preamble_227

Council Directive 80/217/EEC of 22 January 1980 introducing Community measures for the control of classical swine fever · European Union

This test is based on the microplaque counting method. Three-fold dilutions of serum commencing at 1/20 are tested against an equal volume of virus suspension containing 300 to 1 000 plaque forming units (PFU) of a virulent strain of swine fever virus using at least two monolayer cultures per dilution.

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Source: EUR-Lex (Cellar) · retrieved 2026-11-09 · Text as adopted (Official Journal); later amendments are not incorporated in this text.