| abstract |
An object of the present invention is to provide a method for producing an active ingredient of a drug or a diagnostic agent. In the method of the invention, (a) MDCK cells are infected with a virus; and (b) in a commercial scale suspension culture under conditions that allow the virus to grow. MDCK cells are cultured; where the culturing step is performed in a volume of at least 30 L. The invention also relates to a method for producing a drug or diagnostic agent, wherein the active ingredient is produced according to the method described above and mixed with a suitable adjuvant, adjuvant, buffer, diluent or drug carrier. . [Selection figure] None |