Aviral disease(orviral infection) occurs when an organism's body is invaded bypathogenicviruses,andinfectiousvirus particles (virions) attach to and enter susceptible cells.[1]
Viral disease | |
---|---|
Other names | Viral infection |
Types of viral diseases | |
Specialty | Infectious disease |
Causes | Virus |
Medication | Antiviral drugs |
Examples are thecommon cold,gastroenteritisandpneumonia.[2]
Structural characteristics
editBasic structural characteristics, such as genome type, virion shape and replication site, generally share the same features among virus species within the same family.[citation needed]
- Double-strandedDNAfamilies: three are non-enveloped (Adenoviridae,PapillomaviridaeandPolyomaviridae) and two are enveloped (HerpesviridaeandPoxviridae). All of the non-enveloped families have icosahedralcapsids.
- Partlydouble-stranded DNA viruses:Hepadnaviridae.These viruses are enveloped.
- One family ofsingle-stranded DNA virusesinfects humans:Parvoviridae.These viruses are non-enveloped.
- Positive single-strandedRNAfamilies: three non-enveloped (Astroviridae,CaliciviridaeandPicornaviridae) and four enveloped (Coronaviridae,Flaviviridae,RetroviridaeandTogaviridae). All the non-enveloped families have icosahedralnucleocapsids.
- Negative single-stranded RNA families:Arenaviridae,Bunyaviridae,Filoviridae,Orthomyxoviridae,ParamyxoviridaeandRhabdoviridae.All are enveloped with helical nucleocapsids.
- Double-stranded RNA genome:Reoviridae.
- TheHepatitis D virushas not yet been assigned to a family, but is clearly distinct from the other families infecting humans.
- Viruses known to infect humans that have not been associated with disease: the familyAnelloviridaeand the genusDependovirus.Both of these taxa are non-enveloped single-stranded DNA viruses.
Pragmatic rules
editHuman-infecting virus families offer rules that may assist physicians and medicalmicrobiologists/virologists.[citation needed]
As a general rule, DNA viruses replicate within thecell nucleuswhile RNA viruses replicate within thecytoplasm.Exceptions are known to this rule: poxviruses replicate within the cytoplasm and orthomyxoviruses and hepatitis D virus (RNA viruses) replicate within the nucleus.[citation needed]
- Segmented genomes:Bunyaviridae,Orthomyxoviridae,Arenaviridae,andReoviridae(acronym BOAR). All are RNA viruses.
- Viruses transmitted almost exclusively byarthropods:Bunyavirus,Flavivirus,andTogavirus.SomeReovirusesare transmitted from arthropod vectors. All are RNA viruses.[3]
- One family of enveloped viruses causesgastroenteritis(Coronaviridae). All other viruses associated with gastroenteritis are non-enveloped.
Baltimore group
editThis group of analysts defined multiple categories of virus. Groups:[citation needed]
- I -dsDNA
- II -ssDNA
- III -dsRNA
- IV -positive-sense ssRNA
- V -negative-sense ssRNA
- VI -ssRNA-RT
- VII -dsDNA-RT
Clinical characteristics
editThe clinical characteristics of viruses may differ substantially among species within the same family:
See also
editReferences
edit- ^Taylor M, Kobiler O, Enquist LW (2012)."Alphaherpesvirus axon-to-cell spread involves limited virion transmission".Proceedings of the National Academy of Sciences.106(42). PNAS: 17046–17051.Bibcode:2012PNAS..10917046T.doi:10.1073/pnas.1212926109.PMC3479527.PMID23027939.
- ^see below in this article
- ^Hunt M."Arboviruses".University of South Carolina School of Medicine.
- ^abcdefghijklmnopqrstuvwxyzaaabacadaeafagahaiajakalamanaoapaqarasatauavawaxayazbabbbcbdbebfbgbhbibjbkblbmbnbobpbqbrbsbtbubvbwbxbybzcacbcccdcecfcgchcicjckclcmcncocpcqcrcsctcucvcwcxcyczdadbdcdddedfdgdhdidjdkdldmdndodpdqdrdsdtdudvdwdxdydzeaebecedeeefegeheiejekelemeneoepeqereseteuevewexeyezfafbfcfdfefffgfhfifjfkflfmfnfofpfqfrfsftfufvfwfxfyfzgagbgcgdgegfggghgiFisher B, Harvey RP, Champe PC (2007).Lippincott's Illustrated Reviews: Microbiology(PDF).Lippincott's Illustrated Reviews Series. Hagerstown MD: Lippincott Williams & Wilkins. pp. 354–366.ISBN978-0-7817-8215-9.Archived fromthe original(PDF)on 22 October 2020.Retrieved7 September2020.
- ^abcdefghijklmnopqrstuvwxyzaaabacadaeafagahaiajakalamTable 1 in:Dimitrov DS (2004)."Virus entry: molecular mechanisms and biomedical applications".Nature Reviews Microbiology.2(2): 109–22.doi:10.1038/nrmicro817.ISSN1740-1526.PMC7097642.PMID15043007.
- ^Adams MJ, Carstens EB (Jul 2012)."Ratification vote on taxonomic proposals to the International Committee on Taxonomy of Viruses (2012)"(PDF).Arch. Virol.157(7): 1411–22.doi:10.1007/s00705-012-1299-6.PMC7086667.PMID22481600.
- ^Whitley RJ (1996). Baron S, et al. (eds.).Herpesviruses.in:Baron's Medical Microbiology(4th ed.). Univ of Texas Medical Branch.ISBN0-9631172-1-1.
- ^Murray PR, Rosenthal KS, Pfaller MA (2005).Medical Microbiology(5th ed.). Elsevier Mosby.ISBN978-0-323-03303-9.
- ^abcde Villiers EM, Fauquet C, Broker TR, Bernard HU, zur Hausen H (2004)."Classification of papillomaviruses".Virology.324(1): 17–27.doi:10.1016/j.virol.2004.03.033.PMID15183049.
- ^abcPage 273in:Lennette's Laboratory Diagnosis of Viral Infections(Fourth ed.). CRC Press. 2010.ISBN978-1420084962.
- ^Murillo A, Vera-Estrella R, Barkla BJ, Méndez E, Arias CF (2015)."Identification of Host Cell Factors Associated with Astrovirus Replication in Caco-2 Cells".J. Virol.89(20): 10359–70.doi:10.1128/JVI.01225-15.PMC4580174.PMID26246569.
- ^Stapleford KA, Miller DJ (2010)."Role of Cellular Lipids in Positive-Sense RNA Virus Replication Complex Assembly and Function".Viruses.2(5): 1055–68.doi:10.3390/v2051055.ISSN1999-4915.PMC3187604.PMID21994671.
- ^Cook S, Moureau G, Harbach RE, Mukwaya L, Goodger K, Ssenfuka F, Gould E, Holmes EC, de Lamballerie X (2009)."Isolation of a novel species of flavivirus and a new strain of Culex flavivirus (Flaviviridae) from a natural mosquito population in Uganda".Journal of General Virology.90(11): 2669–78.doi:10.1099/vir.0.014183-0.ISSN0022-1317.PMC2885038.PMID19656970.
- ^Simon-Loriere E, Holmes EC (2011)."Why do RNA viruses recombine?".Nature Reviews Microbiology.9(8): 617–26.doi:10.1038/nrmicro2614.ISSN1740-1526.PMC3324781.PMID21725337.
- ^"2018.013S.R.Matonaviridae".International Committee on Taxonomy of Viruses (ICTV).Retrieved2020-05-28.[dead link ]
- ^Tuthill TJ, Groppelli E, Hogle JM, Rowlands DJ (2010).Picornaviruses.Current Topics in Microbiology and Immunology. Vol. 343. pp. 43–89.doi:10.1007/82_2010_37.ISBN978-3-642-13331-2.ISSN0070-217X.PMC3018333.PMID20397067.
- ^"Pneumoviridae ~ ViralZone page".viralzone.expasy.org.Retrieved2020-08-17.
- ^Repass GL, Palmer WC, Stancampiano FF (September 2014)."Hand, foot, and mouth disease: Identifying and managing an acute viral syndrome".Cleve Clin J Med.81(9): 537–43.doi:10.3949/ccjm.81a.13132.PMID25183845.
- ^abcdef"Babies Born with CMV (Congenital CMV Infection)".Centers for Disease Control and Prevention. April 13, 2017.RetrievedJune 17,2017.This article incorporatespublic domain materialfrom websites or documents of theCenters for Disease Control and Prevention.