Fig. 1From: Viral hepatitis B and C in HIV-exposed South African infantsPhylogenetic tree of HBV-infected infants and Cape Town mother based on the HBV core region. Sequences with accession numbers starting with JX and KF were downloaded from GenBank. The evolutionary history was inferred by using the Maximum Likelihood method based on the General Time Reversible model with 1000 bootstrap replicates. A discrete Gamma distribution [25] was used to model evolutionary rate differences among sitesBack to article page