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recombinant virus
A recombinant virus is a virus produced by recombining pieces of DNA using recombinant DNA technology. This may be used to produce viral vaccines or gene therapy vectors.
It is also used to refer to naturally occurring recombination between virus genomes in a cell infected by more than one virus strain. This occurs either by homologous crossing over of the nucleic acid strands or by reassortment of genomic segments. Both these and mutation within the virus have been suggested as ways in which influenza and other viruses evolve. An example of a recombinant virus is Western equine encephalitis virus (WEE), which is a recombinant virus between two other closely related yet distinct encephalitis viruses. In addition, reassortment is most important for pandemic influenza viruses.
==See also==
*Reassortment
*Mutation
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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