The numbers of independent BED tests provided by the 353 women who seroconverted during follow-up in the ZVITAMBO Trial, when either no exclusion criteria were applied, or where case were excluded if either there was only <i>s</i> = 1 sample per case, or the maximum time (<i>t</i>^max) between the last negative and first positive HIV tests was greater than 120 days.

<p>The numbers of independent BED tests provided by the 353 women who seroconverted during follow-up in the ZVITAMBO Trial, when either no exclusion criteria were applied, or where case were excluded if either there was only <i>s</i> = 1 sample per case, or the maximum time (<i>t</i>^max) between the last negative and first positive HIV tests was greater than 120 days.