David O’Callaghan

165 total papers · 6.8k total citations
122 papers, 4.4k citations indexed

About

David O’Callaghan is a scholar working on Small Animals, Endocrinology and Food Science. According to data from OpenAlex, David O’Callaghan has authored 122 papers receiving a total of 4.4k indexed citations (citations by other indexed papers that have themselves been cited), including 57 papers in Small Animals, 49 papers in Endocrinology and 32 papers in Food Science. Recurrent topics in David O’Callaghan’s work include Brucella: diagnosis, epidemiology, treatment (57 papers), Escherichia coli research studies (43 papers) and Salmonella and Campylobacter epidemiology (28 papers). David O’Callaghan is often cited by papers focused on Brucella: diagnosis, epidemiology, treatment (57 papers), Escherichia coli research studies (43 papers) and Salmonella and Campylobacter epidemiology (28 papers). David O’Callaghan collaborates with scholars based in France, United Kingdom and United States. David O’Callaghan's co-authors include Vincent Foulongne, Gisèle Bourg, M Ramuz, María-Laura Boschiroli, Chantal Cazevieille, Sylvie Michaux‐Charachon, A Allardet-Servent, Gordon Dougan, Foo Y. Liew and María Laura Boschiroli and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Biological Chemistry and Nature Biotechnology.

Co-authorship network of co-authors of David O’Callaghan

This figure shows the co-authorship network connecting the top 25 collaborators of David O’Callaghan. A scholar is included among the top collaborators of David O’Callaghan 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 David O’Callaghan. David O’Callaghan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

David O’Callaghan

118 papers receiving 4.1k citations

Fields of papers citing papers by David O’Callaghan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by David O’Callaghan. 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 David O’Callaghan. The network helps show where David O’Callaghan may publish in the future.

Countries citing papers authored by David O’Callaghan

Since Specialization
Citations

This map shows the geographic impact of David O’Callaghan'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 David O’Callaghan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites David O’Callaghan more than expected).

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