Fig. 1From: An epidemiological investigation to reconstruct a probable human immunodeficiency virus -1 transmission network: a case reportBayesian time-scaled tree of the HIV-1 B sequences. The asterisks (*) along a branch represent significant statistical support for the clade subtending that branch (posterior probability = 100 %). The numbers at the internal node represent the estimated date of the origin and the uncertainty indicated by 95% highest posterior density intervals. a Couple (male and female) tree. b Dated male viral phylogenyBack to article page