Blood and shedding matrix collection timeline. The baseline and follow-up sample collection regimen for blood, saliva, urine, stool, and semen are shown. Arrows indicate the timing (days to weeks) of sample collection for qPCR analyses during the first 156 weeks after infusion. Samples were collected and assessed until at least 3 consecutive negative samples were obtained. ^aOn the day of infusion (1), sample collection occurred between 2 and 24 hours after dosing. ^bSemen collection and testing continued through week 12, even if 3 consecutive negative samples were previously collected. ^cParticipants who did not have 3 consecutive negative samples for semen by week 52 continued testing every 4 weeks during the second year and every 6 weeks thereafter (year 3). ^dFor all samples other than semen, participants who did not have 3 consecutive negative samples by week 52 continued testing every 12 weeks until 3 consecutive negative samples were recorded. BL, baseline.