Year: 1986
Type: article
Abstract: Summary: Infection of horses by equine herpesvirus I (EHV-1) may produce equine rhinopneumonitis, abortion or neurological disease. Two antigenically related subtypes of the virus are distributed world-wide. Apparent differences in characteristi cs of virulence of the subtype viruses are evident by the associa tion of subtype 1 (S-l) with most cases of abortion and neurological disease and the association of S-2 mainly with respiratory disease in young horses. The viruses survive as a result of the production of latent infections and their ability to productively reinfect immunologically experienced horses as well as immunological ly naive new additions to herds. Experiences with the Australian and Japanese population of purebred hor ses suggest that severe economic losses may occur as the result of introduction of the S-l virus into populations in which the S-2 virus has been the predomi nant or sole existing strain. Because no practically applicable method exists for identification of latently infected animals, there is no reliable basis upon which efficient qua rantine regulations may be promulgated. Minimum quarantine of horses to be added to herds should be enforced for no less than 21 days on the destination premises. Pregnant broodmares should be sequestered from other pregnant females until they have foaled. The most efficient prophylactic measures for control of abortigenic disease include institution of management practices which produce the least possible stress along with the use of a planned pro gramme of vaccination.
DOI: 10.20506/rst.5.4.273
Authors: J.T. BRYANS, G.P. ALLEN
Institution: University of Kentucky
Language: French
Subfield: Infectious Diseases
Field: Medicine
Domain: Health Sciences
Open Access status: bronze
OpenAlex ID: W2107917221