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FREEZE DRYING METHOD TO PRODUCE VACCINE FOR MENINGITIS BACILLUS WITHOUT LOWERING ACTIVITY
FREEZE DRYING METHOD TO PRODUCE VACCINE FOR MENINGITIS BACILLUS WITHOUT LOWERING ACTIVITY
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机译:冷冻干燥法生产无致弱芽孢杆菌的疫苗
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摘要
The purified Group A polysaccharide antigen isolated from N. meningitidis for vaccination against this type of bacterial meningitidis is prepared from an isotonic ratio of aqueous sodium chloride solution freeze-dried at temperatures of from -20 DEG C. to -30 DEG C. This low temperature lyophilization dries the sodium chloride polysaccharide menstrum without loss of molecular weight, i.e., potency.
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