Reassortment of the influenza virus genome
Mutation is an important source of RNA virus diversity that is made possible by the error-prone nature of RNA synthesis. Viruses with segmented genomes, such as influenza virus, have another…
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Detecting viruses: the plaque assay
One of the most important procedures in virology is measuring the virus titer – the concentration of viruses in a sample. A widely used approach for determining the quantity of…
How viruses are classified
…(rhinovirus, adenovirus). Some viruses are named for where they were first isolated (Sendai virus, Coxsackievirus), for the scientists who discovered them (Epstein-Barr virus), or for the way people imagined they…
Bodyguard manipulation by a virus
…ladybeetle. Sequencing of RNA from the heads of parasitized ladybeetles revealed the presence of an RNA virus which the authors call D. coccinellae paralysis virus, DcPV. The virus is a…
Polio-like paralysis in California
…etiologies. One possibility is that a non-polio enterovirus is involved. Poliovirus is classified within the genus Enterovirus in the family Picornaviridae. Other enteroviruses besides poliovirus are known to cause paralytic…
Natural antibody protects against viral infection
…are inactivated by heating. For example, when vesicular stomatitis virus, human immunodeficiency virus type 2, and human foamy virus are grown in non-human cells which produce α-Gal, the virions can…