Figure 2

Reconstructed demographic profiles for (a) env V1-V4 and (b) gag p24. Estimates of Nτ are shown on a log scale against time backwards since the most recent sample. Only days on which sequences were sampled are shown, measured relative to the first recipient sample (day 0). Mean estimates of Nτ obtained from the best fit Logistic-Constant demographic model and the Bayesian skyline plot are shown with their HPD confidence bounds.