Outbreak of Equine Trypanosomiasis (Surra) with High Mortality in Horses in Chitwan, Nepal


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Authors

  • Jibachha Sah Jibachha Veterinary Hospital & Research Center, Bharatpur-4, Chitwan, Nepal
  • Dr S. K. Prabhakar Veterinary College, Nepal
  • Dr S. K. Jyoti Veterinary College, Nepal

https://doi.org/10.62757/n88frr71

Keywords:

Surra; Horse; Trypanosoma evansi

Abstract

An outbreak of equine trypanosomiasis (Surra) occurred in a horse riding facility in Chitwan, Nepal. Eight of fifteen horses died within 1–1.5 months before laboratory diagnosis. Affected horses showed fever, anemia, emaciation and icterus. Blood smear examination confirmed Trypanosoma spp. Early diagnosis and herd-level trypanocidal therapy are essential to prevent severe losses.

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Author Biographies

  • Jibachha Sah, Jibachha Veterinary Hospital & Research Center, Bharatpur-4, Chitwan, Nepal

    Veterinary Assistant Surgeon

  • Dr S. K. Prabhakar, Veterinary College, Nepal

     Professor

  • Dr S. K. Jyoti, Veterinary College, Nepal

    Professor

References

Desquesnes, M., Holzmuller, P., Lai, D.H., Dargantes, A., Lun, Z.R. and Jittapalapong, S. (2013), Trypanosoma evansi and surra: epidemiology and control, Parasites & Vectors, 6:185.

OIE (2021), Trypanosomosis (Surra), OIE Terrestrial Manual, World Organisation for Animal Health, Paris.

Radostits, O.M., Gay, C.C., Hinchcliff, K.W. and Constable, P.D. (2007), Veterinary Medicine: A Textbook of the Diseases of Cattle, Horses, Sheep, Pigs and Goats, 10th ed., Saunders Elsevier, London.

Soulsby, E.J.L. (1982), Helminths, Arthropods and Protozoa of Domesticated Animals, 7th ed., Baillière Tindall, London.

Singh, B. and Gupta, M.P. (2002), Clinical management of equine trypanosomiasis, The Indian Veterinary Journal, 79:1105–1108.

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Submitted

2026-08-23

Published

2026-08-23

How to Cite

Jibachha Sah, S. K. Prabhakar, & S. K. Jyoti. (2026). Outbreak of Equine Trypanosomiasis (Surra) with High Mortality in Horses in Chitwan, Nepal. The Indian Veterinary Journal, 102(08). https://doi.org/10.62757/n88frr71