Boxplots of the TMRCA posterior distributions.

Dashed lines represent the 95% High Posterior Density (HPD). First (25%) and third (75%) quartiles (limits of the rectangle) and median (thick line) are also indicated. According to the biomedical reference diagnostic method, the four top infants with white boxplots were infected in utero, whereas the five bottom infants with grey boxplots were infected intra partum. Vertical red lines indicate the maximum estimates of TMRCA.