Abstract: The present invention discloses a method for the treatment of Flaviviridae infection that includes the administration of a 2?-branched nucleoside, or a pharmaceutically acceptable prodrug and/or salt thereof, to a human in need of therapy in combination or alternation with a drug that directly or indirectly induces a mutation in the viral genome at a location other than a mutation of a nucleotide that results in a change from serine to a different amino acid in the highly conserved consensus sequence, XRXSGXXXT (SEQ ID NO: 63), of domain B of the RNA polymerase region, or is associated with such a mutation. The invention also includes a method to detect a mutant strain of Flaviviridae and a method for its treatment.

Abstract: The present invention discloses a method for the treatment of Flaviviridae infection that includes the administration of a 2?-branched nucleoside, or a pharmaceutically acceptable prodrug and/or salt thereof, to a human in need of therapy in combination or alternation with a drug that directly or indirectly induces a mutation in the viral genome at a location other than a mutation of a nucleotide that results in a change from serine to a different amino acid in the highly conserved consensus sequence, XRXSGXXXT (SEQ ID NO: 63), of domain B of the RNA polymerase region, or is associated with such a mutation. The invention also includes a method to detect a mutant strain of Flaviviridae and a method for its treatment.

Abstract: The present invention discloses a method for the treatment of Flaviviridae infection that includes the administration of a 2?-branched nucleoside, or a pharmaceutically acceptable prodrug and/or salt thereof, to a human in need of therapy in combination or alternation with a drug that directly or indirectly induces a mutation in the viral genome at a location other than a mutation of a nucleotide that results in a change from serine to a different amino acid in the highly conserved consensus sequence, XRXSGXXXT, of domain B of the RNA polymerase region, or is associated with such a mutation; The invention also includes a method to detect a mutant strain of Flaviviridae and a method for its treatment.

Abstract: Provided in one embodiment is a non-infectious, recombinant hepadnavirus core particle composition comprising isolated hepadnavirus core particles, template RNA encapsidated in the same core particles and hepadnavirus polymerase encapsidated in the same core particles, wherein, upon addition of deoxynucleoside triphosphates to the composition, the hepadnavirus polymerase incorporates deoxynucleotides from the added deoxynucleosides into reverse transcripts of the template RNA beginning with the first deoxynucleotide of the reverse transcript or within about 10 deoxynucleotides of the first deoxynucleotide of the reverse transcript. Another embodiment provides hapadnaviral core particles with all three functional components: (1) P; (2) C; and (3) a nucleic acid that serves as a template.