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<center>[[Image:Viralbiorealm_banner.jpg|center]]</center><br>

'''Educators:''' You may assign Microbial Biorealm page creation and editing as a project for your students.  We create a template page for your assignment, which you may edit to meet your needs.  See for example the pages created by the following classes:

* BIMM120 Bacteriology, Dr. Rachel Larsen and Dr. Kit Pogliano, [[UCSD | University of California at San Diego]]
* BI 230 Microbiology, Dr. Kirk Bartholomew, [[Sacred Heart University]]
* MB 103 Introductory Topics in Microbiology, [http://www.mbio.ncsu.edu/JWB/home.html James Brown], NC State University (student pages in progress)

Your students receive individual passwords.  Assessment and "grading" are up to you; after your class is over, we review pages for our standards.  Students of all levels, from first-year to graduate students, have contributed pages to our site.<br><br>
'''Managing Editor: [mailto:barichd@kenyon.edu '''Daniel Barich '05''']<br>
'''Advisor:''' [http://biology.kenyon.edu/slonc/slonc.htm Joan Slonczewski], [http://biology.kenyon.edu/welcome.htm Biology Dept], [http://www.kenyon.edu Kenyon College].<br /> 
'''Funding:''' [http://biology.kenyon.edu/HHMI/index.htm HHMI] award to [http://www.kenyon.edu Kenyon College], 2004'''<br><br>
'''Student Editors:'''
Molly Schlemmer '08, Shrochis Karki '09, Daniel Barich '05, Ryotaro Tashiro '09<br>



For alphabetical listing, see [[Taxonomy Index]]. New virus contributions are welcome.<br>
To become an editor, you can request a [[Contact MicrobeWiki|free account]].<br><br>

<font size="+2" color="#55075D">Virus Classification: The Baltimore System</font>
----<br>
==Group I.  Double-stranded DNA viruses==

Replicate using host or viral DNA polymerase. 

'''Non-enveloped bacteriophages:''' 
:[[Myoviridae]] 
:[[Siphoviridae]] 
:[[Tectiviridae]]
'''Archaeal viruses:''' 
:[[Ampullaviridae]]
:[[Bicaudaviridae]]
:[[Fuselloviridae]]
:[[Globuloviridae]]
:[[Guttaviridae]]
:[[Lipothrixviridae]]
:[[Rudiviridae]]
'''Non-enveloped animal viruses:''' 
:[[Adenoviridae]] 
:[[Papillomaviridae]] 
:[[Phycodnaviridae]] 
:[[Iridoviridae]]
'''Enveloped animal viruses:''' 
:[[Herpesviridae]] 
:[[Poxviridae]] 
:[[Baculoviridae]]

==Group II.  Single-stranded DNA==

Genome consists of (+) sense DNA.  Requires a host DNA polymerase to generate the complementary strand.  Non-enveloped.

'''Non-enveloped bacteriophages:''' 
:[[Inoviridae]]
'''Non-enveloped animal viruses:''' 
:[[Parvoviridae]] 
:Circoviridae
::''[[Circovirus]]''
'''Non-enveloped plant viruses:''' 
:[[Geminiviridae]]


==Group III.  Double-stranded RNA==

Requires viral RNA-dependent RNA polymerase; usually packages the polymerase before exiting host cell.

'''Non-segmented, enveloped, bacteriophage:''' 
:[[Cystoviridae]]
'''Segmented, non-enveloped, animal and plant hosts:''' 
:[[Reoviridae]]
::''[[Orthoreovirus]]''
::''[[Rotavirus]]''
:[[Birnaviridae]] 
:''[[Varicosavirus]]''


==Group IV.  (+) Sense single-stranded RNA viruses==

Require viral RNA-dependent RNA polymerase to generate (-) template for progeny (+) genome.  Usually non-segmented.

'''Non-enveloped bacteriophages:''' 
:[[Leviviridae]]
'''Non-enveloped animal and plant viruses:''' 
:[[Bromoviridae]]
::''[[Bromovirus]]'' 
:[[Tombusviridae]]
::''[[Tombusvirus]]''
:[[Picornaviridae]]
::''[[Aphthovirus]]''
::''[[Enterovirus]]''
::''[[Hepatovirus]]''
::''[[Rhinovirus]]'' 
:''[[Tobamovirus]]''
:[[Potyviridae]]
::''[[Potyvirus]]''
'''Enveloped animal and plant viruses:''' 
:Coronaviridae
::''[[Coronavirus]]'' 
:[[Flaviviridae]]
::''[[Hepacivirus]]'' 
::''[[Flavivirus]]''
:[[Togaviridae]]

==Group V.  (-) Sense single-stranded RNA viruses==

Require viral RNA-dependent RNA transcriptase.

'''Segmented, enveloped:''' 
:[[Orthomyxoviridae]]
'''Nonsegmented, enveloped:''' 
:[[Filoviridae]] 
:[[Rhabdoviridae]] 
:[[Paramyxoviridae]]
'''Segmented (+/-) strand enveloped:''' 
:[[Arenaviridae]] 
:[[Bunyaviridae]]
::''[[Hantavirus]]''


==Group VI.  RNA Reverse Transcribing Viruses (Retroviruses)==

Require viral reverse transcriptase to generate DNA copy for integration into host chromosome.   Package transcriptase before exiting host cell.

:[[Retroviridae]]
::''Lentivirus''
:::''[[Human immunodeficiency virus|Human Immunodeficiency Virus]]''


==Group VII.  DNA Reverse Transcribing Viruses (Pararetroviruses)==

DNA is transcribed to RNA intermediate; reverse-transcribed to DNA.  Infects plant cells, which have cytoplasmic reverse transcriptase; or package a viral reverse transcriptase.

'''Non-enveloped plant viruses:''' 
: [[Caulimoviridae]] 
::''[[Badnavirus]]''
::''[[Caulimovirus]]''
'''Enveloped animal viruses:''' 
: [[Hepadnaviridae]]
::''Orthohepadnavirus''
:::''[[Hepatitis B virus]]''