Procedures for both stages will be as follows: On Day 0, each healthy volunteer subject has apheresis platelets collected. INTERCEPT treatment will begin on either the day of donation (Day 0) or before the end of the day following donation (Day 1). Platelets will then be stored for 7 days after collection (Day 7). Aliquots for in vitro platelet function will be taken on Day 0/1 after INTERCEPT treatment and Day 7. An aliquot for bacterial detection will be taken on Day 5.