World's Best Scientists 2026 revealed!

D-Index & Metrics

Microbiology

D-Index
62
Citations
10216
World Ranking
2934
National Ranking
262

Animal Science and Veterinary

D-Index
62
Citations
10366
World Ranking
297
National Ranking
32

Alexander J. Trees publication distribution in Animal Science and Veterinary in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Animal Science and Veterinary in 2026. The highlighted bar marks where Alexander J. Trees sits on this spectrum.

29–33 publications: 1 scientists 34–38 publications: 6 scientists 39–43 publications: 17 scientists 44–48 publications: 23 scientists 49–53 publications: 28 scientists 54–58 publications: 44 scientists 59–63 publications: 66 scientists 64–68 publications: 75 scientists 69–73 publications: 71 scientists 74–78 publications: 85 scientists 79–83 publications: 108 scientists 84–88 publications: 105 scientists 89–93 publications: 84 scientists 94–98 publications: 103 scientists 99–103 publications: 97 scientists 104–108 publications: 95 scientists 109–113 publications: 89 scientists 114–118 publications: 88 scientists 119–123 publications: 109 scientists 124–128 publications: 93 scientists 129–133 publications: 89 scientists 134–138 publications: 95 scientists 139–143 publications: 92 scientists 144–148 publications: 80 scientists 149–153 publications: 75 scientists 154–158 publications: 74 scientists 159–163 publications: 67 scientists 164–168 publications: 53 scientists 169–173 publications: 62 scientists 174–178 publications: 63 scientists 179–183 publications: 50 scientists 184–188 publications: 55 scientists 189–193 publications: 50 scientists 194–198 publications: 27 scientists 199–203 publications: 44 scientists 204–208 publications: 31 scientists 209–213 publications: 28 scientists 214–218 publications: 38 scientists 219–223 publications: 33 scientists 224–228 publications: 36 scientists 229–233 publications: 29 scientists 234–238 publications: 35 scientists 239–243 publications: 23 scientists 244–248 publications: 24 scientists 249–253 publications: 29 scientists 254–258 publications: 28 scientists 259–263 publications: 21 scientists 264–268 publications: 25 scientists 269–273 publications: 11 scientists 274–278 publications: 18 scientists 279–283 publications: 13 scientists 284–288 publications: 18 scientists 289–293 publications: 10 scientists 294–298 publications: 12 scientists 299–303 publications: 11 scientists 304–308 publications: 15 scientists 309–313 publications: 14 scientists 314–318 publications: 14 scientists 319–323 publications: 8 scientists 324–328 publications: 8 scientists 329–333 publications: 13 scientists 334–338 publications: 14 scientists 339–343 publications: 13 scientists 344–348 publications: 10 scientists 349–353 publications: 11 scientists 354–358 publications: 5 scientists 359–363 publications: 8 scientists 364–368 publications: 8 scientists 369–373 publications: 6 scientists 374–378 publications: 7 scientists 379–383 publications: 8 scientists 384–388 publications: 3 scientists 389–393 publications: 4 scientists 394–398 publications: 5 scientists 399–403 publications: 8 scientists 404–408 publications: 5 scientists 409–413 publications: 4 scientists 414–418 publications: 3 scientists 419–423 publications: 8 scientists 424–428 publications: 5 scientists 429–433 publications: 3 scientists 434–438 publications: 5 scientists 439–441 publications: 5 scientists 442+ publications: 99 scientists
29 publications 442+

This scientist: 171 publications — 65th percentile

65% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 442 publications or more.

Alexander J. Trees D-index placement in Animal Science and Veterinary in 2026

The chart shows the D-index (discipline H-index) distribution of Animal Science and Veterinary scientists ranked by Research.com in 2026. The highlighted bar marks where Alexander J. Trees sits on this spectrum.

20 D-Index: 5 scientists 21 D-Index: 22 scientists 22 D-Index: 31 scientists 23 D-Index: 44 scientists 24 D-Index: 53 scientists 25 D-Index: 66 scientists 26 D-Index: 80 scientists 27 D-Index: 101 scientists 28 D-Index: 106 scientists 29 D-Index: 116 scientists 30 D-Index: 154 scientists 31 D-Index: 158 scientists 32 D-Index: 143 scientists 33 D-Index: 137 scientists 34 D-Index: 126 scientists 35 D-Index: 134 scientists 36 D-Index: 112 scientists 37 D-Index: 115 scientists 38 D-Index: 105 scientists 39 D-Index: 111 scientists 40 D-Index: 107 scientists 41 D-Index: 87 scientists 42 D-Index: 74 scientists 43 D-Index: 62 scientists 44 D-Index: 61 scientists 45 D-Index: 41 scientists 46 D-Index: 51 scientists 47 D-Index: 43 scientists 48 D-Index: 28 scientists 49 D-Index: 47 scientists 50 D-Index: 40 scientists 51 D-Index: 34 scientists 52 D-Index: 33 scientists 53 D-Index: 43 scientists 54 D-Index: 16 scientists 55 D-Index: 32 scientists 56 D-Index: 21 scientists 57 D-Index: 18 scientists 58 D-Index: 28 scientists 59 D-Index: 33 scientists 60 D-Index: 17 scientists 61 D-Index: 21 scientists 62 D-Index: 18 scientists 63 D-Index: 21 scientists 64 D-Index: 9 scientists 65 D-Index: 20 scientists 66 D-Index: 11 scientists 67 D-Index: 16 scientists 68 D-Index: 12 scientists 69 D-Index: 17 scientists 70 D-Index: 13 scientists 71 D-Index: 15 scientists 72 D-Index: 11 scientists 73 D-Index: 11 scientists 74 D-Index: 14 scientists 75 D-Index: 5 scientists 76 D-Index: 6 scientists 77+ D-Index: 100 scientists
20 D-Index 77+

This scientist: 62 D-Index — 91st percentile

91% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 77 D-Index or more.

Overview

Alexander J. Trees is affiliated with the University of Liverpool in the United Kingdom. Their research spans multiple areas within medicine, focusing primarily on epidemiology and public health, with further specialization in virology and dermatology.

Their recent publications cover various aspects of public health and medical treatment. Notable papers include:

  • United Against Rabies Forum: The One Health Concept at Work (2022) published in Frontiers in Public Health
  • Treatment of disseminated granuloma annulare with pulse therapy upadacitinib (2024) published in Dermatology Online Journal
  • We must take a One Health approach to improve pandemic infection control (2020) published in Veterinary Record

The core areas of study for Alexander J. Trees are medicine with an emphasis on epidemiology, public health, environmental and occupational health, virology, dermatology, and agronomy and crop science. Their work focuses on topics such as zoonotic diseases and public health, rabies epidemiology and control, virology and viral diseases, skin diseases and diabetes, autoimmune and inflammatory disorders, inflammatory myopathies and dermatomyositis, as well as animal disease management and epidemiology.

Frequent co-authors collaborating with Trees include Rachel Tidman, SM Thumbi, Ryan M. Wallace, Katinka De Balogh, and Vivian Iwar.

Their publications have appeared in several peer-reviewed journals, primarily Frontiers in Public Health, Dermatology Online Journal, and Veterinary Record.

Best Publications

  • Estimation of vertical and horizontal transmission parameters of Neospora caninum infections in dairy cattle.

    H.C Davison;A Otter;A.J Trees

  • Redescription of Neospora caninum and its differentiation from related coccidia.

    J P Dubey;B C Barr;J R Barta;I Bjerkås

  • Neospora caninum -associated abortion in cattle: the time of experimentally-induced parasitaemia during gestation determines foetal survival

    D. J. L. Williams;C. S. Guy;J. W. McGARRY;F. Guy

  • Wolbachia in filarial nematodes: evolutionary aspects and implications for the pathogenesis and treatment of filarial diseases.

    Claudio Bandi;Alexander J Trees;Norbert W Brattig

  • Comparative Genomics of the Apicomplexan Parasites Toxoplasma gondii and Neospora caninum: Coccidia Differing in Host Range and Transmission Strategy

    Adam James Reid;Sarah J. Vermont;James A. Cotton;David Harris

  • Endogenous and exogenous transplacental infection in Neospora caninum and Toxoplasma gondii

    Alexander J. Trees;Diana J.L. Williams

  • Analysis of gene expression from the Wolbachia genome of a filarial nematode supports both metabolic and defensive roles within the symbiosis.

    Alistair C. Darby;Stuart D. Armstrong;Germanus S. Bah;Gaganjot Kaur

  • Clinical aspects of 27 cases of neosporosis in dogs

    J. S. Barber;A. J. Trees

  • Macrofilaricidal activity of tetracycline against the filarial nematode Onchocerca ochengi: elimination of Wolbachia precedes worm death and suggests a dependent relationship

    N. G. Langworthy;A. Renz;U. Mackenstedt;K. Henkle–Dührsen

  • Tapeworm infection is a significant risk factor for spasmodic colic and ileal impaction colic in the horse.

    C. J. Proudman;N. P. French;A. J. Trees

  • Towards evaluating the economic impact of bovine neosporosis.

    A.J Trees;H.C Davison;E.A Innes;J.M Wastling

  • Neospora caninum in persistently infected, pregnant cows: spontaneous transplacental infection is associated with an acute increase in maternal antibody.

    C S Guy;Williams Djl;D F Kelly;J W McGarry

  • Prevalence of antibodies to Neospora caninum in different canid populations.

    J. S. Barber;R. B. Gasser;R. B. Gasser;J. Ellis;J. Ellis;M. P. Reichel;M. P. Reichel

  • Systematic review of the distribution of the major vector-borne parasitic infections in dogs and cats in Europe

    L. A. Trotz-Williams;Alexander J. Trees

  • Neospora caninum in dogs: detection of antibodies by ELISA using an iscom antigen

    C. Björkman;A. Lundén;J. Holmdahl;J. Barber

  • Prevalence of antibodies to Neospora caninum in a population of urban dogs in England

    AJ Trees;F Guy;BJ Tennant;AH Balfour

  • Immunization of cattle with live tachyzoites of Neospora caninum confers protection against fetal death

    Diana J.L. Williams;C. S. Guy;R. F. Smith;J. Ellis

  • Genotyping of Toxoplasma gondii associated with abortion in sheep.

    M. R. Owen;A. J. Trees

  • Naturally occurring vertical transmission of Neospora caninum in dogs.

    J.S. Barber;A.J. Trees;A.J. Trees

  • Of Mice, Cattle, and Humans: The Immunology and Treatment of River Blindness

    Judith E. Allen;Ohene Adjei;Odile Bain;Achim Hoerauf

  • Characterization of the first European isolate of Neospora caninum (Dubey, Carpenter, Speer, Topper and Uggla)

    J. S. Barber;O. J. M. Holmdahl;M. R. Owen;F. Guy

  • Experimental Neosporosis in Pregnant Ewes and Their Offspring

    M. M. McAllister;A. M. McGuire;W. R. Jolley;D. S. Lindsay

  • Novel ELISA for detection of Neospora-specific antibodies in cattle

    D. J. L. Williams;J. McGarry;F. Guy;J. Barber

  • The extent of parasite-associated necrosis in the placenta and foetal tissues of cattle following Neospora caninum infection in early and late gestation correlates with foetal death.

    E. Helen Gibney;Anja Kipar;Anne Rosbottom;Catherine S. Guy

  • Correlation of antigen specific IgG and IgG(T) responses with Anoplocephala perfoliata infection intensity in the horse

    C.J. Proudman;A.J. Trees

  • Vector-borne diseases--constant challenge for practicing veterinarians: recommendations from the CVBD World Forum.

    Gad Baneth;Patrick Bourdeau;Gilles Bourdoiseau;Dwight Bowman

  • Use of excretory/secretory antigens for the serodiagnosis of Anoplocephala perfoliata cestodosis.

    C.J. Proudman;A.J. Trees

  • Protracted Shedding of Oocysts of Neospora caninum by a Naturally Infected Foxhound

    J.W. McGarry;C. M. Stockton;Diana J.L. Williams;Alexander J. Trees

  • Cattle protected from onchocerciasis by ivermectin are highly susceptible to infection after drug withdrawal.

    L.M. Njongmeta;C.K. Nfon;J. Gilbert;Benjamin L. Makepeace

Frequent Co-Authors

Diana L. Williams
Diana L. Williams University of Liverpool
Robert Smith
Robert Smith University of Liverpool
Camilla Björkman
Camilla Björkman Swedish University of Agricultural Sciences
Milton M. McAllister
Milton M. McAllister University of Adelaide
Jitender P. Dubey
Jitender P. Dubey Agricultural Research Service
John Ellis
John Ellis University of Technology Sydney
Sara Lustigman
Sara Lustigman New York Blood Center
Anja Kipar
Anja Kipar University of Zurich
Steven A. Williams
Steven A. Williams Smith College
David S. Lindsay
David S. Lindsay Virginia Tech

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Related Online Degrees & Career Pathways

For those interested in exploring career options alongside Animal Science and Veterinary studies, several online degree programs offer flexible and specialized education paths. For example, pursuing mft master’s programs online can provide skills in counseling, a valuable asset when working with pet owners and animal-related communities.

Advancing further, a doctorate in counseling online prepares individuals for leadership roles in behavioral sciences, which can complement veterinary practices focusing on animal behavior and welfare.

Animal-related degrees open doors to diverse careers beyond veterinary medicine. According to animal degrees, graduates can work in wildlife conservation, animal nutrition, and research, among other fields.

Additionally, skills learned in these programs can support paths like becoming an athletic director jobs where managing animal-assisted therapy programs or overseeing sports animals requires leadership and organizational expertise.

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