Torgny Sunnerhagen

506 total citations
37 papers, 290 citations indexed

About

Torgny Sunnerhagen is a scholar working on Epidemiology, Infectious Diseases and Clinical Biochemistry. According to data from OpenAlex, Torgny Sunnerhagen has authored 37 papers receiving a total of 290 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Epidemiology, 16 papers in Infectious Diseases and 13 papers in Clinical Biochemistry. Recurrent topics in Torgny Sunnerhagen's work include Infective Endocarditis Diagnosis and Management (17 papers), Bacterial Identification and Susceptibility Testing (13 papers) and Streptococcal Infections and Treatments (9 papers). Torgny Sunnerhagen is often cited by papers focused on Infective Endocarditis Diagnosis and Management (17 papers), Bacterial Identification and Susceptibility Testing (13 papers) and Streptococcal Infections and Treatments (9 papers). Torgny Sunnerhagen collaborates with scholars based in Sweden, Denmark and United Kingdom. Torgny Sunnerhagen's co-authors include Magnus Rasmussen, Bo Nilson, Anna Bläckberg, Lars Olaison, Oskar Ljungquist, Andreas Berge, Karin Holm, Gustav Torisson, Christian G. Giske and Fredrik Kahn and has published in prestigious journals such as PLoS ONE, Clinical Infectious Diseases and Scientific Reports.

In The Last Decade

Torgny Sunnerhagen

34 papers receiving 287 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Torgny Sunnerhagen Sweden 10 185 113 111 97 41 37 290
Meera Varman United States 9 204 1.1× 97 0.9× 72 0.6× 72 0.7× 77 1.9× 33 349
Adrián Téllez Spain 8 178 1.0× 119 1.1× 91 0.8× 38 0.4× 39 1.0× 17 320
Anna Bläckberg Sweden 11 99 0.5× 107 0.9× 86 0.8× 59 0.6× 26 0.6× 21 253
Marina De Cesaris Italy 12 170 0.9× 161 1.4× 134 1.2× 51 0.5× 37 0.9× 23 426
Vance G. Fowler United States 5 196 1.1× 206 1.8× 107 1.0× 82 0.8× 43 1.0× 11 332
Caroline Heyrend United States 7 297 1.6× 104 0.9× 92 0.8× 138 1.4× 32 0.8× 15 435
Christopher Cannavino United States 12 159 0.9× 129 1.1× 97 0.9× 79 0.8× 84 2.0× 19 382
Paolo Carfagna Italy 11 181 1.0× 219 1.9× 45 0.4× 74 0.8× 46 1.1× 24 331
Carlos Gimeno Verdejo Spain 5 242 1.3× 180 1.6× 114 1.0× 45 0.5× 39 1.0× 17 342
Tatjana Lejko-Zupanc Slovenia 10 315 1.7× 249 2.2× 112 1.0× 60 0.6× 101 2.5× 20 416

Countries citing papers authored by Torgny Sunnerhagen

Since Specialization
Citations

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

Fields of papers citing papers by Torgny Sunnerhagen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Torgny Sunnerhagen. 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 Torgny Sunnerhagen. The network helps show where Torgny Sunnerhagen may publish in the future.

Co-authorship network of co-authors of Torgny Sunnerhagen

This figure shows the co-authorship network connecting the top 25 collaborators of Torgny Sunnerhagen. A scholar is included among the top collaborators of Torgny Sunnerhagen 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 Torgny Sunnerhagen. Torgny Sunnerhagen 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.
Sunnerhagen, Torgny, et al.. (2025). Infective Endocarditis Caused by Non-HACEK Gram-Negative Bacteria, a Registry-Based Comparative Study. Open Forum Infectious Diseases. 12(3). ofaf085–ofaf085.
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Ljungquist, Oskar, et al.. (2025). Association of time to positivity with disease severity in bloodstream infections—a population-based cohort study. Clinical Microbiology and Infection. 31(9). 1532–1538. 1 indexed citations
4.
Bühl, Michæl, Torgny Sunnerhagen, Olivier Join‐Lambert, et al.. (2024). Antimicrobial resistance surveillance of Bacteroides fragilis isolated from blood cultures, Europe, 2022 (ReSuBacfrag). International Journal of Antimicrobial Agents. 64(3). 107241–107241. 3 indexed citations
5.
Sunnerhagen, Torgny & Magnus Rasmussen. (2024). Lower Specificity of the European Society of Cardiology 2023 Diagnostic Criteria for Infective Endocarditis When Spondylodiscitis Is Regarded as a Vascular Phenomenon. Clinical Infectious Diseases. 79(3). 612–614. 3 indexed citations
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Sunnerhagen, Torgny, et al.. (2024). Campylobacter Infections With and Without Bacteremia: A Comparative Retrospective Population-Based Study. Open Forum Infectious Diseases. 11(3). ofae131–ofae131. 2 indexed citations
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Björklund, Lars, et al.. (2024). A Population-Based Study on the Incidence, Risk Factors, and Outcome of Salmonella Bloodstream Infections in South Sweden 2012–2022. Infectious Diseases and Therapy. 13(3). 501–519. 2 indexed citations
10.
Sunnerhagen, Torgny, et al.. (2024). Morganella morganii bloodstream infection affects the elderly in close contact with health care. IJID Regions. 13. 100480–100480. 1 indexed citations
11.
Sunnerhagen, Torgny, Thomas Bjarnsholt, Klaus Qvortrup, Henning Bundgaard, & Claus Moser. (2024). Transcatheter aortic valve implantation (TAVI) prostheses in vitro - biofilm formation and antibiotic effects. Biofilm. 8. 100236–100236. 2 indexed citations
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Johansson, Gustav, Torgny Sunnerhagen, Patrik Gilje, Sigurður Ragnarsson, & Magnus Rasmussen. (2023). Risk factors for and consequences of positive valve cultures in patients who undergo cardiac surgery while receiving antimicrobial treatment for infective endocarditis. Infectious Diseases. 56(3). 244–254.
14.
Bläckberg, Anna, et al.. (2023). A Population-Based Study of Unfavorable Prognostic Factors Associated With Pyogenic Liver Abscess. Open Forum Infectious Diseases. 10(8). ofad352–ofad352. 3 indexed citations
15.
Sunnerhagen, Torgny, Lars Christophersen, Thomas Bjarnsholt, et al.. (2023). Biofilm formation on endovascular aneurysm repair (EVAR) grafts—a proof of concept in vitro model. Clinical Microbiology and Infection. 29(12). 1600.e1–1600.e6. 2 indexed citations
16.
Svensson, Emma, et al.. (2023). Increasing incidence of pyogenic liver abscess in Southern Sweden: a population-based study from 2011 to 2020. Infectious Diseases. 55(6). 375–383. 9 indexed citations
17.
Rebetz, Johan, Anna Bläckberg, Torgny Sunnerhagen, et al.. (2021). Distinct phenotypes of platelet, monocyte, and neutrophil activation occur during the acute and convalescent phase of COVID-19. Platelets. 32(8). 1092–1102. 16 indexed citations
18.
Bläckberg, Anna, et al.. (2021). Antibody kinetics and clinical course of COVID-19 a prospective observational study. PLoS ONE. 16(3). e0248918–e0248918. 11 indexed citations
19.
Sunnerhagen, Torgny, et al.. (2017). HANDOC: A Handy Score to Determine the Need for Echocardiography in Non-β-Hemolytic Streptococcal Bacteremia. Clinical Infectious Diseases. 66(5). 693–698. 51 indexed citations
20.

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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