K Schopfer

3.2k total citations · 1 hit paper
46 papers, 2.4k citations indexed

About

K Schopfer is a scholar working on Epidemiology, Infectious Diseases and Immunology. According to data from OpenAlex, K Schopfer has authored 46 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Epidemiology, 14 papers in Infectious Diseases and 13 papers in Immunology. Recurrent topics in K Schopfer's work include Tuberculosis Research and Epidemiology (9 papers), Immunodeficiency and Autoimmune Disorders (9 papers) and Mycobacterium research and diagnosis (7 papers). K Schopfer is often cited by papers focused on Tuberculosis Research and Epidemiology (9 papers), Immunodeficiency and Autoimmune Disorders (9 papers) and Mycobacterium research and diagnosis (7 papers). K Schopfer collaborates with scholars based in Switzerland, United States and France. K Schopfer's co-authors include L Matter, Thomas Bodmer, Amalio Telenti, Steven D. Douglas, Douglas B. Lowrie, Stewart T. Cole, Federica Marchesi, M. Joseph Colston, John A. Wilhelm and U. Krech and has published in prestigious journals such as New England Journal of Medicine, The Lancet and Genome Research.

In The Last Decade

K Schopfer

46 papers receiving 2.2k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Detection of rifampicin-resistance mutations in Mycobacterium tuberculosis

1993 1.0k citations Amalio Telenti, L Matter et al. The Lancet profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
K Schopfer Switzerland	21	1.5k	1.3k	575	316	274	46	2.4k
David Rifkind United States	26	1.2k 0.8×	521 0.4×	562 1.0×	238 0.8×	431 1.6×	67	2.6k
Denise Lecossier France	25	1.5k 1.0×	1.5k 1.1×	524 0.9×	537 1.7×	577 2.1×	38	3.5k
Robert W. Bradsher United States	29	2.9k 2.0×	2.6k 2.0×	163 0.3×	234 0.7×	93 0.3×	85	3.8k
James T. Summersgill United States	29	1.4k 0.9×	413 0.3×	282 0.5×	725 2.3×	744 2.7×	61	3.2k
Vibeke Østergaard Thomsen Denmark	31	2.0k 1.4×	1.9k 1.5×	1.0k 1.7×	212 0.7×	204 0.7×	64	2.8k
Seth Hetherington United States	27	668 0.5×	936 0.7×	86 0.1×	406 1.3×	438 1.6×	60	2.6k
Iver Heron Denmark	33	1.2k 0.8×	1.0k 0.8×	222 0.4×	636 2.0×	1.4k 5.1×	152	3.6k
Erik Kihlström Sweden	28	398 0.3×	290 0.2×	177 0.3×	322 1.0×	293 1.1×	71	1.8k
Setareh Mamishi Iran	24	812 0.5×	961 0.7×	278 0.5×	222 0.7×	482 1.8×	175	2.1k
H M Jansen Netherlands	31	692 0.5×	290 0.2×	160 0.3×	311 1.0×	307 1.1×	69	2.2k

Countries citing papers authored by K Schopfer

Since Specialization

Citations

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

Fields of papers citing papers by K Schopfer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of K Schopfer

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Schopfer, K, Hans L. Rieder, Thomas Bodmer, et al.. (2013). The sensitivity of an interferon-γ release assay in microbiologically confirmed pediatric tuberculosis. European Journal of Pediatrics. 173(3). 331–336. 9 indexed citations

Schopfer, K, Hans L. Rieder, Thomas Bodmer, et al.. (2012). Laboratory diagnosis of tuberculosis in a large pediatric hospital in Cambodia. The International Journal of Tuberculosis and Lung Disease. 16(4). 503–509. 3 indexed citations

Schopfer, K, et al.. (2010). Lysosomale Speichererkrankungen - Update und neue therapeutische Optionen. Klinische Monatsblätter für Augenheilkunde. 228(2). 144–160. 3 indexed citations

Mallard, Kim, K Schopfer, & Thomas Bodmer. (2004). Development of real-time PCR for the differential detection and quantification of Ureaplasma urealyticum and Ureaplasma parvum. Journal of Microbiological Methods. 60(1). 13–19. 46 indexed citations

Matter, L, Daniel Germann, Frank Bally, & K Schopfer. (1997). Age-stratified seroprevalence of measles, mumps and rubella (MMR) virus infections in Switzerland after the introduction of MMR mass vaccination. European Journal of Epidemiology. 13(1). 61–66. 26 indexed citations

Mühlemann, Kathrin, et al.. (1996). Risk Factors for Invasive Haemophilus influenzae Disease among Children 2-16 Years of Age in the Vaccine Era, Switzerland 1991-1993. International Journal of Epidemiology. 25(6). 1280–1285. 7 indexed citations

Mühlemann, Kathrin, E. Russell Alexander, Margaret S. Pepe, Noel S. Weiss, & K Schopfer. (1996). Invasive Haemophilus influenzae Disease and Epiglottitis Among Swiss Children from 1980 to 1993: Evidence for Herd Immunity Among Older Age Groups. Scandinavian Journal of Infectious Diseases. 28(3). 265–268. 20 indexed citations

Schopfer, K, et al.. (1995). [Ludwig Lichtheim and Robert Koch. How the discovery of the tubercle bacillus in Switzerland was made known (1882/1883)].. PubMed. 125(37). 1715–25. 1 indexed citations

Matter, L, Frank Bally, Daniel Germann, & K Schopfer. (1995). The incidence of rubella virus infections in Switzerland after the introduction of the MMR mass vaccination programme. European Journal of Epidemiology. 11(3). 305–310. 13 indexed citations

10.

Mühlemann, Kathrin, L Matter, Barbara J Meyer, & K Schopfer. (1995). Isolation of Coxiella burnetii from heart valves of patients treated for Q fever endocarditis. Journal of Clinical Microbiology. 33(2). 428–431. 31 indexed citations

11.

Schopfer, K, et al.. (1993). Simultaneous detection of DNA and RNA by differential polymerase chain reaction (DIFF-PCR).. Genome Research. 3(1). 23–27. 8 indexed citations

12.

Telenti, Amalio, C. Bernasconi, K Schopfer, et al.. (1993). Molecular approach to identifying route of transmission of tuberculosis in the community. The Lancet. 342(8875). 841–844. 151 indexed citations

13.

Wüthrich, B., et al.. (1991). Variant of Hyper-IgE Syndrome: The Differentiation from Atopic Dermatitis Is Important because of Treatment and Prognosis. Dermatology. 182(1). 7–11. 17 indexed citations

14.

Zuppinger, K, et al.. (1987). Comparison of human and porcine insulin therapies in children with newly diagnosed diabetes mellitus. Diabetologia. 30(12). 912–915. 13 indexed citations

15.

Hauser, Carl J., et al.. (1985). <i>Staphylococcus aureus</i> Skin Colonization in Atopic Dermatitis Patients. Dermatology. 170(1). 35–39. 134 indexed citations

16.

Schopfer, K, A Feldges, K Baerlocher, et al.. (1983). Systemic lupus erythematosus in Staphylococcus aureus hyperimmunoglobulinaemia E syndrome.. BMJ. 287(6391). 524–526. 21 indexed citations

17.

Schopfer, K, et al.. (1981). [Hereditary angioedema: description of a sibship and review].. PubMed. 111(34). 1238–45. 1 indexed citations

18.

Schopfer, K, Steven D. Douglas, & Brian J. Wilkinson. (1980). Immunoglobulin E antibodies against Staphylococcus aureus cell walls in the sera of patients with hyperimmunoglobulinemia E and recurrent staphylococcal infection. Infection and Immunity. 27(2). 563–568. 28 indexed citations

19.

Schopfer, K & Steven D. Douglas. (1976). Neutrophil function in children with kwashiorkor.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 88(3). 450–61. 54 indexed citations

20.

Douglas, Steven D. & K Schopfer. (1976). Analytical review: Host defense mechanisms in protein-energy malnutrition. Clinical Immunology and Immunopathology. 5(1). 1–5. 17 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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