Koh Okamoto

1.7k total citations
93 papers, 922 citations indexed

About

Koh Okamoto is a scholar working on Infectious Diseases, Epidemiology and Surgery. According to data from OpenAlex, Koh Okamoto has authored 93 papers receiving a total of 922 indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Infectious Diseases, 31 papers in Epidemiology and 14 papers in Surgery. Recurrent topics in Koh Okamoto's work include Bacterial Identification and Susceptibility Testing (14 papers), COVID-19 Clinical Research Studies (11 papers) and Antimicrobial Resistance in Staphylococcus (11 papers). Koh Okamoto is often cited by papers focused on Bacterial Identification and Susceptibility Testing (14 papers), COVID-19 Clinical Research Studies (11 papers) and Antimicrobial Resistance in Staphylococcus (11 papers). Koh Okamoto collaborates with scholars based in Japan, United States and China. Koh Okamoto's co-authors include Kyoji Moriya, Shuji Hatakeyama, Hiroshi Yotsuyanagi, Sohei Harada, Yoona Rhee, Takehito Yamamoto, Robert A. Weinstein, Mary K. Hayden, Yoko Nukui and Shu Okugawa and has published in prestigious journals such as New England Journal of Medicine, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Koh Okamoto

83 papers receiving 904 citations

Peers

Koh Okamoto
Daisuke Sakanashi Japan
Lemonia Skoura Greece
B. Pilmis France
Rajeshwari Nair United States
Jin-Won Chung South Korea
Belén Padilla Spain
Daniel A. Green United States
Binghuai Lu China
Dimitra Dimopoulou Greece
Hiroshige Mikamo Japan
Daisuke Sakanashi Japan
Koh Okamoto
Citations per year, relative to Koh Okamoto Koh Okamoto (= 1×) peers Daisuke Sakanashi

Countries citing papers authored by Koh Okamoto

Since Specialization
Citations

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

Fields of papers citing papers by Koh Okamoto

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koh Okamoto

This figure shows the co-authorship network connecting the top 25 collaborators of Koh Okamoto. A scholar is included among the top collaborators of Koh Okamoto 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 Koh Okamoto. Koh Okamoto 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.
2.
Okamoto, Koh, Noritaka Sekiya, Akio Yamamoto, et al.. (2025). Proposed Diagnostic Criteria for Invasive Pulmonary Aspergillosis in Patients with Autoimmune Inflammatory Rheumatic Diseases: A Proof-of-Concept Study. Journal of Fungi. 11(6). 437–437. 1 indexed citations
3.
Harada, Sohei, Koh Okamoto, Koichi Takeda, et al.. (2025). Clinical and microbiological characteristics of skin and soft tissue infections of the extremities with bacteremia in patients with malignancy. Journal of Infection and Chemotherapy. 31(4). 102656–102656.
4.
Okamoto, Koh, et al.. (2024). Hepatitis E virus seroprevalence in patients with human immunodeficiency virus: A single-center study in Japan. SHILAP Revista de lepidopterología. 4(3). 100185–100185.
5.
Hashimoto, Hideki, Daisuke Jubishi, Koh Okamoto, et al.. (2024). Pulmonary Nocardiosis Due to <i>Nocardia exalbida</i> Infection Following Living-donor Liver Transplantation. Internal Medicine. 64(6). 965–969.
6.
Kanno, Yoshiaki, Koh Okamoto, Takayuki Shinohara, et al.. (2024). Pre-Transplant Seroprevalence, Associated Factors, and Post-Transplant Incidence of Toxoplasma gondii Infection Among Heart Transplant Recipients in Japan. Transplantation Proceedings. 56(1). 148–152.
7.
Sakamoto, Kenichi, et al.. (2023). Implementation of the WHO Hand Hygiene Multimodal Improvement Strategy in Japan. Japanese Journal of Infection Prevention and Control. 38(5). 220–228.
8.
Hatano, Masaru, Masaki Tsuji, Junichi Ishida, et al.. (2023). Successful Treatment with Letermovir in a Heart Transplant Recipient with UL97 Mutation Ganciclovir-Resistant Cytomegalovirus Colitis and Viremia. International Heart Journal. 64(1). 95–99. 1 indexed citations
9.
Morita, Yoshifumi, Makoto Kurano, Daisuke Jubishi, et al.. (2022). Urine sediment findings were milder in patients with COVID-19-associated renal injuries than in those with non-COVID-19-associated renal injuries. International Journal of Infectious Diseases. 117. 302–311. 5 indexed citations
10.
Kurano, Makoto, Koh Okamoto, Daisuke Jubishi, et al.. (2021). Increase in serum levels of phosphatidylserine-specific phospholipase A1 in COVID-19 patients. Cellular and Molecular Immunology. 18(9). 2275–2277. 6 indexed citations
11.
Uehara, Masae, Koh Okamoto, Norifumi Takeda, et al.. (2021). The Therapeutic Dilemma of Immunosuppressive Drugs for Refractory Cardiac Sarcoidosis in COVID-19 Infection. ESC Heart Failure. 8(6). 5577–5582. 3 indexed citations
12.
Nomura, Yusuke, et al.. (2021). Tenosynovitis caused by Mycobacterium marseillense, initially identified as Mycobacterium avium complex using AccuProbe and COBAS TaqMan. BMC Infectious Diseases. 21(1). 1092–1092. 4 indexed citations
13.
Okamoto, Koh, et al.. (2020). A nosocomial cluster of Roseomonas mucosa bacteremia possibly linked to contaminated hospital environment. Journal of Infection and Chemotherapy. 26(8). 802–806. 7 indexed citations
14.
Okamoto, Koh & Carlos Santos. (2020). Management and prophylaxis of bacterial and mycobacterial infections among lung transplant recipients. Annals of Translational Medicine. 8(6). 413–413. 11 indexed citations
15.
Okamoto, Koh, Mahoko Ikeda, Takayuki Shinohara, et al.. (2020). Dynamic changes in fibrinogen and D-dimer levels in COVID-19 patients on nafamostat mesylate. Journal of Thrombosis and Thrombolysis. 51(3). 649–656. 18 indexed citations
16.
Chlipala, George E., Zhengdeng Lei, Mark Maienschein‐Cline, et al.. (2019). Complete Genome Sequence of a USA100 Methicillin-Resistant Staphylococcus aureus Strain. Microbiology Resource Announcements. 8(11). 2 indexed citations
17.
Yamamoto, Shinya, Mahoko Ikeda, Koh Okamoto, et al.. (2017). Bilateral Candida endophthalmitis accompanying Candida lusitaniae bloodstream infection: A case report. Journal of Infection and Chemotherapy. 24(2). 147–149. 2 indexed citations
18.
Okamoto, Koh, et al.. (2013). Actual Body Weight Dosing of Vancomycin in Obese Patients. Europe PMC (PubMed Central). 2 indexed citations
19.
Thomas, Benjamin S., Koh Okamoto, Matthew J. Bankowski, & Todd B. Seto. (2012). A Lethal Case of Pseudomonas putida Bacteremia Due to Soft Tissue Infection. Infectious Diseases in Clinical Practice. 21(3). e13–e15. 33 indexed citations
20.
Hatakeyama, Shuji, Kiyoko Iwatsuki‐Horimoto, Koh Okamoto, et al.. (2011). Unadjuvanted pandemic H1N1 influenza vaccine in HIV-1-infected adults. Vaccine. 29(49). 9224–9228. 12 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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