Spray-dried alum compositions
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United States of America Patent
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app pub date -
May 25, 2004
filing date -
Jun 8, 2000
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Abandoned
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Abstract
A gel-forming free-flowing powder suitable for use as a vaccine is prepared by spray-drying an aqueous suspension that contains an antigen adsorbed to an aluminum salt adjuvant, a saccharide, an amino acid or a salt thereof, and a colloidal substance. Processes for forming these powder compositions are also described, as well as methods of using the compositions in a vaccination procedure.
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