If immunogenicity can be shown after the second administration of the Vaccine containing 1 µg of rTSST-1 Ag, doses and sample sizes will be increased to Vaccine containing 3 µg , 10 µg, and 30 µg and adjuvant containing 1 mg Al(0H)3 in nine and three subjects in Groups 4 - 6, respectively. Otherwise, the sample size of 3 + 1 will continue until immunogenicity is seen at a higher dose level.