Vaccine stabilizer containing L-glutamic acid and L-arginine
AssigneeMerck & Co., Inc.
InventorsWilliam J. McAleer, Henry Z. Markus
Life of this patent
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Abstract
An improved stabilized liquid live viral vaccine contains a live virus, partially hydrolyzed gelatin, a monosaccharide or disaccharide, a cell culture medium, L-glutamic acid, L-arginine and sufficient physiologically acceptable acidic buffer to maintain the pH at from about 6.0 to about 6.5.
Claims4
A stabilizer for a liquid vaccine consisting essentially of on a parts by weight basis from about 1.5 to about 2.1 parts partially hydrolyzed gelatin having a molecular weight of about 3,000, from about 7.0 to about 13.0 parts of sorbitol, sucrose, lactose or maltose, from about 0.4 to about 0.6 parts of an in vitro cell culture medium, from about 0.35 to about 0.7 part L-glutamic acid, from about 0.75 to about 1.3 parts L-arginine, and an amount of a physiologically acceptable acidic buffer effective to adjust the pH to from about 6.0 to about 6.5.
Dependencies are inferred from the claim text.