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Virus latency
Virus latency (or viral latency) is the ability of a pathogenic virus to lie dormant (latent) within a cell, denoted as the lysogenic part of the viral life cycle.〔Villarreal, Luis P. (2005). Viruses and the evolution of life. Washington, ASm Press.〕 A latent viral infection is a type of persistent viral infection which is distinguished from a chronic viral infection. Latency is the phase in certain viruses' life cycles in which, after initial infection, proliferation of virus particles ceases. However, the viral genome is not fully eradicated. The result of this is that the virus can reactivate and begin producing large amounts of viral progeny without the host being infected by new outside virus, denoted as the lytic part of the viral life cycle, and stays within the host indefinitely.〔N.J. Dimmock et al. "Introduction to Modern Virology, 6th edition." Blackwell Publishing, 2007.〕
Virus latency is not to be confused with clinical latency during the incubation period when a virus is ''not'' dormant.
== Mechanisms ==
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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