His main research concerns Virology, Sapovirus, Norovirus, Genotype and Capsid. His Virology research incorporates elements of Phylogenetics and Microbiology. His Phylogenetics study which covers Genome that intersects with Recombinant DNA.
His study in Norovirus is interdisciplinary in nature, drawing from both Molecular epidemiology and Rotavirus. His research in Genotype is mostly concerned with Genotyping. The study incorporates disciplines such as Molecular typing, Pathogen, Mink and Disease in addition to Outbreak.
His primary scientific interests are in Virology, Sapovirus, Genotype, Norovirus and Genetics. Tomoichiro Oka combines subjects such as Recombinant DNA and Microbiology with his study of Virology. His Sapovirus research includes themes of Pathogen, Feces, Viral replication, Caliciviridae Infections and Sequence analysis.
His biological study spans a wide range of topics, including Phylogenetics and Whole genome sequencing. Tomoichiro Oka focuses mostly in the field of Norovirus, narrowing it down to topics relating to Molecular epidemiology and, in certain cases, Caliciviridae. His research investigates the connection between Capsid and topics such as Molecular biology that intersect with problems in Reverse transcription polymerase chain reaction.
His primary areas of study are Virology, Sapovirus, Genome, Genetics and Phylogenetic tree. His Virology research integrates issues from Strain, Recombination and Pathogenesis. Genotype and Norovirus are inextricably linked to his Sapovirus research.
His Genotype study combines topics in areas such as Reverse transcription polymerase chain reaction, Cysteine protease, Outbreak, Complementary DNA and Primer. His work deals with themes such as Feces and Sequence analysis, which intersect with Genome. Tomoichiro Oka interconnects Wild boar, Phylogenetics, Virus and Metagenomics in the investigation of issues within Phylogenetic tree.
The scientist’s investigation covers issues in Sapovirus, Virology, Genetics, Genome and Polymerase chain reaction. His Sapovirus study improves the overall literature in Genotype. He has researched Genotype in several fields, including GenBank, Outbreak and Capsid.
Norovirus and Viral replication are the primary areas of interest in his Virology study. His Polymerase chain reaction research incorporates themes from Amino acid, Sequence analysis, NS3, Mink and Protein sequencing. The various areas that he examines in his Coding region study include Peptide sequence, Strain, Genetic diversity and Phylogenetics.
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Coexistence of Multiple Genotypes, Including Newly Identified Genotypes, in Outbreaks of Gastroenteritis Due to Norovirus in Japan
Tsutomu Kageyama;Michiyo Shinohara;Kazue Uchida;Shuetsu Fukushi.
Journal of Clinical Microbiology (2004)
Phylogenetic analysis of the complete genome of 18 Norwalk-like viruses.
Kazuhiko Katayama;Haruko Shirato-Horikoshi;Shigeyuki Kojima;Tsutomu Kageyama.
Detection of human sapovirus by real-time reverse transcription-polymerase chain reaction
Tomoichiro Oka;Kazuhiko Katayama;Grant S. Hansman;Tsutomu Kageyama.
Journal of Medical Virology (2006)
Norovirus Infections in Symptomatic and Asymptomatic Food Handlers in Japan
Kazuhiro Ozawa;Tomoichiro Oka;Naokazu Takeda;Grant S. Hansman.
Journal of Clinical Microbiology (2007)
Comprehensive Review of Human Sapoviruses
Tomoichiro Oka;Tomoichiro Oka;Qiuhong Wang;Kazuhiko Katayama;Linda J. Saif.
Clinical Microbiology Reviews (2015)
Genetic and antigenic diversity among noroviruses.
Grant S. Hansman;Katsuro Natori;Haruko Shirato-Horikoshi;Satoko Ogawa.
Journal of General Virology (2006)
Cell culture isolation and sequence analysis of genetically diverse US porcine epidemic diarrhea virus strains including a novel strain with a large deletion in the spike gene.
Tomoichiro Oka;Linda J. Saif;Douglas Marthaler;Malak A. Esseili.
Veterinary Microbiology (2014)
Human Sapoviruses: Genetic Diversity, Recombination, and Classification
Grant S. Hansman;Tomoichiro Oka;Kazuhiko Katayama;Naokazu Takeda.
Reviews in Medical Virology (2007)
Distribution of phospholipid transfer protein in human plasma: presence of two forms of phospholipid transfer protein, one catalytically active and the other inactive.
Tomoichiro Oka;Takeshi Kujiraoka;Mayumi Ito;Tohru Egashira.
Journal of Lipid Research (2000)
Isolation and partial characterization of the inactive and active forms of human plasma phospholipid transfer protein (PLTP).
Minna Kärkkäinen;Tomoichiro Oka;Vesa M. Olkkonen;Jari Metso.
Journal of Biological Chemistry (2002)
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