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Subject Disposition Through Day 84.
F/U=follow up; ITT=intent to treat; OOO=out of window; Plc=placebo; TNA=toxin neutralizing antibody. Subjects were randomized to 1 of 5 study groups at a 4:3:2:4:2 ratio. One-hundred sixty-eight subjects were randomized and received at least one vaccination; 158 subjects completed the in-clinic visits through Day 84; and 147 subjects completed the in-clinic visits through Day 84 and received all 3 vaccinations.
