[Influence of host-effect on strain variability of tick-borne encephalitis virus]. 1996

V V Iakimenko, and D A Drokin, and O B Kalmin, and I I Bogdanov, and D I Ivanov

The organism of arthropods and warm-blooded vertebrates as a habitat of a virus determines the population genetic structure of tick-borne encephalitis (TBE) virus strains. The pattern of hybridization by variable zones of TBE genomes gradually changes in the course of intracerebral passages of the virus in newborn white mice. During intracelomal passages in Ixodidae hybridization alters as early as during the first passage, both for variable and (in individual cases) conservative zones. Ixodid ticks should be regarded as a mechanism maintaining the heterogeneity of virus communities (strains and populations). Vertebrates and communities of dugout arthropods appear to be the mechanism reducing the effect of ecologic isolation of TBE strains.

UI MeSH Term Description Entries
D004669 Encephalitis Viruses, Tick-Borne A subgroup of the genus FLAVIVIRUS that causes encephalitis and hemorrhagic fevers and is found in eastern and western Europe and the former Soviet Union. It is transmitted by TICKS and there is an associated milk-borne transmission from viremic cattle, goats, and sheep. Hemorrhagic Fever Virus, Omsk,Kyasanur Forest disease virus,Langat virus,Louping ill virus,Omsk hemorrhagic fever virus,Powassan virus,Al-Khurma Hemorrhagic Fever Virus,Al-Khurma virus,Al-Khurma virus (ALKV),Alkhurma Hemorrhagic Fever Virus,Alkhurma virus,Alkhurma virus (ALKV),Encephalitis Virus, Tick-Borne,Tick-Borne Encephalitis Virus,Tick-Borne Encephalitis Viruses,Viruses, Tick-Borne Encephalitis,Al Khurma Hemorrhagic Fever Virus,Al Khurma virus,Al Khurma virus (ALKV),Encephalitis Virus, Tick Borne,Encephalitis Viruses, Tick Borne,Louping ill viruses,Tick Borne Encephalitis Virus,Tick Borne Encephalitis Viruses
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001179 Arthropod Vectors Arthropods, other than insects and arachnids, which transmit infective organisms from one host to another or from an inanimate reservoir to an animate host. Arthropod Vector,Vector, Arthropod,Vectors, Arthropod
D013045 Species Specificity The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species. Species Specificities,Specificities, Species,Specificity, Species
D013987 Ticks Blood-sucking acarid parasites of the order Ixodida comprising two families: the softbacked ticks (ARGASIDAE) and hardbacked ticks (IXODIDAE). Ticks are larger than their relatives, the MITES. They penetrate the skin of their host by means of highly specialized, hooked mouth parts and feed on its blood. Ticks attack all groups of terrestrial vertebrates. In humans they are responsible for many TICK-BORNE DISEASES, including the transmission of ROCKY MOUNTAIN SPOTTED FEVER; TULAREMIA; BABESIOSIS; AFRICAN SWINE FEVER; and RELAPSING FEVER. (From Barnes, Invertebrate Zoology, 5th ed, pp543-44) Ixodida,Ixodidas,Tick
D016679 Genome, Viral The complete genetic complement contained in a DNA or RNA molecule in a virus. Viral Genome,Genomes, Viral,Viral Genomes
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus
D018740 Genetic Heterogeneity The presence of apparently similar characters for which the genetic evidence indicates that different genes or different genetic mechanisms are involved in different pedigrees. In clinical settings genetic heterogeneity refers to the presence of a variety of genetic defects which cause the same disease, often due to mutations at different loci on the same gene, a finding common to many human diseases including ALZHEIMER DISEASE; CYSTIC FIBROSIS; LIPOPROTEIN LIPASE DEFICIENCY, FAMILIAL; and POLYCYSTIC KIDNEY DISEASES. (Rieger, et al., Glossary of Genetics: Classical and Molecular, 5th ed; Segen, Dictionary of Modern Medicine, 1992) Heterogeneity, Genetic,Genetic Heterogeneities,Heterogeneities, Genetic

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