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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Immunology 63 3080 2836 1442 1319 208 10363

Karel A. Schat publications per year

The chart shows the history of publications by Karel A. Schat between 1972 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Karel A. Schat published across 54 years, from 1972 to 2025, averaging 3.9 papers a year. Output peaked at 8 publications in 1991. 2 of the 213 publications appeared in the last two years.

No. of publications
2 4 6 8
Bar chart. Horizontal axis: year, 1972 to 2025. Vertical axis: number of publications, 0 to 8. Peak 8 publications in 1991. 1972: 2 publications 1973: 0 publications 1974: 1 publication 1975: 0 publications 1976: 1 publication 1977: 1 publication 1978: 7 publications 1979: 2 publications 1980: 1 publication 1981: 7 publications 1982: 7 publications 1983: 2 publications 1984: 4 publications 1985: 3 publications 1986: 6 publications 1987: 2 publications 1988: 2 publications 1989: 7 publications 1990: 3 publications 1991: 8 publications 1992: 3 publications 1993: 8 publications 1994: 7 publications 1995: 3 publications 1996: 2 publications 1997: 2 publications 1998: 4 publications 1999: 2 publications 2000: 7 publications 2001: 4 publications 2002: 6 publications 2003: 5 publications 2004: 5 publications 2005: 7 publications 2006: 2 publications 2007: 6 publications 2008: 7 publications 2009: 8 publications 2010: 7 publications 2011: 5 publications 2012: 5 publications 2013: 8 publications 2014: 7 publications 2015: 0 publications 2016: 2 publications 2017: 1 publication 2018: 5 publications 2019: 3 publications 2020: 2 publications 2021: 4 publications 2022: 7 publications 2023: 1 publication 2024: 0 publications 2025: 2 publications
1972 2025

213 publications in total across all disciplines

View publications per year as a table
Karel A. Schat: publications per year, 1972 to 2025
Year Publications
1972 2
1973 0
1974 1
1975 0
1976 1
1977 1
1978 7
1979 2
1980 1
1981 7
1982 7
1983 2
1984 4
1985 3
1986 6
1987 2
1988 2
1989 7
1990 3
1991 8
1992 3
1993 8
1994 7
1995 3
1996 2
1997 2
1998 4
1999 2
2000 7
2001 4
2002 6
2003 5
2004 5
2005 7
2006 2
2007 6
2008 7
2009 8
2010 7
2011 5
2012 5
2013 8
2014 7
2015 0
2016 2
2017 1
2018 5
2019 3
2020 2
2021 4
2022 7
2023 1
2024 0
2025 2
Total 213
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Karel A. Schat 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 Karel A. Schat 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, 202–211 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: 208 publications — 37th percentile

37% 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
202–211 178 208
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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Karel A. Schat 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 Karel A. Schat 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, 62–63 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: 63 D-Index — 40th percentile

40% 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
60–61 197
62–63 201 63
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

Karel A. Schat is affiliated with Cornell University in the United States and conducts research primarily within the fields of Medicine, Biochemistry, Genetics and Molecular Biology, and Agricultural and Biological Sciences. Their work spans several interconnected subfields including Molecular Biology, Epidemiology, Immunology, Animal Science and Zoology, and Genetics.

The scientist's research focus centers on topics related to CRISPR and Genetic Engineering, Herpesvirus Infections and Treatments, RNA and protein synthesis mechanisms, Cytomegalovirus and herpesvirus research, Animal Virus Infections Studies, Animal Disease Management and Epidemiology, and Immune Response and Inflammation.

Several recent papers authored or co-authored by Karel A. Schat illustrate their engagement in these domains. Among these publications are:

  • "Germline engineering of the chicken genome using CRISPR/Cas9 by in vivo transfection of PGCs" (2020), Animal Biotechnology
  • "In Vivo Inhibition of Marek's Disease Virus in Transgenic Chickens Expressing Cas9 and gRNA against ICP4" (2021), Microorganisms
  • "In Vitro Inhibition of Influenza Virus Using CRISPR/Cas13a in Chicken Cells" (2021), Methods and Protocols
  • "The Importance of the Bursa of Fabricius, B Cells and T Cells for the Pathogenesis of Marek's Disease: A Review" (2022), Viruses
  • "Primary Chicken and Duck Endothelial Cells Display a Differential Response to Infection with Highly Pathogenic Avian Influenza Virus" (2021), Genes

The scientist frequently collaborates with colleagues such as Arjun Challagulla, Timothy J. Doran, Bernd Kaspers, Kristie A. Jenkins, and Terri E. O'Neil. These collaborations are reflected in multiple joint publications that further define the scope and impact of their research.

Karel A. Schat has contributed to publications in several key scientific journals, including Avian Diseases, Functional & Integrative Genomics, Animal Biotechnology, Microorganisms, and Methods and Protocols.

Best Publications

  • Characterisation of two highly oncogenic strains of Marek's disease virus 1 2

    K.A. Schat;B.W. Calnek;J. Fabricant

  • Classification of Marek's disease viruses according to pathotype: philosophy and methodology.

    R. L. Witter;B. W. Calnek;Celina Buscaglia;I. M. Gimeno

  • Transformation of T-lymphocyte subsets by Marek's disease herpesvirus.

    K. A. Schat;C.-L. H. Chen;B. W. Calnek;D. Char

  • Expression of cytokine genes in Marek's disease virus-infected chickens and chicken embryo fibroblast cultures.

    Z. Xing;K. A. Schat

  • Further characterization of marek's disease virus‐infected lymphocytes. II. In vitro infection

    B. W. Calnek;K. A. Schat;L. J. N. Ross;C-L. H. Chen

  • Inhibitory Effects of Nitric Oxide and Gamma Interferon on In Vitro and In Vivo Replication of Marek's Disease Virus

    Zheng Xing;Karel A. Schat

  • A hypervariable region in VP1 of chicken infectious anemia virus mediates rate of spread and cell tropism in tissue culture.

    R W Renshaw;C Soiné;T Weinkle;P H O'Connell

  • Specific and nonspecific immune responses to Marek’s disease virus

    Karel A. Schat;Zheng Xing

  • Reproductive effort reduces long-term immune function in breeding tree swallows (Tachycineta bicolor)

    Daniel R. Ardia;Karel A. Schat;David W. Winkler

  • Relationship Between the Immunosuppressive Potential and the Pathotype of Marek's Disease Virus Isolates

    Calnek Bw;Harris Rw;Buscaglia C;Schat Ka

  • Infection with chicken anaemia virus impairs the generation of pathogen‐specific cytotoxic T lymphocytes

    Carrie J Markowski-Grimsrud;Karel A Schat

  • Chicken Anemia Virus

    K. A. Schat

  • Attenuation of Marek's Disease Virus by Deletion of Open Reading Frame RLORF4 but Not RLORF5a

    Keith W. Jarosinski;Nikolaus Osterrieder;Venugopal K. Nair;Karel A. Schat

  • Role of position 627 of PB2 and the multibasic cleavage site of the hemagglutinin in the virulence of H5N1 avian influenza virus in chickens and ducks.

    Karel A Schat;John Bingham;Jeff M. Butler;Li Mei Chen

  • Detection of Duck Enteritis Virus by Polymerase Chain Reaction

    Paul J. Plummer;Tim Alefantis;Steven Kaplan;Priscilla O'Connell

  • Field trials with a bivalent vaccine (HVT and SB-1) against Marek's disease.

    B W Calnek;K A Schat;M C Peckham;J Fabricant

  • Syngeneic Marek's disease virus (MDV)-specific cell-mediated immune responses against immediate early, late, and unique MDV proteins.

    Abdul R. Omar;Karel A. Schat

  • Characterization of Chicken Thrombocyte Responses to Toll-Like Receptor Ligands

    Michael St. Paul;Sarah Paolucci;Neda Barjesteh;R. Darren Wood

  • Pro-inflammatory responses in chicken spleen and brain tissues after infection with very virulent plus Marek's disease virus.

    Keith W. Jarosinski;Bradley L. Njaa;Priscilla H. O'connell;Karel A. Schat

  • Virus-Induced Immunosuppression in Chickens

    I. M. Gimeno;K. A. Schat

  • Establishment of marek's disease lymphoblastoid cell lines from transplantable versus primary lymphomas

    B. W. Calnek;K. K. Murthy;K. A. Schat

  • Influence of Oncogenicity of Marek’s Disease Virus on Evaluation of Genetic Resistance

    K. A. Schat;B. W. Calnek;J. Fabricant;H. Abplanalp

Frequent Co-Authors

John W. Lowenthal
John W. Lowenthal Commonwealth Scientific and Industrial Research Organisation
André A. Dhondt
André A. Dhondt Cornell University
Dana M. Hawley
Dana M. Hawley Virginia Tech
Ynte H. Schukken
Ynte H. Schukken Wageningen University & Research
David H. Ley
David H. Ley North Carolina State University
Barry Slobedman
Barry Slobedman University of Sydney
Bernd Kaspers
Bernd Kaspers Ludwig-Maximilians-Universität München
Peter J. Walker
Peter J. Walker University of Queensland
Shayan Sharif
Shayan Sharif University of Guelph
Michael A. Skinner
Michael A. Skinner Imperial College London

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