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72 Cards in this Set
- Front
- Back
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Parvoviridae genome type
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ssDNA
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Papillomaviridae genome type
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dsDNA as episome
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Adenoviridae genome type
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dsDNA
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Poxviridae genome type
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dsDNA
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Herpesviridae genome type
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dsDNA as episome or provirus
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Asfarviridae genome type
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dsDNA
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Retroviridae genome type
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ssRNA (+) as episome or provirus
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Rhabdoviridae genome type
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ssRNA (-)
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Orthomyxoviridae genome type
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ssRNA (-)
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Which viruses covered in lecture are non-enveloped?
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Parvo, papilloma, adeno, pox
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Which viruses covered in lecture are enveloped?
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Pox, herpes, asfar, retro, rhabdo, orthomyxo
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Which viruses are considered small in size?
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Parvo, papilloma
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Which viruses are considered medium in size?
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Retro, rhabdo, orthomyxo, adeno
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Which viruses are considered large in size?
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Herpes
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Which viruses are considered extra large in size? Which is the largest?
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Pox, asfar
Poxviridae are the largest viruses |
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What is the capsid shape of parvo virus?
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icosahedral
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What is the capsid shape of papilloma virus?
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icosahedral
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What is the capsid shape of adeno virus?
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icosahedral
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What is the capsid shape of pox virus?
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complex and non-symmetrical (brick or ovoid shape)
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What is the capsid shape of herpes virus?
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icosahedral (pleiomorphic)
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What is the capsid shape of asfar virus?
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icosahdral (spherical)
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What is the capsid shape of retro virus?
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spherical to rod shaped--helical
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What is the capsid shape of rhabdo virus?
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helical (bullet shape)
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What is the capsid shape of orthomyxo virus?
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helical (spherical or filamentous shape)
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How does parvo virus gain entry into a cell?
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receptor-mediated endocytosis
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How does papilloma virus gain entry into a cell?
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receptor-mediated endocytosis
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How does adenovirus gain entry into a cell?
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fiber-cell receptor attachment (VAP) and endocytosis
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How does pox virus gain entry into a cell?
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fusion or receptor-mediated endocytosis
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How does herpes virus gain entry into a cell?
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fusion or receptor-mediated endocytosis
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How does asfar virus gain entry into a cell?
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receptor-mediated endocytosis
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How does retro virus gain entry into a cell?
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fusion, then receptor-mediated endocytosis
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How does rhabdo virus gain entry into a cell?
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fusion or receptor-mediated endocytosis
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How does orthomyxo virus gain entry into a cell?
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receptor-mediated endocytosis via hemagglutinin and neuraminidase
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What is the replication site for parvo virus?
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nucleus
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What is the repilcation site for papilloma virus?
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nucleus
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What is the replication site for adenovirus?
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nucleus
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What is the replication site for pox virus?
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cytoplasm--entirely independent from the host cell
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What is the replication site for herpes virus?
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nucleus
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What is the replication site for asfar virus?
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cytoplasm
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What is the replication site for retro virus?
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cytoplasm or nucleus (via reverse transcriptase)
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What is the replication site of rhabdo virus?
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cytoplasm (has own transcriptase)
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What is the replication site of orthomyxovirus during the eclipse and maturation phases?
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nucleus (eclipse)
cytoplasm (maturation) |
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Which viruses are released by cytolysis?
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parvo, papilloma, adeno, pox, herpes, rhabdo
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Which viruses are released by budding (and from where)?
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Pox (from golgi), Asfar (from PM), retro (from PM), rhabdo (from PM), orthomyxo (from PM)
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Which viruses are released by exocytosis?
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Pox, herpes
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What is the cell tropism of parvo virus?
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high mitotic rate cells like GIT and hematopoietic system
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What is the cell tropism of papilloma virus?
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integument, mm (digestive, urogenital)
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What is the cell tropism of adeno virus?
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epithelial cells (especially GIT and respiratory)
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What is the cell tropism of pox virus?
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epithelial cells (permissive), macrophages (semi-permissive)
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What is the cell tropism of herpes virus?
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varies with disease; alpha--sensory nerve ganglia; beta and gamma--lymphoid tissue
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What is the cell tropism of asfar virus?
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lymphoreticular tissue, especially macrophages
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What is the cell tropism of retro virus?
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WBCs: macrophages, B and T stem cells, lymphocytes
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What is the cell tropism of rhabdo virus?
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depends on disease; epithelium only (VSV); neurons and secretory epithelium (rabies)
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What is the cell tropism of orthomyxo virus?
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respiratory (birds and mammals)
GIT (birds only) |
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What is the incubation period of parvo virus?
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short: 2-10 days
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What is the incubation period of papilloma virus?
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short in permissive cells
long in semi- or non-permissive cells |
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What is the incubation period of adeno virus?
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long: weeks
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What is the incubation period of pox virus?
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short: less than 7 days (shorter than papilloma)
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What is the incubation period of herpes virus?
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depends on disease: alpha--short; beta--long; gamma--long
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What is the incubation period of asfar virus?
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short: 5-15 days
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What is the incubation period of retro virus?
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very long: months to years
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What is the incubation period of rhabdo virus?
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long in neurons: 14-90 days
short in epithelium: 1-5 days |
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What is the incubation period of orthomyxovirus?
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very short: hours (virulent avian strains) to a few days
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What are the mechanisms of transmission of parvo virus?
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hortz: oral-fecal, fomites
vert: transplacental |
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What are the mechanisms of transmission of papilloma virus?
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hortz: direct contact with skin and/or mm
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What are the mechanisms of transmission of adeno virus?
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hortz: oral-fecal, respiratory, urine
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What are the mechanisms of transmission of pox virus?
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hortz: direct contact with skin, respiratory, mechanical vectors
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What are the mechanisms of transmission of herpes virus?
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hortz: direct contact, lactogenic, blood
vert: transplacental |
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What are the mechanisms of transmission of asfar virus?
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hortz: oral-fecal, bite from soft tick (Ornithodoros), respiratory, infected pork
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What are the mechanisms of transmission of retro virus?
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hortz: immune response initiated
vert: immune response initiated Requires prolonged contact, so vertical transmission is favored |
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What are the mechanisms of transmission of rhabdo virus?
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hortz: skin or mm lesion
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What are the mechanisms of transmission of orthomyxovirus?
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hortz: respiratory aerosols, oral-fecal (birds)
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