. Open Vet J, 11 (4), 530-534. doi:10.5455/OVJ.2021.v11.i4.2



Turabian Style

Brundage, Cord M, and Angela Burmayan. 2021. Caseous lymphadenitis outbreak in a small ruminant herd. Open Veterinary Journal, 11 (4), 530-534. doi:10.5455/OVJ.2021.v11.i4.2



Chicago Style

Brundage, Cord M, and Angela Burmayan. "Caseous lymphadenitis outbreak in a small ruminant herd." Open Veterinary Journal 11 (2021), 530-534. doi:10.5455/OVJ.2021.v11.i4.2



MLA (The Modern Language Association) Style

Brundage, Cord M, and Angela Burmayan. "Caseous lymphadenitis outbreak in a small ruminant herd." Open Veterinary Journal 11.4 (2021), 530-534. Print. doi:10.5455/OVJ.2021.v11.i4.2



APA (American Psychological Association) Style

Brundage, C. M. & Burmayan, . A. (2021) Caseous lymphadenitis outbreak in a small ruminant herd. Open Veterinary Journal, 11 (4), 530-534. doi:10.5455/OVJ.2021.v11.i4.2