World's Best Scientists 2026 revealed!
Award Badge
Animal Science and Veterinary
USA
2025

D-Index & Metrics

Animal Science and Veterinary

D-Index
93
Citations
36345
World Ranking
25
National Ranking
9

Microbiology

D-Index
92
Citations
35952
World Ranking
615
National Ranking
286

Research.com Recognitions

  • 2025 - Research.com Animal Science and Veterinary in United States Leader Award
  • 2023 - Research.com Animal Science and Veterinary in United States Leader Award
  • 2022 - Research.com Animal Science and Veterinary in United States Leader Award

Overview

Ronald Fayer is affiliated with the United States Department of Agriculture in the United States. Their research spans the fields of Immunology and Microbiology, as well as Medicine, with a particular focus on Parasitology and Infectious Diseases as subfields of study.

The main topics addressed in their work include Parasitic Infections and Diagnostics and Amoebic Infections and Treatments.

The scientist has contributed to the scholarly literature with publications in venues such as the International Journal for Parasitology.

  • Taxonomy and molecular epidemiology of Cryptosporidium and Giardia - a 50 year perspective (1971-2021), 2021, International Journal for Parasitology

Their frequent coauthors include:

  • Una Ryan
  • Yaoyu Feng
  • Lihua Xiao

Best Publications

  • CRYPTOSPORIDIUM SPP. AND CRYPTOSPORIDIOSIS

    R. Fayer;B. L. P. Ungar

  • Cryptosporidium Taxonomy: Recent Advances and Implications for Public Health

    Lihua Xiao;Ronald Fayer;Una Ryan;Steve J. Upton

  • Epidemiology of Cryptosporidium: transmission, detection and identification.

    Ronald Fayer;Una Morgan;Steve J Upton

  • A review of the global burden, novel diagnostics, therapeutics, and vaccine targets for cryptosporidium

    William Checkley;William Checkley;A. Clinton White;Devan Jaganath;Michael J. Arrowood

  • Sarcocystosis of animals and man

    J. P. Dubey;R. Calero-Bernal;B.M. Rosenthal;C.A. Speer

  • Phylogenetic Analysis of Cryptosporidium Parasites Based on the Small-Subunit rRNA Gene Locus

    Lihua Xiao;Lillian Escalante;Chunfu Yang;Irshad Sulaiman

  • Triosephosphate Isomerase Gene Characterization and Potential Zoonotic Transmission of Giardia duodenalis

    Irshad M. Sulaiman;Ronald Fayer;Caryn Bern;Robert H. Gilman

  • Cryptosporidium: a water-borne zoonotic parasite

    Ronald Fayer

  • Cryptosporidium species in humans and animals: current understanding and research needs

    Una Ryan;Ronald Fayer;Lihua Xiao

  • Molecular characterisation of species and genotypes of Cryptosporidium and Giardia and assessment of zoonotic transmission

    Lihua Xiao;Ronald Fayer

  • GENETIC DIVERSITY WITHIN CRYPTOSPORIDIUM PARVUM AND RELATED CRYPTOSPORIDIUM SPECIES

    Lihua Xiao;Una M. Morgan;Josef Limor;Ananias Escalante

  • Prevalence and age-related variation of Cryptosporidium species and genotypes in dairy calves.

    Mónica Santı́n;James M Trout;Lihua Xiao;Ling Zhou

  • Cryptosporidium hominis n. sp. (Apicomplexa: Cryptosporidiidae) from Homo sapiens

    Una M. Morgan-Ryan;Abbie Fall;Lucy A. Ward;Nawal Hijjawi

  • Taxonomy and species delimitation in Cryptosporidium.

    Ronald Fayer

  • Zoonotic protozoa: from land to sea

    Ronald Fayer;Jitender P. Dubey;David S. Lindsay

  • Cryptosporidiosis of Man and Animals

    J. P. Dubey;C. A. Speer;R. Fayer

  • Sarcocystis spp. in Human Infections

    Ronald Fayer

  • Wide geographic distribution of Cryptosporidium bovis and the deer-like genotype in bovines.

    Yaoyu Feng;Ynes Ortega;Guosheng He;Pradeep Das

  • Host adaptation and host-parasite co-evolution in Cryptosporidium: implications for taxonomy and public health.

    Lihua Xiao;Irshad M Sulaiman;Una M Ryan;Ling Zhou

  • Microsporidiosis: Enterocytozoon bieneusi in domesticated and wild animals.

    Mónica Santín;Ronald Fayer

  • Prevalence of species and genotypes of Cryptosporidium found in 1-2-year-old dairy cattle in the eastern United States.

    Ronald Fayer;Mónica Santín;James M. Trout;Ellis Greiner

  • General biology of Cryptosporidium.

    R. Fayer;C. A. Speer;J. P. Dubey

Frequent Co-Authors

Mónica Santín
Mónica Santín United States Department of Agriculture
James M. Trout
James M. Trout United States Department of Agriculture
Lihua Xiao
Lihua Xiao South China Agricultural University
R.C.A. Thompson
R.C.A. Thompson Murdoch University
Huw V. Smith
Huw V. Smith Stobhill Hospital
Simone M. Cacciò
Simone M. Cacciò Istituto Superiore di Sanità
Jitender P. Dubey
Jitender P. Dubey Agricultural Research Service
Mark C. Jenkins
Mark C. Jenkins United States Department of Agriculture
Thaddeus K. Graczyk
Thaddeus K. Graczyk Johns Hopkins University
Altaf A. Lal
Altaf A. Lal Sun Pharma (India)

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

For students interested in advancing their careers in Animal Science and Veterinary fields, exploring related online degrees can open diverse opportunities. Programs like online psyd programs accredited by apa offer pathways for those aiming to integrate behavioral sciences with animal welfare, enhancing skills in clinical psychology without the traditional GRE barrier.

In addition, the growing field of support services for both humans and animals presents a strong demand for expertise in counseling. Degrees such as the online addiction counseling degree prepare professionals to address substance abuse, a critical issue that can indirectly affect animal care environments through community health.

Counseling also extends to family dynamics and social contexts, which is vital for professionals working in veterinary practices or animal-related agencies. The online marriage and family therapy masters programs provide relevant skills for holistic support, helping families navigate the emotional aspects of animal care and ownership.

For those committed to academic and supervisory roles, pursuing an online phd counselor education and supervision can elevate your expertise to train future counselors within veterinary and animal sciences, bridging research, education, and practice.

Best Scientists Citing Ronald Fayer

Trending Scientists