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Liposomes as carriers for vaccines.

A liposome vaccine formulation that has been successfully used in both animal immunization studies and clinical trials is described. Issues concerning the choice of components for the liposomal vaccine formulation are discussed, especially with respect to the lipid components and the adjuvant. A procedure is described for manufacturing liposomal vaccines using Good Manufacturing Practices as promulgated by the U.S. Food and Drug Administration. Quality control testing for clinical use is described, with particular emphasis on aspects relevant to liposomes. Utilization issues are discussed, including injection volumes, antigen and adjuvant doses, and routes of administration.