Halvor Rollag

4.4k total citations
120 papers, 3.4k citations indexed

About

Halvor Rollag is a scholar working on Epidemiology, Immunology and Infectious Diseases. According to data from OpenAlex, Halvor Rollag has authored 120 papers receiving a total of 3.4k indexed citations (citations by other indexed papers that have themselves been cited), including 75 papers in Epidemiology, 36 papers in Immunology and 17 papers in Infectious Diseases. Recurrent topics in Halvor Rollag's work include Cytomegalovirus and herpesvirus research (66 papers), Herpesvirus Infections and Treatments (30 papers) and Immune Cell Function and Interaction (18 papers). Halvor Rollag is often cited by papers focused on Cytomegalovirus and herpesvirus research (66 papers), Herpesvirus Infections and Treatments (30 papers) and Immune Cell Function and Interaction (18 papers). Halvor Rollag collaborates with scholars based in Norway, United States and Canada. Halvor Rollag's co-authors include Anders Hartmann, Miklos Degré, Anders Åsberg, Knut P. Nordal, Solbjørg Sagedal, Atul Humar, Alan G. Jardine, Mark D. Pescovitz, Torbjørn Leivestad and Aksel Foss and has published in prestigious journals such as Circulation, Blood and Journal of the American College of Cardiology.

In The Last Decade

Halvor Rollag

115 papers receiving 3.2k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Halvor Rollag Norway 29 2.5k 677 588 545 534 120 3.4k
Urban Sester Germany 38 1.7k 0.7× 621 0.9× 1.1k 1.9× 271 0.5× 1.1k 2.0× 99 3.7k
William Buhles United States 23 2.2k 0.9× 494 0.7× 225 0.4× 110 0.2× 521 1.0× 39 2.8k
Paul E. Hermans United States 27 1.2k 0.5× 235 0.3× 664 1.1× 222 0.4× 609 1.1× 56 2.7k
David Rifkind United States 26 1.2k 0.5× 214 0.3× 431 0.7× 288 0.5× 521 1.0× 67 2.6k
Carlos Solano Spain 35 1.8k 0.7× 1.3k 1.9× 840 1.4× 209 0.4× 878 1.6× 214 4.1k
Frank P. Stuart United States 30 553 0.2× 346 0.5× 648 1.1× 1.1k 2.1× 175 0.3× 108 3.0k
J D Meyers United States 20 2.6k 1.1× 853 1.3× 480 0.8× 41 0.1× 711 1.3× 28 3.2k
D. J. Winston United States 21 791 0.3× 322 0.5× 348 0.6× 95 0.2× 395 0.7× 33 1.7k
RA Bowden United States 16 1.3k 0.5× 511 0.8× 424 0.7× 72 0.1× 404 0.8× 22 2.2k
Margaret James Koziel United States 42 4.4k 1.8× 237 0.4× 1.4k 2.3× 117 0.2× 1.1k 2.1× 98 6.8k

Countries citing papers authored by Halvor Rollag

Since Specialization
Citations

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

Fields of papers citing papers by Halvor Rollag

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Halvor Rollag

This figure shows the co-authorship network connecting the top 25 collaborators of Halvor Rollag. A scholar is included among the top collaborators of Halvor Rollag 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 Halvor Rollag. Halvor Rollag 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.
Trogstad, Lill, et al.. (2020). Parvovirus B19 DNAemia in pregnant women in relation to perinatal death: A nested case‐control study within a large population‐based pregnancy cohort. Acta Obstetricia Et Gynecologica Scandinavica. 99(7). 856–864. 8 indexed citations
2.
Richardson, Ann, Logan C. Walker, Brian Cox, et al.. (2019). Breast cancer and cytomegalovirus. Clinical & Translational Oncology. 22(4). 585–602. 24 indexed citations
3.
Kanestrøm, Anita, Karoline Bragstad, Susanne Dudman, et al.. (2016). Usage of Antivirals and the Occurrence of Antiviral Resistance in Norway 2015. BIBSYS Brage (BIBSYS (Norway)). 2 indexed citations
4.
Ueland, Thor, Halvor Rollag, Anders Hartmann, et al.. (2013). Secreted Wnt Antagonists During Eradication of Cytomegalovirus Infection in Solid Organ Transplant Recipients. American Journal of Transplantation. 14(1). 210–215. 11 indexed citations
5.
Brantsæter, Arne Broch, Asgeir Johannessen, Mona Holberg‐Petersen, et al.. (2012). Cytomegalovirus viremia in dried blood spots is associated with an increased risk of death in HIV-infected patients: a cohort study from rural Tanzania. International Journal of Infectious Diseases. 16(12). e879–e885. 19 indexed citations
6.
Rollag, Halvor, Anders Åsberg, Thor Ueland, et al.. (2012). Treatment of Cytomegalovirus Disease in Solid Organ Transplant Recipients. Transplantation. 94(10). 1060–1065. 13 indexed citations
7.
Cox, Brian, Ann Richardson, Patrick Graham, et al.. (2010). Breast cancer, cytomegalovirus and Epstein–Barr virus: a nested case–control study. British Journal of Cancer. 102(11). 1665–1669. 49 indexed citations
8.
Lisboa, Luiz F., Anders Åsberg, Deepali Kumar, et al.. (2010). The Clinical Utility of Whole Blood Versus Plasma Cytomegalovirus Viral Load Assays for Monitoring Therapeutic Response. Transplantation. 91(2). 231–236. 70 indexed citations
9.
Åsberg, Anders, Atul Humar, Alan G. Jardine, et al.. (2009). Long-Term Outcomes of CMV Disease Treatment with Valganciclovir Versus IV Ganciclovir in Solid Organ Transplant Recipients. American Journal of Transplantation. 9(5). 1205–1213. 124 indexed citations
10.
Sagedal, Solbjørg, Steffen Thiel, Troels Krarup Hansen, et al.. (2008). Impact of the complement lectin pathway on cytomegalovirus disease early after kidney transplantation. Nephrology Dialysis Transplantation. 23(12). 4054–4060. 19 indexed citations
11.
Bjørås, Magnar, et al.. (2006). Human cytomegalovirus infection modulates DNA base excision repair in fibroblast cells. Virology. 348(2). 389–397. 12 indexed citations
12.
Rollag, Halvor, Solbjørg Sagedal, Knut Ivan Kristiansen, et al.. (2002). Cytomegalovirus DNA concentration in plasma predicts development of cytomegalovirus disease in kidney transplant recipients. Clinical Microbiology and Infection. 8(7). 431–434. 36 indexed citations
13.
Rollag, Halvor, et al.. (1998). Viral Safety of Blood Derivatives by Immune Neutralization. Vox Sanguinis. 74(S1). 213–217. 14 indexed citations
14.
Müller, Fredrik, et al.. (1997). Modification of mononuclear cell function after incubation with albumin‐bound unsaturated fatty acids or soybean oil emulsion. Apmis. 105(7-12). 671–679. 4 indexed citations
15.
Kristoffersen, Anne Karin, et al.. (1994). Expression of protein kinase A and protein kinase C during ongoing human cytomegalovirus infection. Archives of Virology. 138(1-2). 85–93. 7 indexed citations
16.
Holberg‐Petersen, Mona, Geir Bukholm, Halvor Rollag, & Miklos Degré. (1994). Infection with human cytomegalovirus enhances bacterial adhesiveness and invasiveness in permissive and semipermissive cells. Apmis. 102(7-12). 703–710. 6 indexed citations
17.
Rollag, Halvor, et al.. (1993). [Hepatitis C virus infections among persons attending special clinics dealing with problems related to social conditions].. PubMed. 113(19). 2397–400. 1 indexed citations
18.
Lappegård, Knut Tore, Haakon B. Benestad, & Halvor Rollag. (1988). Interferons Affect Oxygen Metabolism in Human Neutrophil Granulocytes. Journal of Interferon Research. 8(5). 665–677. 16 indexed citations
19.
Degré, Miklos & Halvor Rollag. (1982). Effect of a Murine Beta-Interferon Preparation on Phagocytosis and Cyclic AMP Levels in Mouse Peritoneal Macrophages. Journal of Interferon Research. 2(2). 151–157. 4 indexed citations
20.
Degré, Miklos, Gerald Sonnenfeld, Halvor Rollag, & Berit Mørland. (1981). Effect of Gamma Interferon Preparations on in vitro Phagocytosis and Degradation of Escherichia coli by Mouse Peritoneal Macrophages. Journal of Interferon Research. 1(4). 505–512. 10 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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026