Minute infectious agents whose genomes are composed of DNA or RNA, but not both. They are characterized by a lack of independent metabolism and the inability to replicate outside living host cells.
    

concept

A monster representing an influenza virus hitting a man over the head as he sits in his armchair. Pen and ink drawing by E. Noble, c. 1918.

Rotavirus, electron micrograph - coloured

Bluetongue virus core particle

Bluetongue virus core particles

TEM of Molluscum virus

Filterable virus and rickettsia diseases / by Earl Baldwin McKinley.

Virusologi︠︡ia / V. M. Zhdanov, S. I︠A︡. Gaĭdamovich.

Pathogenesis and etiology of demyelinating diseases : a symposium organized by Edith Pette and O. Westphal / edited by Krystina Burdzy and P. Kallós.

Advances in virus research. Volume 10 / edited by Kenneth M. Smith, Max A. Lauffer.

Advances in virus research. Volume 7 / edited by Kenneth M. Smith, Max A. Lauffer.

Viruses

Images

Catalogue

Filterable virus and rickettsia diseases / by Earl Baldwin McKinley.

Virusologi︠︡ia / V. M. Zhdanov, S. I︠A︡. Gaĭdamovich.

Pathogenesis and etiology of demyelinating diseases : a symposium organized by Edith Pette and O. Westphal / edited by Krystina Burdzy and P. Kallós.

Advances in virus research. Volume 10 / edited by Kenneth M. Smith, Max A. Lauffer.

Advances in virus research. Volume 7 / edited by Kenneth M. Smith, Max A. Lauffer.