Medical Definition of Plaque-forming unit
1.
Number of infectious virus particles or Ig producing cells per unit volume.
See: plaque assay.
Refers to any entity which can give rise to a plaque. For example: if a phage stock solution has 1010 pfu/ml, it means that every ml of this stock has 1010 phage particles which can form plaques. This (pfu/ml) is the conventional way to refer the concentration of a phage preparation.
Compare: CFU.
(10 Oct 1997)
Lexicographical Neighbors of Plaque-forming Unit
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