Ivan Saphra

1.1k total citations · 1 hit paper
14 papers, 633 citations indexed

About

Ivan Saphra is a scholar working on Food Science, Infectious Diseases and Surgery. According to data from OpenAlex, Ivan Saphra has authored 14 papers receiving a total of 633 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Food Science, 2 papers in Infectious Diseases and 2 papers in Surgery. Recurrent topics in Ivan Saphra's work include Salmonella and Campylobacter epidemiology (5 papers), Viral gastroenteritis research and epidemiology (1 paper) and Infectious Diseases and Tuberculosis (1 paper). Ivan Saphra is often cited by papers focused on Salmonella and Campylobacter epidemiology (5 papers), Viral gastroenteritis research and epidemiology (1 paper) and Infectious Diseases and Tuberculosis (1 paper). Ivan Saphra collaborates with scholars based in United States and South Africa. Ivan Saphra's co-authors include Michael Wassermann, Lotte Strauss, Frederick G. Zak, Robert A. MacCready, E. Seligmann, A. J. Weil, S. Friedman, Sarah F. Leibowitz and W. Antopol and has published in prestigious journals such as New England Journal of Medicine, Annals of Internal Medicine and The Journal of Immunology.

In The Last Decade

Ivan Saphra

13 papers receiving 491 citations

Hit Papers

Clinical Manifestations of Salmonellosis in Man 1957 2026 1980 2003 1957 100 200 300
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.

  1. Clinical Manifestations of Salmonellosis in Man
    1957 383 citations Ivan Saphra et al. New England Journal of Medicine profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ivan Saphra United States 7 297 208 169 117 112 14 633
K. E. Choo Malaysia 16 152 0.5× 126 0.6× 197 1.2× 97 0.8× 52 0.5× 31 549
CH Chiu Taiwan 12 132 0.4× 155 0.7× 200 1.2× 101 0.9× 54 0.5× 27 559
J. Neal Middelkamp United States 17 34 0.1× 186 0.9× 123 0.7× 182 1.6× 63 0.6× 36 621
A. Henderson United Kingdom 12 42 0.1× 64 0.3× 70 0.4× 97 0.8× 80 0.7× 30 433
C. Dulake United Kingdom 9 99 0.3× 54 0.3× 76 0.4× 173 1.5× 114 1.0× 23 460
Frank M. Calia United States 14 45 0.2× 76 0.4× 137 0.8× 106 0.9× 67 0.6× 24 547
Sydney Ross United States 11 37 0.1× 40 0.2× 263 1.6× 150 1.3× 53 0.5× 22 615
William I. Metzger United States 12 68 0.2× 54 0.3× 45 0.3× 190 1.6× 24 0.2× 26 458
Bengt Gästrin Sweden 10 29 0.1× 92 0.4× 62 0.4× 103 0.9× 54 0.5× 15 360
B Dainelli Italy 13 27 0.1× 364 1.8× 111 0.7× 78 0.7× 70 0.6× 29 587

Countries citing papers authored by Ivan Saphra

Since Specialization
Citations

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

Fields of papers citing papers by Ivan Saphra

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ivan Saphra

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

All Works

14 of 14 papers shown
1.
Zak, Frederick G., Lotte Strauss, & Ivan Saphra. (1958). Rupture of Diseased Large Arteries in the Course of Enterobacterial (Salmonella) Infections. New England Journal of Medicine. 258(17). 824–828. 82 indexed citations
2.
MacCready, Robert A., et al.. (1957). Salmonellosis in Massachusetts. New England Journal of Medicine. 256(24). 1121–1128. 76 indexed citations
3.
Saphra, Ivan, et al.. (1957). Clinical Manifestations of Salmonellosis in Man. New England Journal of Medicine. 256(24). 1128–1134. 383 indexed citations breakdown →
4.
Leibowitz, Sarah F., et al.. (1956). ACUTE SUPPURATIVE ARTHRITIS DUE TO ESCHERICHIA COLI SEPTICEMIA. Annals of Internal Medicine. 44(5). 1031–1036. 2 indexed citations
5.
Saphra, Ivan. (1956). Antibiotic treatment of enteral or parenteral Salmonella infections.. PubMed. 3(7). 437–8. 1 indexed citations
6.
Weil, A. J. & Ivan Saphra. (1955). Incidence of Antibodies to Salmonellae among the Population of the Bronx, N. Y.. The Journal of Immunology. 74(6). 485–487. 1 indexed citations
7.
Saphra, Ivan, Michael Wassermann, & S. Friedman. (1955). A NEW SALMONELLA TYPE: SALMONELLA BRONX. Journal of Bacteriology. 69(4). 477–477. 1 indexed citations
8.
Wassermann, Michael & Ivan Saphra. (1955). THE USE OF BACTERIOPHAGES IN TYPING SALMONELLA CULTURES. Journal of Bacteriology. 69(1). 97–100. 6 indexed citations
9.
Friedman, S., Michael Wassermann, & Ivan Saphra. (1955). A NEW SALMONELLA TYPE: SALMONELLA BLOCKLEY. Journal of Bacteriology. 70(3). 354–355. 3 indexed citations
10.
Saphra, Ivan & Michael Wassermann. (1954). A Clinical and Epidemiological Evaluation of 329 Infections identified between 1940, and 1954 in the New York Salmonella Center.. The American Journal of the Medical Sciences. 228(5). 7 indexed citations
11.
Saphra, Ivan & Michael Wassermann. (1954). SALMONELLA CHOLERAE SUIS. A CLINICAL AND EPIDEMIOLOGICAL EVALUATION OF 329 INFECTIONS IDENTIFIED BETWEEN 1940 AND 1954 IN THE NEW YORK SALMONELLA CENTER. The American Journal of the Medical Sciences. 228(5). 525–533. 58 indexed citations
12.
Weil, A. J. & Ivan Saphra. (1954). Salmonellae and Shigellae. Laboratory Diagnosis Correlated with Clinical Manifestations and Epidemiology. Southern Medical Journal. 47(4). 386–386. 5 indexed citations
13.
Antopol, W., et al.. (1952). The occurrence of spontaneous infections after the administration of cortisone and ACTH.. PubMed. 28(8). 540–540. 1 indexed citations
14.
Seligmann, E. & Ivan Saphra. (1951). An Unusual Enteric Pathogen. Public Health Reports (1896-1970). 66(42). 1369–1369. 7 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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