Correlation between the pathogenicity of field strains of Aujeszky's disease virus and their ability to cause cell fusion -- syncytia formation -- in cell cultures.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000382:microbiology*; D002459:Cell Fusion; D011558:Herpesvirus 1, Suid / Q000302:isolation & purification* / Q000472:pathogenicity; D011557:Pseudorabies / Q000382:microbiology*; D013552:Swine; D013553:Swine Diseases / Q000382:microbiology*