Virus classification - Medicow
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Topic: Virus classification



  
 CDC - Emerging Issues in Virus Taxonomy
Since ICTV study groups (12) are mostly responsible for deciding which virus species should be recognized within individual genera and families, these specialty groups, with their in-depth knowledge of particular areas in virology, have been given the task of establishing which diagnostic properties are most useful for species demarcation.
Although an emerging discipline, virus taxonomy is essential to the working virologist, and we need to achieve universal agreement on the principles so that we can freely communicate without misunderstanding (37).
This new typography has met with some criticism (19,20) and corresponding rebuttals (21,22), but it is now generally applied in most scientific journals and books on virology (23).
http://www.cdc.gov/ncidod/EiD/vol10no1/03-0279.htm   (3978 words)

  
 Bacteriology 100: Animal Viruses
HBV is spread through having sex with an infected person without using a condom, by sharing drugs or needles when shooting drugs, through needle sticks or sharps exposures on the job, and from an infected mother to her baby during birth.
Combination therapy using pegylated interferon and ribaviran is currently the treatment of choice.
Combination therapy can eliminate the virus in 50% of persons infected with HCV genotype 1, and up to 80% of individuals infected with HCV genotypes 2 and 3.
http://www.bact.wisc.edu/bact100/Viruses1.html   (17211 words)

  
 The literature of computer viruses is steeped in biological analogy. Even the choice of the name for these programming ...
Classification does involve an underlying philosophy about the mechanisms and organizational structure of the items and groups being classified.
Even the choice of method to create groups can have significant impact on the results - witness the differences in different mathematical clustering techniques on the same similarity matrix data.
In many ways it parallels the approach used by classical zoological taxonomists, and popular field guides to animals.
http://home.earthlink.net/~colobus/vclassif.htm   (3328 words)

  
 1994 Revised Classification System for Human Immunodeficiency Virus Infection in Children Less Than 13 Years of Age
However, clinicians who determine a child's antiretroviral therapy on the basis of such assays may use them to classify the child as being infected.
Longitudinal study of 94 symptomatic infants with perinatally acquired human immunodeficiency virus infection.
Prognostic significance of immuno- logic changes in 675 infants perinatally exposed to human immunode- ficiency virus.
http://www.cdc.gov/mmwr/preview/mmwrhtml/00032890.htm   (3104 words)

  
 Intenational Code of Virus Clasifications and Nomenclature
Classification of such isolates is not the responsibility of the ICTV but is the responsibility of international specialty groups.
The styles used when virus names are devised differ according to the traditions of the particular fields of virology.
For example, Bimbo virus is a rhabdovirus of vertebrates but is not a member of any of the currently recognised genera in the family Rhabdoviridae.
http://www.ncbi.nlm.nih.gov/ICTVdb/ICTVWeb/rules.html   (2116 words)

  
 Virology - Introduction
The helical nature of this virus is quite clear in negative staining electron micrographs since the virus forms a rigid rod-like structure.
influenza virus, rabies virus), the capsid is more flexible (and longer) and appears in negative stains rather like a telephone cord.
Modified from Volk et al., Essentials of Medical Microbiology.
http://pathmicro.med.sc.edu/mhunt/intro-vir.htm   (2215 words)

  
 Medmicro Chapter 41
Although the current rules for nomenclature do not prohibit the introduction of new sigla, they require that the siglum be meaningful to workers in the field and be recognized by international study groups.
The pathogenesis of the sporadic amyloidoses, however, is still a matter of highly ambitious research.
Viruses were first found to have 532 symmetry by x-ray diffraction studies and subsequently by electron microscopy with negative-staining techniques.
http://gsbs.utmb.edu/microbook/ch041.htm   (3397 words)

  
 Classification of Virus Risk Types Using Kernel-Based Classifiers
Infection by high-risk genital HPVs is associated with the development of anogenital cancers.
Classification of virus risk types is important to understand the mechanisms in infection and to develop novel instruments for medical examination such as DNA chips.
Recently more than 120 have been partly reported.
http://www.iscb.org/ismb2003/posters/jgjoungATbi.snu.ac.kr_457.html   (216 words)

  
 [No title]
However, the coordinator will not be able to keep up with all the latest movements in virus research.
With this numbering system the database is structured such that we do not need to repeat the same information between levels.
The Web accessibility of the virus descriptions at all stages of preparation will also facilitate the reviewing process by the Study Groups of the ICTV.
http://www.ictvdb.rothamsted.ac.uk/ICTVdB/ICTVdB.htm   (2429 words)

  
 VIRUS STRUCTURE
Reasons for Studying Aspects of a Virus Capsid Structure:
One of the following criteria had been used.
In formal usage the name of the taxon should precede the term for the taxonomic unit.
http://web.mala.bc.ca/mhernand/334/chp5virus_structure.htm   (591 words)

  
 Virus Types
HIV-1 and HIV-2 are both considered subspecies of HIV (human immunodeficiency virus).
Virus subspecies are often described by adding numbers to the common name.
Describe a hypothetical virus genome such that it displays five structural characteristics each of which may be shared with some but none of which are shared with all other viruses.
http://www.mansfield.ohio-state.edu/~sabedon/biol3025.htm   (2536 words)

  
 Amazon.co.uk: Virus Taxonomy: Classification and Nomenclature of Viruses. Sixth Report of the International Committee ...
The pictures and electronmicrographs of each virus are very helpful and the text tends to maintain a standard format, which makes the rather tedious subject easier to absorb.
Universal, unambiguous virus taxonomy (naming and categorization) is vital for distinguishing the thousands of viruses which have been isolated from humans, animals, plants, fungi, bacteria, and archae.
The book refers to the taxonomy, however there is a lot of information available on the web which is not refered to.
http://www.amazon.co.uk/exec/obidos/ASIN/3211825940   (1069 words)

  
 LiveScience.com - Huge New Virus Defies Classification
It is so large and complex that researchers had trouble recognizing it as a virus.
Mimivirus is, however, like other viruses in that it is not able to convert energy or replicate on its own.
Mimivirus’ unique nature may hold some key to the evolution of singe-celled organisms three billion years ago.
http://www.livescience.com/animalworld/041111_giant_virus.html   (585 words)

  
 [Classification and virus expression of primary cerebral lymphomas]
The state of the art may have changed since the publication date.
EBV genome was found in 3/3 AIDS cases, but in none of 40 immunocompetent cases, while HHV6 was detected in 2 tumors of immunocompetent patients.
We conclude that (1) the Updated Kiel Classification is not applicable to a majority of PCL, and (2) EBV and HHV6 do not appear to play a major role in the pathogenesis of PCL in immunocompetent subjects.
http://www.aegis.com/aidsline/1993/apr/M9340323.html   (441 words)

  
 Virus Classification
An interactive virus identification key is currently under development at this site: test it and see how the criteria rapidly allow identification.
For example, virus families infecting two kingdoms of organisms are:
- although a number of other criteria - such as disease symptoms, antigenicity, protein profile, host range, etc. - are important in precise identification, consideration of the above three criteria are sufficient in most cases to allow identification of a virus down to familial if not generic level.
http://www.mcb.uct.ac.za/tutorial/classif.htm   (411 words)

  
 Computer Virus Classification
This may be achieved by encrypting of the main body of the virus and making modifications to the decryption routine.
This is due to the fact that any virus like any program may contain errors, which may damage both files and disk sectors (for example, seemingly harmless "DenZuk" virus works rather correctly with 360K diskettes but can destroy information on high- capacity diskettes.
In multitasking operating systems the lifetime of a resident DOS virus can also be limited by the moment of closing of the infected DOS window, the activity of boot viruses in some operating systems is limited to the moment of installation of OS disk drivers.
http://www.avp.ch/avpve/classes/classes.stm   (962 words)

  
 Nucleotide sequence of feline immunodeficiency virus: classification of Japanese isolates into two subtypes which are ...
The state of the art may have changed since the publication date.
Seven isolates of feline immunodeficiency virus (FIV), Shizuoka, Yokohama, Sendai-1, Sendai-2, Fukuoka, Aomori-1, and Aomori-2, were isolated from FIV-seropositive domestic cats in Japan, and their proviral DNAs were amplified by PCR.
Nucleotide sequence of feline immunodeficiency virus: classification of Japanese isolates into two subtypes which are distinct from non-Japanese subtypes.
http://www.aegis.com/aidsline/1995/aug/M9580441.html   (413 words)

  
 Virus Taxonomy - 2005 in genomic order
The taxonomic structure of virus odres, families and genera
The taxonomic structure of virus orders, families and genera are listed in three different ways to facilitate the search for a particular virus family or genus:
Additional access points to virus species lists, descriptions and images on the web:
http://www.ncbi.nlm.nih.gov/ICTVdb/Ictv/fr-fst-g.htm   (196 words)

  
 Classification of Veterinary Viruses
Viruses belonging to a common group have similar properties and one can often infer a great deal about how a virus may replicate, the kind of disease it may produce and how it may spread from what we know about other members of the group.
While it provides a sense of order to the large number of viruses that have been discovered in the last few decades, it has a practical purpose as well.
An exception to this rule are viruses that have been named after a person, eg Epstein-Barr virus, or a place eg.
http://duke.usask.ca/~misra/virology/taxonomy.html   (483 words)

  
 Appendix 2. Newcastle disease virus: classification and important viral proteins
Molecular techniques are now used to indicate the virulence of new isolates of Newcastle disease virus.
Molecular analysis of the Newcastle disease virus genome
This protein fuses the virus envelope to the membrane of the host cell.
http://www.fao.org/DOCREP/005/AC802E/ac802e0o.htm   (361 words)

  
 [No title]
However since the virus is designed to attack all Macintosh emulators on the Atari other than Aladin, one may well question Proficomp's motives.
Moreover, == == we have only a limited access to MacViruses, so we ask for aid.
--------------------- Attributes ------------------------------------ Easy Identification.: --- Type of infection...: - extending affected programs by virus size; - modifying affected program's jump table; - patching operating system calls in RAM; - upon each launch, the programs "last modified" date entry is updated.
http://freaky.staticusers.net/viruses/MacVirusDefinitions.txt   (431 words)

  
 Biol 426
Assume that you can grow the virus in an appropriate cuture medium and that you have unlimited amounts of the virus to work with.
Describe a technique that you would use to identify the nucleic acid content of an unknown virus.
How can this information be used to a) determine how many and what kinds of proteins the virus can synthesize; b) when/under what conditions each protein is synthesized during viral infection?
http://biology.fullerton.edu/courses/biol_426/Web/strucclass.html   (163 words)

  
 The Big Picture Book of Viruses
ICTV Net is an email network of ICTV members that provides the virology community with the opportunity to interact with ICTV, ask questions, and even make proposals...
If you are interested in developing a WWW site for your lab or organization, please feel free to contact me for any needed advice and/or assistance.
f you know of a virus picture that is not listed here, or would like to update the listing of a site, please use our virology site submission form or email me with the address.
http://www.tulane.edu/~dmsander/Big_Virology/BVHomePage.html   (443 words)

  
 CDC: West Nile Virus - Virology: Classification of West Nile Virus
Scanned images are of West Nile virus isolated from brain tissue from a crow found in New York.
Therefore, images of West Nile virus are representative for this group of viruses.
CDC: West Nile Virus - Virology: Classification of West Nile Virus
http://www.cdc.gov/ncidod/dvbid/westnile/virus.htm   (152 words)

  
 Find in a Library: Virus taxonomy : classification and nomenclature of viruses : seventh report of the International ...
To find this item in a library, enter a postal code, state, province, or country in the field above.
WorldCat is provided by OCLC Online Computer Library Center, Inc. on behalf of its member libraries.
Virus taxonomy : classification and nomenclature of viruses : seventh report of the International Committee on Taxonomy of Viruses
http://worldcatlibraries.org/wcpa/ow/dd15198af23a67b1a19afeb4da09e526.html   (77 words)

  
 The Big Picture Book of Viruses - Families by Genome
- Virus Names - Virus Families - Virus Hosts - Viruses By Genome Type
http://www.virology.net/Big_Virology/BVFamilyGenome.html   (51 words)

  
 Virus databases online
1217-1226, ASM Press, Washington DC Büchen-Osmond C. The Universal Virus Database ICTVdB.
http://www.ncbi.nlm.nih.gov/ICTVdb   (149 words)

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