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preamble_247

The SF and BVD virus strains for use should have been officially approved. To rule out the suspicion of swine fever raised by the detection of antibody blood samples should be examined by comparative end-point titrations for neutralizing antibody against SF virus and BVD virus.

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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.