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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Immunology 54 3888 3586 1781 1630 188 10740

Sanjay Ram publications per year

The chart shows the history of publications by Sanjay Ram between 1995 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Sanjay Ram published across 31 years, from 1995 to 2025, averaging 7.5 papers a year. Output peaked at 23 publications in 2019. 13 of the 232 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1995 to 2025. Vertical axis: number of publications, 0 to 23. Peak 23 publications in 2019. 1995: 3 publications 1996: 0 publications 1997: 0 publications 1998: 6 publications 1999: 3 publications 2000: 4 publications 2001: 4 publications 2002: 1 publication 2003: 3 publications 2004: 0 publications 2005: 4 publications 2006: 4 publications 2007: 14 publications 2008: 12 publications 2009: 5 publications 2010: 12 publications 2011: 9 publications 2012: 10 publications 2013: 7 publications 2014: 9 publications 2015: 9 publications 2016: 6 publications 2017: 6 publications 2018: 15 publications 2019: 23 publications 2020: 10 publications 2021: 12 publications 2022: 7 publications 2023: 21 publications 2024: 5 publications 2025: 8 publications
1995 2025

232 publications in total across all disciplines

View publications per year as a table
Sanjay Ram: publications per year, 1995 to 2025
Year Publications
1995 3
1996 0
1997 0
1998 6
1999 3
2000 4
2001 4
2002 1
2003 3
2004 0
2005 4
2006 4
2007 14
2008 12
2009 5
2010 12
2011 9
2012 10
2013 7
2014 9
2015 9
2016 6
2017 6
2018 15
2019 23
2020 10
2021 12
2022 7
2023 21
2024 5
2025 8
Total 232
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Sanjay Ram 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 Sanjay Ram 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, 182–191 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: 188 publications — 30th percentile

30% 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
182–191 188 188
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
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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Sanjay Ram 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 Sanjay Ram 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, 54–55 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: 54 D-Index — 22nd percentile

22% 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 54
56–57 194
58–59 201
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

Sanjay Ram is affiliated with the University of Massachusetts Chan Medical School in the United States. Their research primarily focuses on immunology and microbiology, with notable contributions to related subfields such as microbiology, immunology, epidemiology, hematology, and public health, environmental and occupational health.

Their research covers a range of topics including reproductive tract infections research, bacterial infections and vaccines, the complement system in diseases, syphilis diagnosis and treatment, blood groups and transfusion, monoclonal and polyclonal antibodies research, and transgenic plants and applications.

Among recent notable publications are:

  • "The Modern Epidemic of Syphilis," 2020, New England Journal of Medicine
  • "Overcoming innate immune barriers that impede AAV gene therapy vectors," 2021, Journal of Clinical Investigation
  • "Mechanisms Driving Neutrophil-Induced T-cell Immunoparalysis in Ovarian Cancer," 2021, Cancer Immunology Research
  • "Complement interactions with the pathogenic Neisseriae: clinical features, deficiency states, and evasion mechanisms," 2020, FEBS Letters
  • "The "Black Fungus" in India: The Emerging Syndemic of COVID-19-Associated Mucormycosis," 2021, Annals of Internal Medicine

Sanjay Ram collaborates frequently with researchers such as Sunita Gulati, Jutamas Shaughnessy, Peter A. Rice, Bo Zheng, and Lisa A. Lewis. These partnerships have resulted in multiple joint publications.

Their work has been published repeatedly in several venues, including Frontiers in Immunology, The Journal of Infectious Diseases, bioRxiv (Cold Spring Harbor Laboratory), mBio, and Blood.

Best Publications

  • The new multicomponent vaccine against meningococcal serogroup B, 4CMenB: immunological, functional and structural characterization of the antigens.

    Davide Serruto;Matthew J. Bottomley;Sanjay Ram;Marzia M. Giuliani

  • Infections of People with Complement Deficiencies and Patients Who Have Undergone Splenectomy

    Sanjay Ram;Lisa A. Lewis;Peter A. Rice

  • The Meningococcal Vaccine Candidate GNA1870 Binds the Complement Regulatory Protein Factor H and Enhances Serum Resistance

    Guillermo Madico;Jo Anne Welsch;Lisa A. Lewis;Anne McNaughton

  • Meningococcal disease and the complement system

    Lisa A Lewis;Sanjay Ram

  • Neisseria meningitidis GNA2132, a heparin-binding protein that induces protective immunity in humans

    Davide Serruto;Tiziana Spadafina;Laura Ciucchi;Lisa A. Lewis

  • Binding of Complement Factor H (fH) to Neisseria meningitidis Is Specific for Human fH and Inhibits Complement Activation by Rat and Rabbit Sera

    Dan M. Granoff;Jo Anne Welsch;Sanjay Ram

  • The Meningococcal Vaccine Candidate Neisserial Surface Protein A (NspA) Binds to Factor H and Enhances Meningococcal Resistance to Complement

    Lisa A. Lewis;Jutamas Ngampasutadol;Ruth Wallace;Jane E. A. Reid

  • The role of porins in neisserial pathogenesis and immunity.

    Paola Massari;Sanjay Ram;Heather Macleod;Lee M. Wetzler

  • Interactions between Neisseria meningitidis and the complement system

    Muriel C. Schneider;Rachel M. Exley;Sanjay Ram;Robert B. Sim

  • Neisseria gonorrhoeae: Drug Resistance, Mouse Models, and Vaccine Development.

    Peter A Rice;William M Shafer;Sanjay Ram;Ann E Jerse

  • Complement-dependent synergistic bactericidal activity of antibodies against factor H-binding protein, a sparsely distributed meningococcal vaccine antigen.

    Jo Anne Welsch;Sanjay Ram;Oliver Koeberling;Dan M Granoff

  • The contrasting mechanisms of serum resistance of Neisseria gonorrhoeae and group B Neisseria meningitidis.

    S Ram;F.G Mackinnon;S Gulati;D.P McQuillen

  • Overcoming innate immune barriers that impede AAV gene therapy vectors.

    Manish Muhuri;Yukiko Maeda;Hong Ma;Sanjay Ram

  • Human Factor H Interacts Selectively with Neisseria gonorrhoeae and Results in Species-Specific Complement Evasion

    Jutamas Ngampasutadol;Sanjay Ram;Sunita Gulati;Sarika Agarwal

  • Phosphoethanolamine Substitution of Lipid A and Resistance of Neisseria gonorrhoeae to Cationic Antimicrobial Peptides and Complement-Mediated Killing by Normal Human Serum

    Lisa A. Lewis;Biswa Choudhury;Jacqueline T. Balthazar;Larry E. Martin;Larry E. Martin

  • Binding of the complement inhibitor C4bp to serogroup B Neisseria meningitidis

    Hanna Jarva;Sanjay Ram;Ulrich Vogel;Anna M. Blom

  • A Meningococcal Factor H Binding Protein Mutant That Eliminates Factor H Binding Enhances Protective Antibody Responses to Vaccination

    Peter T. Beernink;Jutamas Shaughnessy;Emily M. Braga;Qin Liu

  • The Lip Lipoprotein from Neisseria gonorrhoeae Stimulates Cytokine Release and NF-κB Activation in Epithelial Cells in a Toll-like Receptor 2-dependent Manner

    Philip L. Fisette;Sanjay Ram;Jorunn M. Andersen;Wen Guo

  • Mature neutrophils suppress T cell immunity in ovarian cancer microenvironment.

    Kelly L. Singel;Tiffany R. Emmons;Anm Nazmul H. Khan;Paul C. Mayor

  • Relative Contributions of Dectin-1 and Complement to Immune Responses to Particulate β-Glucans

    Haibin Huang;Gary R. Ostroff;Chrono K. Lee;Sarika Agarwal

  • Binding of vitronectin by the Moraxella catarrhalis UspA2 protein interferes with late stages of the complement cascade.

    Ahmed S. Attia;Sanjay Ram;Peter A. Rice;Eric J. Hansen

  • Binding of complement factor H to loop 5 of porin protein 1A: A molecular mechanism of serum resistance of non-sialylated Neisseria gonorrhoeae

    Sanjay Ram;Daniel P. McQuillen;Sunita Gulati;Christopher Elkins

Frequent Co-Authors

Peter A. Rice
Peter A. Rice University of Massachusetts Chan Medical School
Anna M. Blom
Anna M. Blom Lund University
Dan M. Granoff
Dan M. Granoff UCSF Benioff Children's Hospital
George W. Reed
George W. Reed University of Massachusetts Chan Medical School
Ulrich Vogel
Ulrich Vogel University of Würzburg
Ajit Varki
Ajit Varki University of California, San Diego
William M. Shafer
William M. Shafer Emory University
Stuart M. Levitz
Stuart M. Levitz University of Massachusetts Chan Medical School
Matthias Mörgelin
Matthias Mörgelin Lund University
Lars Björck
Lars Björck Lund University

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