Figure 1.

Kaplan-Meier estimated cumulative distribution of episode duration for each virus. Blip episodes had a duration ≤1 week. The vertical line at 1 week denotes the cutoff for blips; the percentage of blips is listed to the left. Estimated median episode duration occurs where the curves cross 50%. All episodes >4 weeks (vertical line at 4 weeks) were categorized together; the percentage is listed to the right. Curves are color coded by virus type. Using cytomegalovirus as an example, 32% of episodes were blips (therefore, 68% were persistent), the estimated median episode duration was 3 weeks, and 35% of episodes lasted >4 weeks. Abbreviations: AdV, adenovirus; BKV, BK polyomavirus; CMV, cytomegalovirus; EBV, Epstein-Barr virus; HHV-6B, human herpesvirus 6B.