Safety and Immunogenicity Study of Venezuelan Equine Encephalomyelitis (VEE) Vaccine as Booster Vaccine in Adults

"administered as dose(s) of 0.5 mL given subcutaneously in the upper outer aspect of the triceps area. Subjects who showed an initial immune response ≥ 1:20 to TC-83 and whose titer decreased over time or who rollover from a previous VEE C-84 protocol will receive a single 0.5 mL booster dose of C-84 vaccine.~Subjects who were initial non-responders (\< 1:20) to TC-83 will be given subcutaneous 0.5 mL injections on Days 0, 28-35, and 56-63"