title: A new field strain of equine abortion virus (equine herpesvirus-1) among Kentucky horses.
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.
authors.forename: G P
authors.initials: GP
authors.lastname: Allen
authors.forename: M R
authors.initials: MR
authors.lastname: Yeargan
authors.forename: L W
authors.initials: LW
authors.lastname: Turtinen
authors.forename: J T
authors.initials: JT
authors.lastname: Bryans
mesh_terms: D000034:Abortion, Veterinary / Q000453:epidemiology; D000818:Animals; D004262:DNA Restriction Enzymes / Q000378:metabolism; D004279:DNA, Viral / Q000032:analysis; D004196:Disease Outbreaks / Q000662:veterinary*; D005260:Female; D014644:Genetic Variation; D006564:Herpesviridae / Q000235:genetics*; D006566:Herpesviridae Infections / Q000382:microbiology / Q000662:veterinary*; D004861:Herpesvirus 1, Equid / Q000032:analysis / Q000235:genetics*; D006734:Horse Diseases / Q000453:epidemiology / Q000382:microbiology*; D006736:Horses; D007629:Kentucky; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000382:microbiology / Q000662:veterinary*
chemical_list: D004279:DNA, Viral; D004262:DNA Restriction Enzymes