Dictionary » P » Plaque-forming unit

Plaque-forming unit


A measure of the quantity of individual infectious particles (e.g. virus particles) based on the number of plaque formed per unit volume.


Theoretically, the plaque-forming unit includes only the infectious virus particles since a virus particle failing to infect a host cell will not be able to produce a plaque, hence, will not be counted. PFU rules out possible multiple-hit phenomena and include only the particles capable of infecting cells on their own. Thus, one PFU means one lytic event (or one infectious virus particle).

Abbreviation: PFU
Compare: colony-forming unit (CFU).

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The Fiber Disease

... infection. He is currently being monitored at the specialized referral unit in Belem. He does not have any opportunistic infections and is not taking ... of the lesion included an erythematous-infiltrated, hypertrophic plaque with a verrucous surface ≈4 cm long in the distal third of the ...

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by Skytroll
Mon Nov 20, 2006 3:34 am
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Topic: The Fiber Disease
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