Projected probabilities of remaining HIV negative for study participants.

<p>Subject 2445 had the highest probability to seroconvert but got lost to follow-up; thus, her survival curve is represented with a dotted line. Subjects who seroconverted after 6 months are highlighted in red. The vertical line corresponds to 6-month follow-up check and the horizontal line corresponds to a 50% probability of seroconversion.