- In Cohort 3, participants received six separate high-dose vaccinations of LC002 (Arm E: 0.4 mg DNA/participant, 3.2 ml total, administered over four skin sites of 80 cm^2 each, 0.8 ml/site) or six vaccinations of placebo (Arm F: 3.2 ml total, administered over four skin sites of 80 cm^2 each, 0.8 ml/site). Vaccinations were given over four skin sites on the left and right upper back and left and right upper ventral thigh. Participants received vaccinations at study entry and weeks 1, 6, 7, 12, and 13.