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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Immunology 59 3418 3150 137 125 410 13450

Masayuki Saijo publications per year

The chart shows the history of publications by Masayuki Saijo between 1991 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Masayuki Saijo published across 35 years, from 1991 to 2025, averaging 12.5 papers a year. Output peaked at 36 publications in 2021. 13 of the 439 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1991 to 2025. Vertical axis: number of publications, 0 to 36. Peak 36 publications in 2021. 1991: 2 publications 1992: 1 publication 1993: 3 publications 1994: 2 publications 1995: 5 publications 1996: 4 publications 1997: 4 publications 1998: 4 publications 1999: 3 publications 2000: 2 publications 2001: 5 publications 2002: 11 publications 2003: 7 publications 2004: 6 publications 2005: 14 publications 2006: 12 publications 2007: 15 publications 2008: 9 publications 2009: 12 publications 2010: 6 publications 2011: 11 publications 2012: 11 publications 2013: 20 publications 2014: 24 publications 2015: 17 publications 2016: 20 publications 2017: 28 publications 2018: 32 publications 2019: 34 publications 2020: 33 publications 2021: 36 publications 2022: 17 publications 2023: 16 publications 2024: 7 publications 2025: 6 publications
1991 2025

439 publications in total across all disciplines

View publications per year as a table
Masayuki Saijo: publications per year, 1991 to 2025
Year Publications
1991 2
1992 1
1993 3
1994 2
1995 5
1996 4
1997 4
1998 4
1999 3
2000 2
2001 5
2002 11
2003 7
2004 6
2005 14
2006 12
2007 15
2008 9
2009 12
2010 6
2011 11
2012 11
2013 20
2014 24
2015 17
2016 20
2017 28
2018 32
2019 34
2020 33
2021 36
2022 17
2023 16
2024 7
2025 6
Total 439
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Masayuki Saijo publication distribution in Immunology in 2026

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

No. of scientists
50 100 150
Bar chart with 76 bars. Horizontal axis: publications, 62–71 to 807+. Vertical axis: number of scientists, 0 to 189. Most scientists, 189, have 152–161 publications. The last bar groups every scientist with 807 publications or more. The highlighted bar, 402–411 publications, is where this scientist sits. 62–71 publications: 9 scientists 72–81 publications: 23 scientists 82–91 publications: 40 scientists 92–101 publications: 72 scientists 102–111 publications: 86 scientists 112–121 publications: 108 scientists 122–131 publications: 150 scientists 132–141 publications: 160 scientists 142–151 publications: 159 scientists 152–161 publications: 189 scientists 162–171 publications: 166 scientists 172–181 publications: 181 scientists 182–191 publications: 188 scientists 192–201 publications: 187 scientists 202–211 publications: 178 scientists 212–221 publications: 158 scientists 222–231 publications: 168 scientists 232–241 publications: 159 scientists 242–251 publications: 160 scientists 252–261 publications: 148 scientists 262–271 publications: 116 scientists 272–281 publications: 125 scientists 282–291 publications: 115 scientists 292–301 publications: 111 scientists 302–311 publications: 95 scientists 312–321 publications: 97 scientists 322–331 publications: 97 scientists 332–341 publications: 99 scientists 342–351 publications: 96 scientists 352–361 publications: 69 scientists 362–371 publications: 76 scientists 372–381 publications: 71 scientists 382–391 publications: 71 scientists 392–401 publications: 62 scientists 402–411 publications: 54 scientists 412–421 publications: 41 scientists 422–431 publications: 63 scientists 432–441 publications: 53 scientists 442–451 publications: 31 scientists 452–461 publications: 42 scientists 462–471 publications: 40 scientists 472–481 publications: 29 scientists 482–491 publications: 34 scientists 492–501 publications: 30 scientists 502–511 publications: 23 scientists 512–521 publications: 41 scientists 522–531 publications: 29 scientists 532–541 publications: 28 scientists 542–551 publications: 16 scientists 552–561 publications: 18 scientists 562–571 publications: 18 scientists 572–581 publications: 17 scientists 582–591 publications: 17 scientists 592–601 publications: 17 scientists 602–611 publications: 19 scientists 612–621 publications: 13 scientists 622–631 publications: 12 scientists 632–641 publications: 11 scientists 642–651 publications: 16 scientists 652–661 publications: 9 scientists 662–671 publications: 5 scientists 672–681 publications: 13 scientists 682–691 publications: 12 scientists 692–701 publications: 6 scientists 702–711 publications: 6 scientists 712–721 publications: 9 scientists 722–731 publications: 9 scientists 732–741 publications: 6 scientists 742–751 publications: 11 scientists 752–761 publications: 10 scientists 762–771 publications: 7 scientists 772–781 publications: 12 scientists 782–791 publications: 7 scientists 792–801 publications: 5 scientists 802–806 publications: 1 scientist 807+ publications: 100 scientists
62–71 publications 807+

This scientist: 410 publications — 82nd percentile

82% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 807 publications or more.

View publications distribution as a table
Number of Immunology scientists by publication count, Research.com 2026 ranking edition. Based on 4,929 ranked scientists.
Publications Scientists This scientist
62–71 9
72–81 23
82–91 40
92–101 72
102–111 86
112–121 108
122–131 150
132–141 160
142–151 159
152–161 189
162–171 166
172–181 181
182–191 188
192–201 187
202–211 178
212–221 158
222–231 168
232–241 159
242–251 160
252–261 148
262–271 116
272–281 125
282–291 115
292–301 111
302–311 95
312–321 97
322–331 97
332–341 99
342–351 96
352–361 69
362–371 76
372–381 71
382–391 71
392–401 62
402–411 54 410
412–421 41
422–431 63
432–441 53
442–451 31
452–461 42
462–471 40
472–481 29
482–491 34
492–501 30
502–511 23
512–521 41
522–531 29
532–541 28
542–551 16
552–561 18
562–571 18
572–581 17
582–591 17
592–601 17
602–611 19
612–621 13
622–631 12
632–641 11
642–651 16
652–661 9
662–671 5
672–681 13
682–691 12
692–701 6
702–711 6
712–721 9
722–731 9
732–741 6
742–751 11
752–761 10
762–771 7
772–781 12
782–791 7
792–801 5
802–806 1
807+ 100
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Masayuki Saijo D-index placement in Immunology in 2026

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

No. of scientists
50 100 150 200
Bar chart with 60 bars. Horizontal axis: D-Index, 40–41 to 157+. Vertical axis: number of scientists, 0 to 201. Most scientists, 201, have 58–59 D-Index. The last bar groups every scientist with 157 D-Index or more. The highlighted bar, 58–59 D-Index, is where this scientist sits. 40–41 D-Index: 28 scientists 42–43 D-Index: 91 scientists 44–45 D-Index: 157 scientists 46–47 D-Index: 192 scientists 48–49 D-Index: 175 scientists 50–51 D-Index: 188 scientists 52–53 D-Index: 177 scientists 54–55 D-Index: 155 scientists 56–57 D-Index: 194 scientists 58–59 D-Index: 201 scientists 60–61 D-Index: 197 scientists 62–63 D-Index: 201 scientists 64–65 D-Index: 173 scientists 66–67 D-Index: 167 scientists 68–69 D-Index: 172 scientists 70–71 D-Index: 199 scientists 72–73 D-Index: 184 scientists 74–75 D-Index: 133 scientists 76–77 D-Index: 163 scientists 78–79 D-Index: 127 scientists 80–81 D-Index: 121 scientists 82–83 D-Index: 125 scientists 84–85 D-Index: 121 scientists 86–87 D-Index: 102 scientists 88–89 D-Index: 96 scientists 90–91 D-Index: 75 scientists 92–93 D-Index: 72 scientists 94–95 D-Index: 74 scientists 96–97 D-Index: 66 scientists 98–99 D-Index: 68 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 60 scientists 104–105 D-Index: 54 scientists 106–107 D-Index: 36 scientists 108–109 D-Index: 23 scientists 110–111 D-Index: 52 scientists 112–113 D-Index: 41 scientists 114–115 D-Index: 34 scientists 116–117 D-Index: 25 scientists 118–119 D-Index: 28 scientists 120–121 D-Index: 11 scientists 122–123 D-Index: 20 scientists 124–125 D-Index: 27 scientists 126–127 D-Index: 19 scientists 128–129 D-Index: 20 scientists 130–131 D-Index: 16 scientists 132–133 D-Index: 17 scientists 134–135 D-Index: 14 scientists 136–137 D-Index: 15 scientists 138–139 D-Index: 9 scientists 140–141 D-Index: 11 scientists 142–143 D-Index: 9 scientists 144–145 D-Index: 9 scientists 146–147 D-Index: 7 scientists 148–149 D-Index: 7 scientists 150–151 D-Index: 7 scientists 152–153 D-Index: 5 scientists 154–155 D-Index: 8 scientists 156 D-Index: 6 scientists 157+ D-Index: 96 scientists
40–41 D-Index 157+

This scientist: 59 D-Index — 32nd percentile

32% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 157 D-Index or more.

View D-Index distribution as a table
Number of Immunology scientists by D-index, Research.com 2026 ranking edition. Based on 4,929 ranked scientists.
D-Index Scientists This scientist
40–41 28
42–43 91
44–45 157
46–47 192
48–49 175
50–51 188
52–53 177
54–55 155
56–57 194
58–59 201 59
60–61 197
62–63 201
64–65 173
66–67 167
68–69 172
70–71 199
72–73 184
74–75 133
76–77 163
78–79 127
80–81 121
82–83 125
84–85 121
86–87 102
88–89 96
90–91 75
92–93 72
94–95 74
96–97 66
98–99 68
100–101 49
102–103 60
104–105 54
106–107 36
108–109 23
110–111 52
112–113 41
114–115 34
116–117 25
118–119 28
120–121 11
122–123 20
124–125 27
126–127 19
128–129 20
130–131 16
132–133 17
134–135 14
136–137 15
138–139 9
140–141 11
142–143 9
144–145 9
146–147 7
148–149 7
150–151 7
152–153 5
154–155 8
156 6
157+ 96
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Overview

Masayuki Saijo is affiliated with the National Institute of Infectious Diseases in Tokyo, Japan. Their research primarily focuses on the field of Medicine, with a particular emphasis on Infectious Diseases, Public Health, Environmental and Occupational Health, Epidemiology, Ecology, Evolution, Behavior and Systematics, and Global and Planetary Change.

The subfields of study that define Saijo's work include:

  • Infectious Diseases
  • Public Health, Environmental and Occupational Health
  • Epidemiology
  • Ecology, Evolution, Behavior and Systematics
  • Global and Planetary Change

Main topics covered in Saijo's publications reflect a focus on viral infections and their vectors, outbreaks, and broader ecological impacts:

  • Viral Infections and Vectors
  • Viral Infections and Outbreaks Research
  • Mosquito-borne diseases and control
  • Vector-Borne Animal Diseases
  • Fire effects on ecosystems
  • SARS-CoV-2 and COVID-19 Research
  • Virology and Viral Diseases

Saijo's frequent publication venues include journals specializing in infectious diseases and virology. The most common venues are:

  • Viruses
  • PLoS Neglected Tropical Diseases
  • Emerging Infectious Diseases
  • Journal of Infection and Chemotherapy
  • Japanese Journal of Infectious Diseases

Frequent collaborators in Saijo's research work include the following coauthors:

  • Masayuki Shimojima (46 publications)
  • Tomoki Yoshikawa (43 publications)
  • Takeshi Kurosu (35 publications)
  • Shuetsu Fukushi (30 publications)
  • Tadaki Suzuki (25 publications)

Representative recent papers authored by Saijo cover topics ranging from antiviral drug research to epidemiologic studies of severe fever with thrombocytopenia syndrome (SFTS) and COVID-19 therapy:

  • "A Prospective, Randomized, Open-Label Trial of Early versus Late Favipiravir Therapy in Hospitalized Patients with COVID-19," 2020, Antimicrobial Agents and Chemotherapy
  • "Potential anti-COVID-19 agents, cepharanthine and nelfinavir, and their usage for combination treatment," 2021, iScience
  • "Severe Fever with Thrombocytopenia Syndrome, Japan, 2013-2017," 2020, Emerging Infectious Diseases
  • "Severe fever with thrombocytopenia syndrome virus targets B cells in lethal human infections," 2020, Journal of Clinical Investigation
  • "Antiviral Drugs Against Severe Fever With Thrombocytopenia Syndrome Virus Infection," 2020, Frontiers in Microbiology

Best Publications

  • The first identification and retrospective study of severe fever with thrombocytopenia syndrome in Japan

    Toru Takahashi;Ken Maeda;Tadaki Suzuki;Aki Ishido

  • Sensitive and Specific PCR Systems for Detection of Both Chinese and Japanese Severe Fever with Thrombocytopenia Syndrome Virus Strains and Prediction of Patient Survival Based on Viral Load

    Tomoki Yoshikawa;Shuetsu Fukushi;Hideki Tani;Aiko Fukuma

  • Phosphorylation of p38 MAPK and its downstream targets in SARS coronavirus-infected cells

    Tetsuya Mizutani;Shuetsu Fukushi;Masayuki Saijo;Ichiro Kurane

  • Vesicular stomatitis virus pseudotyped with severe acute respiratory syndrome coronavirus spike protein.

    Shuetsu Fukushi;Tetsuya Mizutani;Masayuki Saijo;Shutoku Matsuyama

  • Animal models for Ebola and Marburg virus infections.

    Eri Nakayama;Masayuki Saijo

  • Epidemiological and Clinical Features of Severe Fever with Thrombocytopenia Syndrome in Japan, 2013-2014.

    Hirofumi Kato;Hirofumi Kato;Takuya Yamagishi;Tomoe Shimada;Tamano Matsui

  • Severe Fever with Thrombocytopenia Syndrome, Japan, 2013-2017.

    Yusuke Kobayashi;Hirofumi Kato;Takuya Yamagishi;Tomoe Shimada

  • Phylogenetic and Geographic Relationships of Severe Fever With Thrombocytopenia Syndrome Virus in China, South Korea, and Japan

    Tomoki Yoshikawa;Masayuki Shimojima;Shuetsu Fukushi;Hideki Tani

  • Efficacy of T-705 (Favipiravir) in the Treatment of Infections with Lethal Severe Fever with Thrombocytopenia Syndrome Virus

    Hideki Tani;Aiko Fukuma;Shuetsu Fukushi;Satoshi Taniguchi

  • Lethal Canine Distemper Virus Outbreak in Cynomolgus Monkeys in Japan in 2008

    Kouji Sakai;Noriyo Nagata;Yasushi Ami;Fumio Seki

  • Potential anti-COVID-19 agents, Cepharanthine and Nelfinavir, and their usage for combination treatment.

    Hirofumi Ohashi;Hirofumi Ohashi;Koichi Watashi;Wakana Saso;Wakana Saso;Kaho Shionoya;Kaho Shionoya

  • Protective Efficacy of Neutralizing Monoclonal Antibodies in a Nonhuman Primate Model of Ebola Hemorrhagic Fever

    Andrea Marzi;Reiko Yoshida;Hiroko Miyamoto;Mari Ishijima

  • LC16m8, a Highly Attenuated Vaccinia Virus Vaccine Lacking Expression of the Membrane Protein B5R, Protects Monkeys from Monkeypox

    Masayuki Saijo;Yasushi Ami;Yuriko Suzaki;Noriyo Nagata

  • Chimeric recombinant hepatitis E virus-like particles as an oral vaccine vehicle presenting foreign epitopes.

    Masahiro Niikura;Shiki Takamura;Gisen Kim;Satoru Kawai

  • Enzyme-Linked Immunosorbent Assay for Detection of Filovirus Species-Specific Antibodies

    Eri Nakayama;Ayaka Yokoyama;Hiroko Miyamoto;Manabu Igarashi

  • Reston Ebolavirus antibodies in bats, the Philippines.

    Satoshi Taniguchi;Satoshi Taniguchi;Shumpei Watanabe;Shumpei Watanabe;Joseph S. Masangkay;Tsutomu Omatsu

  • Recombinant Nucleoprotein-Based Enzyme-Linked Immunosorbent Assay for Detection of Immunoglobulin G Antibodies to Crimean-Congo Hemorrhagic Fever Virus

    Masayuki Saijo;Tang Qing;Masahiro Niikura;Akihiko Maeda

  • An Attenuated LC16m8 Smallpox Vaccine: Analysis of Full-Genome Sequence and Induction of Immune Protection

    Shigeru Morikawa;Tokuki Sakiyama;Hideki Hasegawa;Masayuki Saijo

  • JNK and PI3k/Akt signaling pathways are required for establishing persistent SARS-CoV infection in Vero E6 cells

    Tetsuya Mizutani;Shuetsu Fukushi;Masayuki Saijo;Ichiro Kurane

  • Immunofluorescence Technique Using HeLa Cells Expressing Recombinant Nucleoprotein for Detection of Immunoglobulin G Antibodies to Crimean-Congo Hemorrhagic Fever Virus

    Masayuki Saijo;Tang Qing;Masahiro Niikura;Akihiko Maeda

  • Mouse-passaged severe acute respiratory syndrome-associated coronavirus leads to lethal pulmonary edema and diffuse alveolar damage in adult but not young mice.

    Noriyo Nagata;Naoko Iwata;Hideki Hasegawa;Shuetsu Fukushi

  • Detection of Ebola Viral Antigen by Enzyme-Linked Immunosorbent Assay Using a Novel Monoclonal Antibody to Nucleoprotein

    Masahiro Niikura;Tetsuro Ikegami;Masayuki Saijo;Ichiro Kurane

  • Severe Fever With Thrombocytopenia Syndrome Virus Targets B Cells in Lethal Human Infections

    Tadaki Suzuki;Yuko Sato;Kaori Sano;Takeshi Arashiro

Frequent Co-Authors

Shigeru Morikawa
Shigeru Morikawa National Institutes of Health
Ichiro Kurane
Ichiro Kurane National Institutes of Health
Masayuki Shimojima
Masayuki Shimojima National Institutes of Health
Tetsuya Mizutani
Tetsuya Mizutani Tokyo University of Agriculture and Technology
Noriyo Nagata
Noriyo Nagata National Institutes of Health
Hideki Hasegawa
Hideki Hasegawa National Institutes of Health
Tadaki Suzuki
Tadaki Suzuki National Institutes of Health
Tetsutaro Sata
Tetsutaro Sata National Institute of Infectious Diseases
Kazunori Oishi
Kazunori Oishi National Institutes of Health
Hideki Hasegawa
Hideki Hasegawa Hokkaido University

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