Ratanakorn, P.

gibbon virus transmission gibbon hbv hepatitis animal hepatitis b virus sequence carrier hbv dna pileatus h lar h analysis saliva infection krabok koo centre sample hbsag hbv infection pileatu phylogenetic genotype centre nonhuman primate hbv family thailand hbv carriers human table sequencing virol krabok promoter hbv transmission rflp analysis virology animal caretakers nonhuman virology 84 transmission precore strain genbank accession numbers mutation pattern mother study nucleotide sequences sequence similarity antibody nt 1762 detection nonhuman primates antigen university species primate population noppornpanth region chimpanzees product family members gibbon viruses gibbon population pres 1 sequences 33 bp deletion hbeag phylogenetic tree analysis genome serum hepatitis b erasmus university rotterdam baby r 6 chulalongkorn university phylogenetic analysis liver relationship pres 1 region carrier gibbons program