Medicine:Viral disease
Viral disease | |
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Other names | Viral infection |
Transmission electron micrograph of Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virions | |
Specialty | Infectious disease |
A viral disease (or viral infection) occurs when an organism's body is invaded by pathogenic viruses, and infectious virus particles (virions) attach to and enter susceptible cells.[1]
Examples are the common cold, gastroenteritis and pneumonia.[2]
Structural characteristics
Basic 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-stranded DNA families: three are non-enveloped (Adenoviridae, Papillomaviridae and Polyomaviridae) and two are enveloped (Herpesviridae and Poxviridae). All of the non-enveloped families have icosahedral capsids.
- Partly double-stranded DNA viruses: Hepadnaviridae. These viruses are enveloped.
- One family of single-stranded DNA viruses infects humans: Parvoviridae. These viruses are non-enveloped.
- Positive single-stranded RNA families: three non-enveloped (Astroviridae, Caliciviridae and Picornaviridae) and four enveloped (Coronaviridae, Flaviviridae, Retroviridae and Togaviridae). All the non-enveloped families have icosahedral nucleocapsids.
- Negative single-stranded RNA families: Arenaviridae, Bunyaviridae, Filoviridae, Orthomyxoviridae, ParamyxoviridaeParamyxoviridae and Rhabdoviridae. All are enveloped with helical nucleocapsids.
- Double-stranded RNA genome: Reoviridae.
- The Hepatitis D virus has 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 family Anelloviridae and the genus Dependovirus. Both of these taxa are non-enveloped single-stranded DNA viruses.
Pragmatic rules
Human-infecting virus families offer rules that may assist physicians and medical microbiologists/virologists.[citation needed]
As a general rule, DNA viruses replicate within the cell nucleus while RNA viruses replicate within the cytoplasm. 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, and Reoviridae (acronym BOAR). All are RNA viruses.
- Viruses transmitted almost exclusively by arthropods: Bunyavirus, Flavivirus, and Togavirus. Some Reoviruses are transmitted from arthropod vectors. All are RNA viruses.[3]
- One family of enveloped viruses causes gastroenteritis (Coronaviridae). All other viruses associated with gastroenteritis are non-enveloped.
Baltimore group
This 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
The clinical characteristics of viruses may differ substantially among species within the same family:
Type | Family | Transmission | Diseases | Treatment | Prevention |
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Adenovirus | Adenoviridae |
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None[4] |
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Coxsackievirus | Picornaviridae |
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None[4] |
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Cytomegalovirus | Herpesviridae |
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Epstein–Barr virus | Herpesviridae |
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None[4] |
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Hepatitis A virus | Picornaviridae | Immunoglobulin (post-exposure prophylaxis)[4] |
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Hepatitis B virus | Hepadnaviridae |
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|
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Hepatitis C virus | Flaviviridae |
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Herpes simplex virus, type 1 | Herpesviridae |
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Herpes simplex virus, type 2 | Herpesviridae | ||||
HIV | Retroviridae |
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HAART,[4] such as protease inhibitors[35] and reverse-transcriptase inhibitors[35] |
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Human coronavirus 229E (HCoV-229E) | Coronaviridae |
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Human coronavirus NL63 (HCoV-NL63) | Coronaviridae |
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Human coronavirus OC43 (HCoV-OC43) | Coronaviridae | ||||
Human coronavirus HKU1 (HCoV-HKU1) | Coronaviridae | ||||
Human herpesvirus, type 8 | Herpesviridae |
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many in evaluation-stage[4] |
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Human papillomavirus | Papillomaviridae |
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|
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Influenza virus | Orthomyxoviridae |
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Measles virus | Paramyxoviridae | None[4] |
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Middle East respiratory syndrome-related coronavirus (MERS-CoV) | Coronaviridae |
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Mumps virus | Paramyxoviridae | None[4] |
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Parainfluenza virus | Paramyxoviridae | None[4] |
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Poliovirus | Picornaviridae |
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None[4] |
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Rabies virus | Rhabdoviridae | Post-exposure prophylaxis[4] |
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Respiratory syncytial virus | Pneumoviridae | (ribavirin)[4] |
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Rubella virus | Togaviridae | None[4] |
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Severe acute respiratory syndrome coronavirus (SARS-CoV) | Coronaviridae |
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Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) | Coronaviridae |
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Varicella-zoster virus | Herpesviridae |
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Varicella:
Zoster:
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Varicella:
Zoster:
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See also
- List of latent human viral infections
- Pathogenic bacteria
References
- ↑ Taylor, M.P.; Kobiler, O.; Enquist, L. W. (2012). "Alphaherpesvirus axon-to-cell spread involves limited virion transmission". Proceedings of the National Academy of Sciences (PNAS) 106 (42): 17046–17051. doi:10.1073/pnas.1212926109. PMID 23027939. Bibcode: 2012PNAS..10917046T.
- ↑ see below in this article
- ↑ Hunt, M.. "Arboviruses". University of South Carolina School of Medicine. http://pathmicro.med.sc.edu/mhunt/arbo.htm.
- ↑ 4.000 4.001 4.002 4.003 4.004 4.005 4.006 4.007 4.008 4.009 4.010 4.011 4.012 4.013 4.014 4.015 4.016 4.017 4.018 4.019 4.020 4.021 4.022 4.023 4.024 4.025 4.026 4.027 4.028 4.029 4.030 4.031 4.032 4.033 4.034 4.035 4.036 4.037 4.038 4.039 4.040 4.041 4.042 4.043 4.044 4.045 4.046 4.047 4.048 4.049 4.050 4.051 4.052 4.053 4.054 4.055 4.056 4.057 4.058 4.059 4.060 4.061 4.062 4.063 4.064 4.065 4.066 4.067 4.068 4.069 4.070 4.071 4.072 4.073 4.074 4.075 4.076 4.077 4.078 4.079 4.080 4.081 4.082 4.083 4.084 4.085 4.086 4.087 4.088 4.089 4.090 4.091 4.092 4.093 4.094 4.095 4.096 4.097 4.098 4.099 4.100 4.101 4.102 4.103 4.104 4.105 4.106 4.107 4.108 4.109 4.110 4.111 4.112 4.113 4.114 4.115 4.116 4.117 4.118 4.119 4.120 4.121 4.122 4.123 4.124 4.125 4.126 4.127 4.128 4.129 4.130 4.131 4.132 4.133 4.134 4.135 4.136 4.137 4.138 4.139 4.140 4.141 4.142 4.143 4.144 4.145 4.146 4.147 4.148 4.149 4.150 4.151 4.152 4.153 4.154 4.155 4.156 4.157 4.158 4.159 4.160 4.161 4.162 4.163 4.164 4.165 4.166 4.167 4.168 4.169 4.170 4.171 4.172 4.173 4.174 4.175 4.176 4.177 4.178 4.179 4.180 4.181 4.182 4.183 4.184 4.185 4.186 4.187 4.188 4.189 4.190 Fisher, Bruce; Harvey, Richard P.; Champe, Pamela C. (2007). Lippincott's Illustrated Reviews: Microbiology. Lippincott's Illustrated Reviews Series. Hagerstown MD: Lippincott Williams & Wilkins. pp. 354–366. ISBN 978-0-7817-8215-9. http://med-mu.com/wp-content/uploads/2018/06/lippincotts_microbiology.pdf. Retrieved 7 September 2020.
- ↑ 5.00 5.01 5.02 5.03 5.04 5.05 5.06 5.07 5.08 5.09 5.10 5.11 5.12 5.13 5.14 5.15 5.16 5.17 5.18 5.19 5.20 5.21 5.22 5.23 5.24 5.25 5.26 5.27 5.28 5.29 5.30 5.31 5.32 5.33 5.34 5.35 5.36 5.37 5.38 Table 1 in: Dimitrov, Dimiter S. (2004). "Virus entry: molecular mechanisms and biomedical applications". Nature Reviews Microbiology 2 (2): 109–22. doi:10.1038/nrmicro817. ISSN 1740-1526. PMID 15043007. PMC 7097642. https://zenodo.org/record/1233550.
- ↑ Adams, MJ; Carstens EB (Jul 2012). "Ratification vote on taxonomic proposals to the International Committee on Taxonomy of Viruses (2012)". Arch. Virol. 157 (7): 1411–22. doi:10.1007/s00705-012-1299-6. PMID 22481600. PMC 7086667. http://eprints.gla.ac.uk/121363/1/121363.pdf.
- ↑ Whitley RJ (1996). Baron S. ed. Herpesviruses. in: Baron's Medical Microbiology (4th ed.). Univ of Texas Medical Branch. ISBN 0-9631172-1-1. https://www.ncbi.nlm.nih.gov/books/bv.fcgi?rid=mmed.chapter.3567.
- ↑ Medical Microbiology (5th ed.). Elsevier Mosby. 2005. ISBN 978-0-323-03303-9.
- ↑ 9.0 9.1 9.2 "Classification of papillomaviruses". Virology 324 (1): 17–27. 2004. doi:10.1016/j.virol.2004.03.033. PMID 15183049.
- ↑ 11.0 11.1 11.2 Page 273 in: Lennette's Laboratory Diagnosis of Viral Infections (Fourth ed.). CRC Press. 2010. ISBN 978-1420084962.
- ↑ "Identification of Host Cell Factors Associated with Astrovirus Replication in Caco-2 Cells". J. Virol. 89 (20): 10359–70. 2015. doi:10.1128/JVI.01225-15. PMID 26246569.
- ↑ Stapleford, Kenneth A.; Miller, David J. (2010). "Role of Cellular Lipids in Positive-Sense RNA Virus Replication Complex Assembly and Function". Viruses 2 (5): 1055–68. doi:10.3390/v2051055. ISSN 1999-4915. PMID 21994671.
- ↑ Cook, S.; Moureau, G.; Harbach, R. E.; Mukwaya, L.; Goodger, K.; Ssenfuka, F.; Gould, E.; Holmes, E. C. et al. (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. ISSN 0022-1317. PMID 19656970.
- ↑ Simon-Loriere, Etienne; Holmes, Edward C. (2011). "Why do RNA viruses recombine?". Nature Reviews Microbiology 9 (8): 617–26. doi:10.1038/nrmicro2614. ISSN 1740-1526. PMID 21725337.
- ↑ "2018.013S.R.Matonaviridae" (in en). https://talk.ictvonline.org/files/ictv_official_taxonomy_updates_since_the_8th_report/m/animal-ssrna-viruses/8087.[|permanent dead link|dead link}}]
- ↑ Tuthill, Tobias J.; Groppelli, Elisabetta; Hogle, James M.; Rowlands, David J. (2010). Picornaviruses. Current Topics in Microbiology and Immunology. 343. pp. 43–89. doi:10.1007/82_2010_37. ISBN 978-3-642-13331-2.
- ↑ "Pneumoviridae ~ ViralZone page". https://viralzone.expasy.org/7877?outline=complete_by_species.
- ↑ "Hand, foot, and mouth disease: Identifying and managing an acute viral syndrome". Cleve Clin J Med 81 (9): 537–43. September 2014. doi:10.3949/ccjm.81a.13132. PMID 25183845. http://www.ccjm.org/content/81/9/537.long.
- ↑ 31.0 31.1 31.2 31.3 31.4 31.5 "Babies Born with CMV (Congenital CMV Infection)". Centers for Disease Control and Prevention. April 13, 2017. https://www.cdc.gov/cmv/congenital-infection.html. This article incorporates public domain material from websites or documents of the Centers for Disease Control and Prevention.
External links
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Original source: https://en.wikipedia.org/wiki/Viral disease.
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