FIELD: biotechnology, medicine. SUBSTANCE: enzymotherapeutic and antiviral preparation is living culture of weak virulent and biochemically active strains of β--hemolytic streptococci of group A in sterile saline solution at concentration 1-2 billion/ml bacterial cells. Method of preparing involves culture mixing with meat-peptone broth and glucose at pH = 7.6-7.8. After flake-like precipitate formation culture is transferred on solid blood agar and incubated. Living culture is removed from blood agar surface by sterile saline solution up to the definite concentration. EFFECT: improved method of preparing.
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