World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Microbiology 70 1937 1763 818 720 259 17883

Naokazu Takeda publications per year

The chart shows the history of publications by Naokazu Takeda between 1981 and 2022, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Naokazu Takeda published across 42 years, from 1981 to 2022, averaging 6.4 papers a year. Output peaked at 18 publications in 2006. 7 of the 268 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1981 to 2022. Vertical axis: number of publications, 0 to 18. Peak 18 publications in 2006. 1981: 1 publication 1982: 1 publication 1983: 0 publications 1984: 2 publications 1985: 1 publication 1986: 2 publications 1987: 4 publications 1988: 1 publication 1989: 4 publications 1990: 2 publications 1991: 3 publications 1992: 3 publications 1993: 2 publications 1994: 7 publications 1995: 2 publications 1996: 2 publications 1997: 4 publications 1998: 1 publication 1999: 1 publication 2000: 9 publications 2001: 5 publications 2002: 10 publications 2003: 6 publications 2004: 14 publications 2005: 16 publications 2006: 18 publications 2007: 16 publications 2008: 17 publications 2009: 16 publications 2010: 12 publications 2011: 9 publications 2012: 12 publications 2013: 9 publications 2014: 10 publications 2015: 8 publications 2016: 8 publications 2017: 5 publications 2018: 4 publications 2019: 6 publications 2020: 8 publications 2021: 6 publications 2022: 1 publication
1981 2022

268 publications in total across all disciplines

View publications per year as a table
Naokazu Takeda: publications per year, 1981 to 2022
Year Publications
1981 1
1982 1
1983 0
1984 2
1985 1
1986 2
1987 4
1988 1
1989 4
1990 2
1991 3
1992 3
1993 2
1994 7
1995 2
1996 2
1997 4
1998 1
1999 1
2000 9
2001 5
2002 10
2003 6
2004 14
2005 16
2006 18
2007 16
2008 17
2009 16
2010 12
2011 9
2012 12
2013 9
2014 10
2015 8
2016 8
2017 5
2018 4
2019 6
2020 8
2021 6
2022 1
Total 268
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Naokazu Takeda publication distribution in Microbiology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Microbiology in 2026. The highlighted bar marks where Naokazu Takeda sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 64 bars. Horizontal axis: publications, 55–64 to 679+. Vertical axis: number of scientists, 0 to 288. Most scientists, 288, have 135–144 publications. The last bar groups every scientist with 679 publications or more. The highlighted bar, 255–264 publications, is where this scientist sits. 55–64 publications: 8 scientists 65–74 publications: 29 scientists 75–84 publications: 55 scientists 85–94 publications: 112 scientists 95–104 publications: 137 scientists 105–114 publications: 190 scientists 115–124 publications: 235 scientists 125–134 publications: 234 scientists 135–144 publications: 288 scientists 145–154 publications: 265 scientists 155–164 publications: 264 scientists 165–174 publications: 253 scientists 175–184 publications: 276 scientists 185–194 publications: 190 scientists 195–204 publications: 234 scientists 205–214 publications: 208 scientists 215–224 publications: 198 scientists 225–234 publications: 155 scientists 235–244 publications: 161 scientists 245–254 publications: 160 scientists 255–264 publications: 146 scientists 265–274 publications: 139 scientists 275–284 publications: 148 scientists 285–294 publications: 115 scientists 295–304 publications: 96 scientists 305–314 publications: 88 scientists 315–324 publications: 106 scientists 325–334 publications: 65 scientists 335–344 publications: 76 scientists 345–354 publications: 64 scientists 355–364 publications: 62 scientists 365–374 publications: 65 scientists 375–384 publications: 61 scientists 385–394 publications: 34 scientists 395–404 publications: 44 scientists 405–414 publications: 36 scientists 415–424 publications: 35 scientists 425–434 publications: 29 scientists 435–444 publications: 33 scientists 445–454 publications: 34 scientists 455–464 publications: 25 scientists 465–474 publications: 26 scientists 475–484 publications: 20 scientists 485–494 publications: 19 scientists 495–504 publications: 16 scientists 505–514 publications: 17 scientists 515–524 publications: 23 scientists 525–534 publications: 14 scientists 535–544 publications: 14 scientists 545–554 publications: 18 scientists 555–564 publications: 12 scientists 565–574 publications: 7 scientists 575–584 publications: 9 scientists 585–594 publications: 9 scientists 595–604 publications: 9 scientists 605–614 publications: 7 scientists 615–624 publications: 9 scientists 625–634 publications: 7 scientists 635–644 publications: 4 scientists 645–654 publications: 5 scientists 655–664 publications: 6 scientists 665–674 publications: 7 scientists 675–678 publications: 3 scientists 679+ publications: 99 scientists
55–64 publications 679+

This scientist: 259 publications — 68th percentile

68% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 679 publications or more.

View publications distribution as a table
Number of Microbiology scientists by publication count, Research.com 2026 ranking edition. Based on 5,513 ranked scientists.
Publications Scientists This scientist
55–64 8
65–74 29
75–84 55
85–94 112
95–104 137
105–114 190
115–124 235
125–134 234
135–144 288
145–154 265
155–164 264
165–174 253
175–184 276
185–194 190
195–204 234
205–214 208
215–224 198
225–234 155
235–244 161
245–254 160
255–264 146 259
265–274 139
275–284 148
285–294 115
295–304 96
305–314 88
315–324 106
325–334 65
335–344 76
345–354 64
355–364 62
365–374 65
375–384 61
385–394 34
395–404 44
405–414 36
415–424 35
425–434 29
435–444 33
445–454 34
455–464 25
465–474 26
475–484 20
485–494 19
495–504 16
505–514 17
515–524 23
525–534 14
535–544 14
545–554 18
555–564 12
565–574 7
575–584 9
585–594 9
595–604 9
605–614 7
615–624 9
625–634 7
635–644 4
645–654 5
655–664 6
665–674 7
675–678 3
679+ 99
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Naokazu Takeda D-index placement in Microbiology in 2026

The chart shows the D-index (discipline H-index) distribution of Microbiology scientists ranked by Research.com in 2026. The highlighted bar marks where Naokazu Takeda sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 88 bars. Horizontal axis: D-Index, 40 to 127+. Vertical axis: number of scientists, 0 to 162. Most scientists, 162, have 58 D-Index. The last bar groups every scientist with 127 D-Index or more. The highlighted bar, 70 D-Index, is where this scientist sits. 40 D-Index: 30 scientists 41 D-Index: 86 scientists 42 D-Index: 90 scientists 43 D-Index: 117 scientists 44 D-Index: 122 scientists 45 D-Index: 123 scientists 46 D-Index: 108 scientists 47 D-Index: 110 scientists 48 D-Index: 106 scientists 49 D-Index: 109 scientists 50 D-Index: 129 scientists 51 D-Index: 111 scientists 52 D-Index: 116 scientists 53 D-Index: 127 scientists 54 D-Index: 134 scientists 55 D-Index: 134 scientists 56 D-Index: 112 scientists 57 D-Index: 136 scientists 58 D-Index: 162 scientists 59 D-Index: 151 scientists 60 D-Index: 139 scientists 61 D-Index: 123 scientists 62 D-Index: 126 scientists 63 D-Index: 144 scientists 64 D-Index: 109 scientists 65 D-Index: 103 scientists 66 D-Index: 124 scientists 67 D-Index: 112 scientists 68 D-Index: 103 scientists 69 D-Index: 131 scientists 70 D-Index: 94 scientists 71 D-Index: 93 scientists 72 D-Index: 96 scientists 73 D-Index: 92 scientists 74 D-Index: 80 scientists 75 D-Index: 66 scientists 76 D-Index: 87 scientists 77 D-Index: 60 scientists 78 D-Index: 73 scientists 79 D-Index: 59 scientists 80 D-Index: 57 scientists 81 D-Index: 55 scientists 82 D-Index: 47 scientists 83 D-Index: 77 scientists 84 D-Index: 50 scientists 85 D-Index: 45 scientists 86 D-Index: 42 scientists 87 D-Index: 41 scientists 88 D-Index: 32 scientists 89 D-Index: 38 scientists 90 D-Index: 35 scientists 91 D-Index: 34 scientists 92 D-Index: 27 scientists 93 D-Index: 26 scientists 94 D-Index: 33 scientists 95 D-Index: 22 scientists 96 D-Index: 37 scientists 97 D-Index: 22 scientists 98 D-Index: 21 scientists 99 D-Index: 22 scientists 100 D-Index: 30 scientists 101 D-Index: 16 scientists 102 D-Index: 20 scientists 103 D-Index: 17 scientists 104 D-Index: 19 scientists 105 D-Index: 16 scientists 106 D-Index: 19 scientists 107 D-Index: 18 scientists 108 D-Index: 14 scientists 109 D-Index: 10 scientists 110 D-Index: 9 scientists 111 D-Index: 7 scientists 112 D-Index: 11 scientists 113 D-Index: 6 scientists 114 D-Index: 15 scientists 115 D-Index: 10 scientists 116 D-Index: 12 scientists 117 D-Index: 7 scientists 118 D-Index: 10 scientists 119 D-Index: 10 scientists 120 D-Index: 11 scientists 121 D-Index: 2 scientists 122 D-Index: 7 scientists 123 D-Index: 12 scientists 124 D-Index: 5 scientists 125 D-Index: 9 scientists 126 D-Index: 6 scientists 127+ D-Index: 95 scientists
40 D-Index 127+

This scientist: 70 D-Index — 66th percentile

66% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 127 D-Index or more.

View D-Index distribution as a table
Number of Microbiology scientists by D-index, Research.com 2026 ranking edition. Based on 5,513 ranked scientists.
D-Index Scientists This scientist
40 30
41 86
42 90
43 117
44 122
45 123
46 108
47 110
48 106
49 109
50 129
51 111
52 116
53 127
54 134
55 134
56 112
57 136
58 162
59 151
60 139
61 123
62 126
63 144
64 109
65 103
66 124
67 112
68 103
69 131
70 94 70
71 93
72 96
73 92
74 80
75 66
76 87
77 60
78 73
79 59
80 57
81 55
82 47
83 77
84 50
85 45
86 42
87 41
88 32
89 38
90 35
91 34
92 27
93 26
94 33
95 22
96 37
97 22
98 21
99 22
100 30
101 16
102 20
103 17
104 19
105 16
106 19
107 18
108 14
109 10
110 9
111 7
112 11
113 6
114 15
115 10
116 12
117 7
118 10
119 10
120 11
121 2
122 7
123 12
124 5
125 9
126 6
127+ 95
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Overview

Naokazu Takeda is affiliated with the National Institutes of Health in the United States. Their research is primarily situated within the field of Medicine, with a focus on several subfields including Hepatology, Infectious Diseases, Cardiology and Cardiovascular Medicine, Animal Science and Zoology, and Public Health, Environmental and Occupational Health.

The scientist's publications cover a wide range of topics, notably:

  • Viral gastroenteritis research and epidemiology
  • Hepatitis Viruses Studies and Epidemiology
  • Liver Disease and Transplantation
  • Viral Infections and Immunology Research
  • Liver Diseases and Immunity
  • Animal Virus Infections Studies
  • Mosquito-borne diseases and control

Some of the recent papers by Naokazu Takeda include:

  • Full genome-based characterization of G4P[6] rotavirus strains from diarrheic patients in Thailand: Evidence for independent porcine-to-human interspecies transmission events, 2021, Virus Genes
  • Anti-Chikungunya Virus Monoclonal Antibody That Inhibits Viral Fusion and Release, 2020, Journal of Virology
  • Experimental Cross-Species Transmission of Rat Hepatitis E Virus to Rhesus and Cynomolgus Monkeys, 2022, Viruses
  • Full genome characterization of novel DS-1-like G9P[8] rotavirus strains that have emerged in Thailand, 2020, PLoS ONE
  • Persistent infection with a rabbit hepatitis E virus created by a reverse genetics system, 2020, Transboundary and Emerging Diseases

Frequent co-authors in Naokazu Takeda's body of work include:

  • Masamichi Muramatsu
  • Tian-Cheng Li
  • Yasushi Ami
  • Yuriko Suzaki
  • Yen Hai Doan

The scientist has published predominantly in the following venues:

  • Viruses
  • Transboundary and Emerging Diseases
  • Virus Genes
  • Journal of Virology
  • PLoS ONE

Best Publications

  • Broadly Reactive and Highly Sensitive Assay for Norwalk-Like Viruses Based on Real-Time Quantitative Reverse Transcription-PCR

    Tsutomu Kageyama;Shigeyuki Kojima;Michiyo Shinohara;Kazue Uchida

  • Genogroup-specific PCR primers for detection of Norwalk-like viruses.

    Shigeyuki Kojima;Tsutomu Kageyama;Shuetsu Fukushi;Fuminori B. Hoshino

  • Hepatitis E virus transmission from wild boar meat.

    Tian-Cheng Li;Katsumi Chijiwa;Nobuyuki Sera;Tetsuya Ishibashi

  • 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

  • Expression and self-assembly of empty virus-like particles of hepatitis E virus.

    Tian-Cheng Li;Yoshio Yamakawa;Kenji Suzuki;Masashi Tatsumi

  • Phylogenetic analysis of the complete genome of 18 Norwalk-like viruses.

    Kazuhiko Katayama;Haruko Shirato-Horikoshi;Shigeyuki Kojima;Tsutomu Kageyama

  • Transfusion-transmitted hepatitis E caused by apparently indigenous hepatitis E virus strain in Hokkaido, Japan.

    Keiji Matsubayashi;Yasuhiro Nagaoka;Hidekatsu Sakata;Shinichiro Sato

  • Isolation and identification of a novel human parechovirus.

    Miyabi Ito;Teruo Yamashita;Hideaki Tsuzuki;Naokazu Takeda

  • Complete Nucleotide Sequence and Genetic Organization of Aichi Virus, a Distinct Member of the Picornaviridae Associated with Acute Gastroenteritis in Humans

    Teruo Yamashita;Kenji Sakae;Hideaki Tsuzuki;Yasumoto Suzuki

  • Biological and immunological characteristics of hepatitis E virus-like particles based on the crystal structure

    Tetsuo Yamashita;Yoshio Mori;Naoyuki Miyazaki;R. Holland Cheng

  • Detection of human sapovirus by real-time reverse transcription-polymerase chain reaction

    Tomoichiro Oka;Kazuhiko Katayama;Grant S. Hansman;Tsutomu Kageyama

  • Norovirus Infections in Symptomatic and Asymptomatic Food Handlers in Japan

    Kazuhiro Ozawa;Tomoichiro Oka;Naokazu Takeda;Grant S. Hansman

  • Molecular Diagnosis of Human Enteroviruses by Phylogeny-Based Classification by Use of the VP4 Sequence

    Hiroaki Ishiko;Yasushi Shimada;Mari Yonaha;Osamu Hashimoto

  • Virus-Specific mRNA Capping Enzyme Encoded by Hepatitis E Virus

    Julia Magden;Naokazu Takeda;Tiancheng Li;Petri Auvinen

  • Initiation of poliovirus plus-strand RNA synthesis in a membrane complex of infected HeLa cells.

    N Takeda;R J Kuhn;C F Yang;T Takegami

  • Genetic diversity of norovirus and sapovirus in hospitalized infants with sporadic cases of acute gastroenteritis in Chiang Mai, Thailand

    Grant S. Hansman;Kazuhiko Katayama;Niwat Maneekarn;Supatra Peerakome

  • Recombinant hepatitis E capsid protein self-assembles into a dual-domain T = 1 particle presenting native virus epitopes.

    Li Xing;Kenzo Kato;Tiancheng Li;Naokazu Takeda

  • Genetic and antigenic diversity among noroviruses.

    Grant S. Hansman;Katsuro Natori;Haruko Shirato-Horikoshi;Satoko Ogawa

  • Noroviruses Distinguish between Type 1 and Type 2 Histo-Blood Group Antigens for Binding

    Haruko Shirato;Satoko Ogawa;Hiromi Ito;Takashi Sato

  • Structure of Hepatitis E Virion-sized Particle Reveals an RNA-dependent Viral Assembly Pathway

    Li Xing;Li Xing;Tian Cheng Li;Naoyuki Mayazaki;Naoyuki Mayazaki;Martha N. Simon

Frequent Co-Authors

Tomoichiro Oka
Tomoichiro Oka National Institute of Infectious Diseases, Tokyo
Kazuhiko Katayama
Kazuhiko Katayama Kitasato University
Tatsuo Miyamura
Tatsuo Miyamura National Institutes of Health
Grant S. Hansman
Grant S. Hansman Griffith University
Takaji Wakita
Takaji Wakita National Institute of Infectious Diseases
Hiroaki Ishiko
Hiroaki Ishiko Mitsubishi Chemical (Japan)
Hiroshi Ushijima
Hiroshi Ushijima Nihon University
Yoshiharu Matsuura
Yoshiharu Matsuura Osaka University
Koki Taniguchi
Koki Taniguchi Fujita Health University
Mary K. Estes
Mary K. Estes Baylor College of Medicine

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