Yoshiki Sugai

Typing hepatitis C virus by polymerase chain reaction with type-specific primers: application to clinical surveys and tracing infectious sources

Hiroaki Okamoto, Yuichi Sugiyama, S Okada et al. · Journal of General Virology · 1992 · 1.3K citations

Infectious Sources, Type-specific Primers, Viral Diagnostics +17

Detection of hepatitis C virus RNA by a two-stage polymerase chain reaction with two pairs of primers deduced from the 5'-noncoding region.

Hiroaki Okamoto, S Okada, Y Sugiyama et al. · PubMed · 1990 · 549 citations

Viral Diagnostics, Molecular Biology, Pathology +19

Hepatitis B viruses with precore region defects prevail in persistently infected hosts along with seroconversion to the antibody against e antigen

Hiroaki Okamoto, S Yotsumoto, Y. Akahane et al. · Journal of Virology · 1990 · 518 citations · Full text

Vaccination, Viral Replication, Molecular Virology +15

Hepatitis B virus with mutations in the core promoter for an e antigen-negative phenotype in carriers with antibody to e antigen

Hiroaki Okamoto, Fumio Tsuda, Y. Akahane et al. · Journal of Virology · 1994 · 488 citations · Full text

Genetics, Immunology, Hepatitis B +17

Polyphyletic Strains of Hepatitis E Virus Are Responsible for Sporadic Cases of Acute Hepatitis in Japan

Hitoshi Mizuo, Kazuyuki Suzuki, Yasuhiro Takikawa et al. · Journal of Clinical Microbiology · 2002 · 294 citations · Full text

Pathology, Genotype Iv, Hepatic Disorders +18