Case Report

Molluscum contagiosum in three horses

Lucia Lange, Sally Marett, Charlotte Maree, Truuske Gerdes
Journal of the South African Veterinary Association | Vol 62, No 2 | a1595 | DOI: https://doi.org/10.4102/jsava.v62i2.1595 | © 2020 Lucia Lange, Sally Marett, Charlotte Maree, Truuske Gerdes | This work is licensed under CC Attribution 4.0
Submitted: 31 August 2017 | Published: 30 June 1991

About the author(s)

Lucia Lange, Private practitioner, South Africa
Sally Marett, Private practitioner, Zambia
Charlotte Maree, Department of Pathology, University of Pretoria, South Africa
Truuske Gerdes, Section Virology, Veterinary Research Institute, South Africa

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Abstract

Suspected molluscum contagiosum was diagnosed in 3 horses in the Chingola district of Zambia. The horses were found to be suffering from a slow progressive skin disease with lesions on the chest, shoulders, inner and lateral aspects of the fore- and hindlimbs, the face, fetlocks, pasterns and on the lateral surfaces of the body, The lesions varied from 4 to 20mm in diameter, were hairless but covered by soft keratin projections which, when removed, left a raw elevated base tightly adherent to the epidermis. These lesions bled profusely when the animals were groomed. Older lesions were well circumscribed, raised above the surface, devoid of hair and after removal of grey-white keratin flakes, had a depigmented waxy appearance. Microscopically cyto-plasmic inclusions containing many pox virions were found. Attempts at culturing the virus were unsuccessful.

Keywords

Molluscum contagiosum; equine; horse; pox virus

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