Torvald Ripa

1.2k total citations
18 papers, 934 citations indexed

About

Torvald Ripa is a scholar working on Microbiology, Epidemiology and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Torvald Ripa has authored 18 papers receiving a total of 934 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Microbiology, 10 papers in Epidemiology and 4 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Torvald Ripa's work include Reproductive tract infections research (8 papers), Urinary Tract Infections Management (3 papers) and Pneumonia and Respiratory Infections (3 papers). Torvald Ripa is often cited by papers focused on Reproductive tract infections research (8 papers), Urinary Tract Infections Management (3 papers) and Pneumonia and Respiratory Infections (3 papers). Torvald Ripa collaborates with scholars based in Sweden, Denmark and Czechia. Torvald Ripa's co-authors include Peter Nilsson, Per‐Anders Mårdh, L Svensson, L Weström, Poul Christensen, Karen Kvist Christensen, Johan Lindbäck, Hannelore M Götz, M Arneborn and Kristina Ramstedt and has published in prestigious journals such as New England Journal of Medicine, Journal of Clinical Microbiology and Antimicrobial Agents and Chemotherapy.

In The Last Decade

Torvald Ripa

18 papers receiving 847 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Torvald Ripa Sweden 12 481 423 242 241 113 18 934
P A Mårdh Sweden 14 394 0.8× 396 0.9× 85 0.4× 151 0.6× 71 0.6× 38 745
P Hay United Kingdom 12 642 1.3× 549 1.3× 204 0.8× 314 1.3× 96 0.8× 22 1.2k
J Orfila France 18 783 1.6× 584 1.4× 114 0.5× 121 0.5× 216 1.9× 140 1.2k
R C Brunham Canada 18 863 1.8× 567 1.3× 111 0.5× 138 0.6× 142 1.3× 27 1.2k
Josephine M. Ehret United States 18 481 1.0× 372 0.9× 122 0.5× 191 0.8× 64 0.6× 32 906
C A Ison United Kingdom 18 1.1k 2.3× 716 1.7× 232 1.0× 77 0.3× 85 0.8× 34 1.3k
H Fredlund Sweden 18 896 1.9× 440 1.0× 139 0.6× 90 0.4× 252 2.2× 45 1.2k
W. David Hager United States 16 342 0.7× 760 1.8× 244 1.0× 216 0.9× 204 1.8× 40 1.4k
Susan Alpert United States 15 663 1.4× 532 1.3× 314 1.3× 82 0.3× 174 1.5× 25 1.1k
Andrew Hardick United States 14 496 1.0× 303 0.7× 117 0.5× 85 0.4× 192 1.7× 17 751

Countries citing papers authored by Torvald Ripa

Since Specialization
Citations

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

Fields of papers citing papers by Torvald Ripa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Torvald Ripa

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

All Works

18 of 18 papers shown
1.
Rizzo, Andrea Maria, et al.. (2015). New therapeutic and surgical approaches for the resolution of teat's lacerations, in dairy cattle.. Large animals review. 21(5). 193–199. 1 indexed citations
2.
Ripa, Torvald & Peter Nilsson. (2007). A Chlamydia trachomatis Strain With a 377-bp Deletion in the Cryptic Plasmid Causing False-Negative Nucleic Acid Amplification Tests. Sexually Transmitted Diseases. 34(5). 255–256. 116 indexed citations
3.
Gustafsson, Ingegerd, et al.. (2007). [ESBL--increasing resistance problems. Cephalosporins no longer obvious choice in diffuse infections].. PubMed. 104(51-52). 3883–5. 3 indexed citations
4.
Nilsson, Peter & Torvald Ripa. (2006). Staphylococcus aureus Throat Colonization Is More Frequent than Colonization in the Anterior Nares. Journal of Clinical Microbiology. 44(9). 3334–3339. 150 indexed citations
5.
Backhaus, Erik, Stefan Berg, Birger Trollfors, et al.. (2006). Antimicrobial susceptibility of invasive pneumococcal isolates from a region in south-west Sweden 1998–2001. Scandinavian Journal of Infectious Diseases. 39(1). 19–27. 4 indexed citations
6.
Berg, Stefan, Birger Trollfors, Erik Backhaus, et al.. (2006). Serotypes of Streptococcus pneumoniae isolated from blood and cerebrospinal fluid related to vaccine serotypes and to clinical characteristics. Scandinavian Journal of Infectious Diseases. 38(6-7). 427–432. 31 indexed citations
7.
Götz, Hannelore M, Johan Lindbäck, Torvald Ripa, et al.. (2002). Is the Increase in Notifications of Chlamydia trachomatis Infections in Sweden the Result of Changes in Prevalence, Sampling Frequency or Diagnostic Methods?. Scandinavian Journal of Infectious Diseases. 34(1). 28–34. 81 indexed citations
8.
Ripa, Torvald, et al.. (1991). Bacillus Cereus: A significant pathogen in postoperative and post-traumatic wounds on orthopaedic wards. Scandinavian Journal of Infectious Diseases. 23(1). 71–77. 40 indexed citations
9.
Ripa, Torvald, et al.. (1990). Outbreaks of Infections with Erythromycin-resistant Group A Streptococci in Child Day Care Centres. Scandinavian Journal of Infectious Diseases. 22(2). 179–185. 45 indexed citations
10.
Svensson, L, et al.. (1989). Effective Sampling Device And Mucopurulent Cervlcltls In Women With Chlamydial Cervical Infection. Acta Obstetricia Et Gynecologica Scandinavica. 68(1). 79–82. 5 indexed citations
11.
Mårdh, Per‐Anders, et al.. (1979). PNEUMONIA ASSOCIATED WITH CHLAMYDIA TRACHOMATIS INFECTION IN AN INFANT. Acta Paediatrica. 68(5). 765–767. 6 indexed citations
12.
Mårdh, Per‐Anders, et al.. (1978). Treatment of Anginose Infectious Mononucleosis with Metronidazole. Scandinavian Journal of Infectious Diseases. 10(1). 7–9. 38 indexed citations
13.
Mårdh, Per‐Anders, et al.. (1978). MICROCALORIMETRIC STUDY OF THE EFFECTS OF CEPHALEXIN AND CEPHALORIDIN ON ESCHERICHIA COLI AND STAPHYLOCOCCUS AUREUS. Acta Pathologica Microbiologica Scandinavica Section B Microbiology. 86B(1-6). 59–66. 1 indexed citations
14.
Mårdh, Per‐Anders, Torvald Ripa, L Svensson, & L Weström. (1977). CHLAMYDIA TRACHOMATIS INFECTION IN PATIENTS WITH ACUTE SALPINGITIS. Obstetrical & Gynecological Survey. 32(11). 756–757. 18 indexed citations
15.
Mårdh, Per‐Anders, Torvald Ripa, L Svensson, & L Weström. (1977). Chlamydia trachomatisInfection in Patients with Acute Salpingitis. New England Journal of Medicine. 296(24). 1377–1379. 305 indexed citations
16.
Christensen, Karen Kvist, Torvald Ripa, G Agrup, & Poul Christensen. (1976). Group B Streptococci in Human Urethral and Cervical Specimens. Scandinavian Journal of Infectious Diseases. 8(2). 75–78. 29 indexed citations
17.
Mårdh, Per‐Anders, Torvald Ripa, Karl‐Erik Andersson, & Ingemar Wadsö. (1976). Kinetics of the Actions of Tetracyclines on Escherichia coli as Studied by Microcalorimetry. Antimicrobial Agents and Chemotherapy. 10(4). 604–609. 25 indexed citations
18.
Christensen, Karen Kvist, Poul Christensen, Leo Flamholc, & Torvald Ripa. (1974). FREQUENCIES OF STREPTOCOCCI OF GROUPS A, B, C, D AND G IN URETHRA AND CERVIX SWAB SPECIMENS FROM PATIENTS WITH SUSPECTED GONOCOCCAL INFECTION. Acta Pathologica Microbiologica Scandinavica Section B Microbiology and Immunology. 82B(4). 470–474. 36 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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