Viral Classification

Family
Viron Structure
Diameter (nm )
Examples
Papovavirus dsDNA
naked polyhedral
40-57

Papilloma( human warts, cervical cancer) polyoma, and simian viruses

Adenovirus dsDNA
naked polyhedral
70-80

respiratory viruses

Herpesvirus dsDNA
enveloped polyhedral
150-250

Herpes simplex, herpes simplexII, varicella zoster,Epstein Barr virus

Poxvirus dsDNA
enveloped polyhedral
200-350

Variola (smallpox), vaccinia; cowpox

Parvovirus ssDNA
naked polyhedral
18-26

depend on coinfection with adenoviruses for growth

Picornavirus ssRNA that can serve as mRNA (+RNA)
naked polyhedral
18-38

Poliovirus, rhinovirus(common cold),enteric viruses

Togavirus ssRNA that can serve as mRNA (+RNA)
enveloped polyhedral
40-60

Rubella virus, yellow fever virus, encephalitis virus (insect transmission)

Retrovirus ssRNA that can serve as mRNA (+RNA)
enveloped polyhedral; 2 copies of genome per viron
100-120

RNA tumor viruses, AIDS

Rhabdovirus ssRNA that is a template for mRNA (-RNA)
enveloped helical
70-180

Rabies

Paramyxovirus ssRNA that is a template for mRNA (-RNA)
enveloped helical
150-300

measles and mumps

Orthomyxovirus ssRNA that is atemplate for mRNA (-RNA)
enveloped helical, RNA in eight segments
80-200

influenza viruses

Reovirus ds RNA
naked polyhedral;RNA in ten segments
60-80

Diarrhea viruses