Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Phylogenetic tree of a 497-bp fragment of the HBV S gene obtained from 48 patients with acute febrile jaundice and from 48 reference HBV sequences. Only bootstrap values ≥70 are shown (500 replicates). Sequences from this work are shown in red and reference sequences are labeled with their accession numbers and country of origin. The letters A, B, C, D, E, F, G, H, and I indicate the HBV genotype and the numbers indicate the subgenotypes.
