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  • Title: A new field strain of equine abortion virus (equine herpesvirus-1) among Kentucky horses.
    Author: Allen GP, Yeargan MR, Turtinen LW, Bryans JT.
    Journal: Am J Vet Res; 1985 Jan; 46(1):138-40. PubMed ID: 2982294.
    Abstract:
    From restriction endonuclease characterization of the DNA of 317 isolates of equine abortion virus (equine herpesvirus-1; EHV-1) from 176 epizootically unrelated outbreaks of equine virus abortion occurring over 24 years in Kentucky, an epizootic pattern and variation of the virus have emerged. Two electropherotypes of EHV-1 (1P and 1B) accounted for greater than 90% of the nonvaccine-related abortion isolates examined. From 1960 to 1981, EHV-1 1P was the predominant isolate circulating in the central Kentucky area and the cause of greater than 80% of EHV-1-related abortions. In 1981, the occurrence of isolate 1B-related abortions began to increase and since 1982, 1B has become the most frequently recovered isolate of EHV-1 from aborted fetuses.
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