title: [The characteristics of the pathogenic properties of new strains of viruses of the California encephalitis antigenic complex isolated in Arkhangelsk Province].
abstract: Neurotropic properties of Leiv 12724 Ax and Leiv 13004 Ax strains were demonstrated by inoculation of green monkeys, Syrian hamsters and white mice using different routes. The strain Leiv 13004 Ax showed more marked pathogenicity for monkeys and rodents producing lesions in all parts of the brain: temporal, frontal, occipital, cerebellar, medulla oblongata and spinal cord where productive vasculitis, perivascular infiltrations, hemorrhages, and dystrophy of nerve cells were observed. In hamsters, the strains Leiv 13004 Ax and Leiv 12724 Ax inoculated subcutaneously produced latent infection with long-term virus carrier state.
authors.forename: I I
authors.initials: II
authors.lastname: Terskikh
authors.forename: L N
authors.initials: LN
authors.lastname: Abramova
authors.forename: S D
authors.initials: SD
authors.lastname: L'vov
authors.forename: V L
authors.initials: VL
authors.lastname: Gromashevskiĭ
authors.forename: T M
authors.initials: TM
authors.lastname: Skvortsova
authors.forename: V D
authors.initials: VD
authors.lastname: Akhnazarova
mesh_terms: D000818:Animals; D002522:Chlorocebus aethiops; D006224:Cricetinae; D002141:Encephalitis Virus, California / Q000302:isolation & purification / Q000472:pathogenicity*; D004670:Encephalitis, California / Q000209:etiology / Q000382:microbiology / Q000473:pathology; D008647:Mesocricetus; D051379:Mice; D012426:Russia; D013997:Time Factors; D014766:Viremia / Q000209:etiology / Q000382:microbiology / Q000473:pathology
vernacular_title: Kharakteristika patogennykh svoĭstv novykh shtammov virusov antigennogo kompleksa kaliforniĭskogo éntsefalita, izolirovannykh v Arkhangel'skoĭ oblasti.