Viral infection

Human, animal or plant disease resulting from a viral infection

A viral infection (or viral disease, or infectious disease) occurs when a living thing's body is entered in an unwanted way by disease-causing viruses, and able to be caught from others virus particles (virions) attach to and enter susceptible cells.[1]

Viral disease

Structural characteristicsEdit

Basic structural features, such as genome type, virion shape and replication site, generally share the same features among virus species inside the same family.


  1. 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. PMC 3479527. PMID 23027939.