Fits to the BED OD data for ZVITAMBO mothers providing at least six BED samples following seroconversion.

<p>Fitting the non-linear function given by <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0049661#pone.0049661.e036" target="_blank">Equation (9</a>) to the log-transformed BED OD data for 12 different women in the ZVITAMBO Trial who provided either six or seven separate BED results following seroconversion, and where the time between last negative and first positive HIV tests was at most 120 days. Plots of log_e(OD) against estimated time since seroconversion.