| preponderance of hepatitis b virus genotype b contributes to a better prognosis of chronic hbv infection in okinawa, japan. | the present study was designed to examine the distribution of hepatitis b virus (hbv) genotypes among patients at various stages of chronic liver disease type b in okinawa prefecture, japan, where the prevalence of hepatitis b surface antigen is the highest in japan despite the lowest mortality rate from primary liver cancer. serum samples from 227 hbv carriers were determined for hbv genotype by polymerase chain reaction (pcr)-restriction fragment length polymorphism. five of 227 sera were nega ... | 2002 | 12115993 |
| genotype analysis, using pcr with type-specific primers, of hepatitis b virus isolates from patients coinfected with hepatitis delta virus genotype ii from miyako island, japan. | the aims of this study were to determine the hepatitis b virus (hbv) genotypes in hepatitis delta virus (hdv) rna-positive patients and to characterize the hbv nucleotide sequences that may be found on a distant island of japan. | 2003 | 12684550 |