Leonard Koolman

494 total citations
29 papers, 344 citations indexed

About

Leonard Koolman is a scholar working on Food Science, Animal Science and Zoology and Infectious Diseases. According to data from OpenAlex, Leonard Koolman has authored 29 papers receiving a total of 344 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Food Science, 13 papers in Animal Science and Zoology and 5 papers in Infectious Diseases. Recurrent topics in Leonard Koolman's work include Salmonella and Campylobacter epidemiology (12 papers), Animal Nutrition and Physiology (10 papers) and Viral gastroenteritis research and epidemiology (5 papers). Leonard Koolman is often cited by papers focused on Salmonella and Campylobacter epidemiology (12 papers), Animal Nutrition and Physiology (10 papers) and Viral gastroenteritis research and epidemiology (5 papers). Leonard Koolman collaborates with scholars based in Ireland, United States and Iran. Leonard Koolman's co-authors include Paul Whyte, Declan Bolton, Catherine M. Burgess, Declan Bolton, Séamus Fanning, James G. Lyng, A.P. Moloney, Carlos Álvarez, Lisa O’Connor and Aidan Coffey and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Dairy Science and Frontiers in Microbiology.

In The Last Decade

Leonard Koolman

29 papers receiving 338 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Leonard Koolman Ireland 11 213 113 96 75 57 29 344
Zhaohao Shi United States 7 276 1.3× 125 1.1× 99 1.0× 83 1.1× 98 1.7× 13 391
A. Woo-Ming United States 10 174 0.8× 127 1.1× 69 0.7× 70 0.9× 47 0.8× 14 334
Anthony Pavic Australia 9 246 1.2× 76 0.7× 104 1.1× 72 1.0× 45 0.8× 20 329
Lia Bardasi Italy 11 137 0.6× 74 0.7× 68 0.7× 65 0.9× 39 0.7× 25 304
Adriana Maria de Almeida Brazil 13 295 1.4× 94 0.8× 91 0.9× 44 0.6× 91 1.6× 25 412
Diana Neri Italy 9 206 1.0× 56 0.5× 111 1.2× 79 1.1× 35 0.6× 19 306
Kristina M. Feye United States 13 323 1.5× 226 2.0× 95 1.0× 114 1.5× 136 2.4× 38 519
Anuraj T. Sukumaran United States 11 277 1.3× 172 1.5× 114 1.2× 70 0.9× 90 1.6× 35 503
Typhaine Poëzévara France 13 316 1.5× 195 1.7× 194 2.0× 55 0.7× 71 1.2× 25 500
Tina Birk Denmark 10 286 1.3× 88 0.8× 110 1.1× 152 2.0× 60 1.1× 18 379

Countries citing papers authored by Leonard Koolman

Since Specialization
Citations

This map shows the geographic impact of Leonard Koolman's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Leonard Koolman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Leonard Koolman more than expected).

Fields of papers citing papers by Leonard Koolman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Leonard Koolman. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Leonard Koolman. The network helps show where Leonard Koolman may publish in the future.

Co-authorship network of co-authors of Leonard Koolman

This figure shows the co-authorship network connecting the top 25 collaborators of Leonard Koolman. A scholar is included among the top collaborators of Leonard Koolman based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Leonard Koolman. Leonard Koolman is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Vasić, Tanja, Periyasamy Panneerselvam, Gustavo Santoyo, et al.. (2025). Mechanistic Role of Heavy Metals in Driving Antimicrobial Resistance: From Rhizosphere to Phyllosphere. Applied Microbiology. 5(3). 79–79. 3 indexed citations
2.
Koolman, Leonard, et al.. (2025). Characterization of bacterial and fungal populations in retail kefirs in Ireland. Journal of Dairy Science. 108(8). 8187–8204. 1 indexed citations
3.
Koolman, Leonard, et al.. (2023). The Gut Microbiota of Broilers Reared with and without Antibiotic Treatment. Microorganisms. 11(4). 876–876. 4 indexed citations
4.
Macori, Guerrino, et al.. (2023). Klebsiella, a Hitherto Underappreciated Zoonotic Pathogen of Importance to One Health: A Short Review. SHILAP Revista de lepidopterología. 3(1). 4 indexed citations
5.
Mousavi, Zeinab E., Kevin Hunt, Leonard Koolman, Francis Butler, & Séamus Fanning. (2023). Cronobacter Species in the Built Food Production Environment: A Review on Persistence, Pathogenicity, Regulation and Detection Methods. Microorganisms. 11(6). 1379–1379. 16 indexed citations
6.
Mousavi, Zeinab E., Leonard Koolman, Guerrino Macori, Séamus Fanning, & Francis Butler. (2023). Comprehensive Genomic Characterization of Cronobacter sakazakii Isolates from Infant Formula Processing Facilities Using Whole-Genome Sequencing. Microorganisms. 11(11). 2749–2749. 4 indexed citations
7.
Nguyen, Scott V., Derek Fairley, Helina Marshall, et al.. (2023). Terrisporobacter hibernicus sp. nov., isolated from bovine faeces in Northern Ireland. INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY. 73(1). 8 indexed citations
8.
9.
Koolman, Leonard, Reenesh Prakash, Chisomo Msefula, et al.. (2022). Case-control investigation of invasive Salmonella disease in Malawi reveals no evidence of environmental or animal transmission of invasive strains, and supports human to human transmission. PLoS neglected tropical diseases. 16(12). e0010982–e0010982. 18 indexed citations
10.
Koolman, Leonard, Paul Whyte, Catherine M. Burgess, et al.. (2022). Effect of Doxycycline Use in the Early Broiler Production Cycle on the Microbiome. Frontiers in Microbiology. 13. 885862–885862. 4 indexed citations
11.
Macori, Guerrino, Gerald Barry, Leonard Koolman, et al.. (2022). Inactivation and Recovery of High Quality RNA From Positive SARS-CoV-2 Rapid Antigen Tests Suitable for Whole Virus Genome Sequencing. Frontiers in Public Health. 10. 863862–863862. 6 indexed citations
12.
Lynch, Helen, Leonard Koolman, Montserrat Gutiérrez, et al.. (2022). Prevalence and levels of Campylobacter in broiler chicken batches and carcasses in Ireland in 2017–2018. International Journal of Food Microbiology. 372. 109693–109693. 14 indexed citations
13.
Koolman, Leonard, Paul Whyte, Helen Lynch, et al.. (2021). Maximising Productivity and Eliminating Campylobacter in Broilers by Manipulating Stocking Density and Population Structure Using ‘Biosecurity Cubes’. Pathogens. 10(4). 492–492. 5 indexed citations
14.
Koolman, Leonard, et al.. (2021). The microbiology of beef from carcass chilling through primal storage to retail steaks. Current Research in Food Science. 4. 150–162. 16 indexed citations
15.
16.
Koolman, Leonard, et al.. (2020). The effect of four alternative chilling regimes on the bacterial load on beef carcasses. Food Microbiology. 95. 103717–103717. 6 indexed citations
17.
Koolman, Leonard, Paul Whyte, Catherine M. Burgess, & Declan Bolton. (2015). Distribution of Virulence-Associated Genes in a Selection of Campylobacter Isolates. Foodborne Pathogens and Disease. 12(5). 424–432. 56 indexed citations
18.
Koolman, Leonard, et al.. (2014). Use of chemical treatments applied alone and in combination to reduce Campylobacter on raw poultry. Food Control. 46. 299–303. 19 indexed citations
19.
Koolman, Leonard, et al.. (2014). A Combination of Chemical and Ultrasonication Treatments to Reduce Campylobacter jejuni on Raw Poultry. Food and Bioprocess Technology. 7(12). 3602–3607. 12 indexed citations
20.
Koolman, Leonard, Paul Whyte, & Declan Bolton. (2014). An investigation of broiler caecalCampylobactercounts at first and second thinning. Journal of Applied Microbiology. 117(3). 876–881. 34 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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2026