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D-Index & Metrics

Biology and Biochemistry

D-Index
55
Citations
9202
World Ranking
15221
National Ranking
6364

Giovanni Widmer publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Giovanni Widmer sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 151 publications — 27th percentile

27% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Giovanni Widmer D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Giovanni Widmer sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 55 D-Index — 25th percentile

25% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Overview

Giovanni Widmer is affiliated with Tufts University in the United States and has a substantial body of research primarily in the fields of Medicine and Immunology and Microbiology.

The scientist's work spans several subfields, including:

  • Infectious Diseases
  • Parasitology
  • Molecular Biology
  • Gastroenterology
  • Microbiology

Giovanni Widmer's main research topics cover:

  • Parasitic Infections and Diagnostics
  • Gut microbiota and health
  • Clostridium difficile and Clostridium perfringens research
  • Amoebic Infections and Treatments
  • Gastrointestinal motility and disorders
  • Reproductive tract infections research
  • Biosensors and Analytical Detection

Frequent coauthors in Widmer's research include:

  • Bruno César Miranda Oliveira
  • Sameer Sonkusale
  • Débora Regina Romualdo da Silva
  • Saul Tzipori
  • Kátia Denise Saraiva Bresciani

Widmer has published multiple papers in respected venues, with recurring publication platforms including:

  • PLoS ONE
  • Scientific Reports
  • Microorganisms
  • Cryobiology
  • Veterinary Sciences

Selected recent publications reflect Widmer's research interests and include:

  • "Cryptosporidium hominis infections in non-human animal species: revisiting the concept of host specificity," 2020, International Journal for Parasitology
  • "Update on Cryptosporidium spp.: highlights from the Seventh International Giardia and Cryptosporidium Conference," 2020, Parasite
  • "The fecal microbiota of wild and captive raptors," 2020, Animal Microbiome

Other notable papers coauthored related to fecal microbial transplantation and microbiota in horses include:

  • "Assessment of clinical and microbiota responses to fecal microbial transplantation in adult horses with diarrhea," 2021, PLoS ONE
  • "The fecal microbiota of healthy donor horses and geriatric recipients undergoing fecal microbial transplantation for the treatment of diarrhea," 2020, PLoS ONE

Best Publications

  • Complete genome sequence of the apicomplexan, Cryptosporidium parvum.

    Mitchell S. Abrahamsen;Thomas J. Templeton;Shinichiro Enomoto;Juan E. Abrahante

  • The genome of Cryptosporidium hominis

    Ping Xu;Giovanni Widmer;Yingping Wang;Luiz S. Ozaki

  • Cryptosporidium hominis: experimental challenge of healthy adults.

    Cynthia L. Chappell;Pablo C. Okhuysen;Rebecca Langer-Curry;Giovanni Widmer

  • Cryptosporidium parvum in children with diarrhea in Mulago Hospital, Kampala, Uganda.

    James K. Tumwine;Addy Kekitiinwa;Nicolette Nabukeera;Donna E. Akiyoshi

  • A pig model of the human gastrointestinal tract

    Quanshun Zhang;Giovanni Widmer;Saul Tzipori

  • A hundred-year retrospective on cryptosporidiosis

    Saul Tzipori;Giovanni Widmer

  • Evaluation of an animal model system for cryptosporidiosis: therapeutic efficacy of paromomycin and hyperimmune bovine colostrum-immunoglobulin.

    S Tzipori;W Rand;J Griffiths;G Widmer

  • Identification of genetic heterogeneity in the Cryptosporidium parvum ribosomal repeat.

    M Carraway;S Tzipori;G Widmer

  • Genotypic and Phenotypic Characterization of Cryptosporidium parvum Isolates from People with AIDS

    G. Widmer;S. Tzipori;C. J. Fichtenbaum;J. K. Griffiths

  • Multilocus Genotypic Analysis of Cryptosporidium parvum Isolates from Different Hosts and Geographical Origins

    Furio Spano;Lorenza Putignani;Andrea Crisanti;Andrea Crisanti;Pina Sallicandro

  • A new restriction fragment length polymorphism from Cryptosporidium parvum identifies genetically heterogeneous parasite populations and genotypic changes following transmission from bovine to human hosts

    Margaretha Carraway;Saul Tzipori;Giovanni Widmer

  • Animal propagation and genomic survey of a genotype 1 isolate of Cryptosporidium parvum

    G Widmer;D Akiyoshi;M.A Buckholt;X Feng

  • Infectivity of a Cryptosporidium parvum Isolate of Cervine Origin for Healthy Adults and Interferon-γ Knockout Mice

    Pablo C. Okhuysen;Stephen M. Rich;Cynthia L. Chappell;Kevin A. Grimes

  • Genetic Analysis of a Cryptosporidium parvum Human Genotype 1 Isolate Passaged through Different Host Species

    D. E. Akiyoshi;X. Feng;M. A. Buckholt;G. Widmer

  • Detection and Genotyping of Oocysts of Cryptosporidium parvum by Real-Time PCR and Melting Curve Analysis

    Sultan Tanrıverdi;Atila Tanyeli;Fikri Başlamışlı;Fatih Köksal

  • Continuous culture of Cryptosporidium parvum using hollow fiber technology

    Mary Morada;Sangun Lee;Leslie Gunther-Cummins;Louis M. Weiss

  • Genetic Heterogeneity and PCR Detection of Cryptosporidium parvum

    Giovanni Widmer

  • Survey and genetic characterization of wastewater in Tunisia for Cryptosporidium spp., Giardia duodenalis, Enterocytozoon bieneusi, Cyclospora cayetanensis and Eimeria spp.

    Layla Ben Ayed;Wenli Yang;Giovanni Widmer;Vitaliano Cama

  • Identification of genotypically mixed Cryptosporidium parvum populations in humans and calves.

    Sultan Tanriverdi;M.Özkan Arslan;Donna E Akiyoshi;Saul Tzipori

  • Genomics and population biology of Cryptosporidium species.

    G. Widmer;S. Sullivan

Frequent Co-Authors

Saul Tzipori
Saul Tzipori Tufts University
Simone M. Cacciò
Simone M. Cacciò Istituto Superiore di Sanità
Rachel M. Chalmers
Rachel M. Chalmers Singleton Hospital
Gregory A. Buck
Gregory A. Buck Virginia Commonwealth University
Mehmet Toner
Mehmet Toner Harvard University
Lihua Xiao
Lihua Xiao South China Agricultural University
Vivek Kapur
Vivek Kapur Pennsylvania State University
Pablo C. Okhuysen
Pablo C. Okhuysen The University of Texas MD Anderson Cancer Center
Jessica C. Kissinger
Jessica C. Kissinger University of Georgia
Andrea Crisanti
Andrea Crisanti University of Padua

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