2026 Giovanni Widmer: Biology and Biochemistry Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Biology and Biochemistry	55	15221	13980	6364	5691	151	9202

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

1272
Citations
The genome of Cryptosporidium hominis

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

696
Citations
Cryptosporidium hominis: experimental challenge of healthy adults.

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

290
Citations
Cryptosporidium parvum in children with diarrhea in Mulago Hospital, Kampala, Uganda.

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

254
Citations
A pig model of the human gastrointestinal tract

Quanshun Zhang;Giovanni Widmer;Saul Tzipori

254
Citations
A hundred-year retrospective on cryptosporidiosis

Saul Tzipori;Giovanni Widmer

223
Citations
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

162
Citations
Identification of genetic heterogeneity in the Cryptosporidium parvum ribosomal repeat.

M Carraway;S Tzipori;G Widmer

158
Citations
Genotypic and Phenotypic Characterization of Cryptosporidium parvum Isolates from People with AIDS

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

157
Citations
Multilocus Genotypic Analysis of Cryptosporidium parvum Isolates from Different Hosts and Geographical Origins

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

157
Citations
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

130
Citations
Animal propagation and genomic survey of a genotype 1 isolate of Cryptosporidium parvum

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

129
Citations
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

128
Citations
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

126
Citations
Detection and Genotyping of Oocysts of Cryptosporidium parvum by Real-Time PCR and Melting Curve Analysis

Sultan Tanrıverdi;Atila Tanyeli;Fikri Başlamışlı;Fatih Köksal

123
Citations
Continuous culture of Cryptosporidium parvum using hollow fiber technology

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

120
Citations
Genetic Heterogeneity and PCR Detection of Cryptosporidium parvum

Giovanni Widmer

111
Citations
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

106
Citations
Identification of genotypically mixed Cryptosporidium parvum populations in humans and calves.

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

106
Citations
Genomics and population biology of Cryptosporidium species.

G. Widmer;S. Sullivan

105
Citations