• mammalian viruses) and Avastrovirus (avian viruses) ( 1 ). (cdc.gov)
  • The recombinant viruses obtained were unstable, although the foreign genes were expressed efficiently in the mammalian cells infected with the viruses. (lookformedical.com)
  • However, the monophyly of avian clades of CaPV and FPV was supported by phylogenetic analysis. (lookformedical.com)
  • Virus Incompleti 0 domande Viruses which lack a complete genome so that they cannot completely replicate or cannot form a protein coat. (lookformedical.com)
  • Provirus 0 domande Duplex DNA sequences in eukaryotic chromosomes, corresponding to the genome of a virus, that are transmitted from one cell generation to the next without causing lysis of the host. (lookformedical.com)
  • Virus Riassortanti 0 domande Viruses containing two or more pieces of nucleic acid (segmented genome) from different parents. (lookformedical.com)
  • We mapped the canarypox virus (CaPV) thymidine kinase (TK) gene within a 5.8-kbp XbaI fragment of the genome by Southern blotting using the fowlpox virus (FPV) TK gene as a probe. (lookformedical.com)
  • For definitive diagnosis the virus or viral antigens must be demonstrated in the affected tissue(s). (wikipedia.org)
  • They are single-stranded positive-sense RNA viruses with the ClustalW multiple alignment program (EMBL, Heidel- a characteristic 5- or 6-pointed star, which has an electron- berg, Germany). (cdc.gov)
  • A canarypox vaccine expressing multiple human immunodeficiency virus type 1 genes given alone or with rgp120 elicits broad and durable CD8+ cytotoxic T lymphocyte responses in seronegative volunteers. (lookformedical.com)
  • Virus Helper 0 domande Viruses which enable defective viruses to replicate or to form a protein coat by complementing the missing gene function of the defective (satellite) virus. (lookformedical.com)
  • Batteriofagi 0 domande Viruses whose hosts are bacterial cells. (lookformedical.com)
  • Such viruses are produced in cells coinfected with different strains of a given virus. (lookformedical.com)
  • Using rFWPV containing lacZ under the control of a vaccinia virus (VV) early/late promoter (p7.5K) and a 10 plaque-forming units per cell multiplicity of infection, >80% of cells expressed the lacZ marker gene. (lookformedical.com)
  • Induction of CD8+ cytotoxic T cells is considered one of the important correlates for the protective efficacy of candidate human immunodeficiency virus type 1 (HIV-1) vaccines. (lookformedical.com)
  • We then inserted the genes encoding lacZ, luciferase (luci), and envelope of human T-lymphotropic virus type 1 (HTLV-1 env) into the TK gene of CaPV to evaluate its suitability as an expression vector. (lookformedical.com)
  • Human astroviruses (HAtVs) are positive-sense single-stranded RNA viruses that were discovered in 1975. (nih.gov)
  • Astroviruses infecting other species, particularly mammalian and avian, were identified and classified into the genera Mamastrovirus and Avastrovirus. (nih.gov)
  • Cellular receptors and targeted cells for these viruses are unknown and, to date, novel astroviruses have not been culturable. (medscape.com)
  • Astrovirus is a type of virus that was first discovered in 1975 using electron microscopes following an outbreak of diarrhea in humans.In addition to humans, astroviruses have now been isolated from numerous mammalian animal species (and are classified as genus Mammoastrovirus) and from avian species such as ducks, chickens, and turkey poults (classified as genus Avastrovirus). (biozek.com)
  • Astroviruses are 28-35 nm diameter, icosahedral viruses that have a characteristic five- or sixpointed star-like surface structure when viewed by electron microscopy. (biozek.com)
  • Avastrovirus 2, also called avian nephritis virus, is an astrovirus which causes 'avian nephritis' in chickens. (wikipedia.org)
  • There is currently no effective treatment for avian nephritis. (wikipedia.org)
  • Avian Nephritis, reviewed and published by WikiVet at Avian Nephritis - WikiVet English, accessed 16/08/2011. (wikipedia.org)
  • hepatitis and nephritis have been observed in avian infections. (medscape.com)
  • A genus of ASTROVIRIDAE infecting avian species and often involving extra-intestinal manifestations. (bvsalud.org)
  • Along with the Picornaviridae and the Caliciviridae, the Astroviridae comprise a third family of nonenveloped viruses whose genome is composed of plus-sense, single-stranded RNA. (biozek.com)
  • They are single-stranded positive-sense RNA viruses with the ClustalW multiple alignment program (EMBL, Heidel- a characteristic 5- or 6-pointed star, which has an electron- berg, Germany). (cdc.gov)
  • 1 Enteric Virus Laboratory, Department of Microbiology and Institute of Nutrition and Food Safety, University of Barcelona, Barcelona, Spain [email protected]. (nih.gov)
  • Virus Degli Insetti 0 domande Viruses infecting insects, the largest family being BACULOVIRIDAE. (lookformedical.com)