Masaki Imai

16.2k total citations · 3 hit papers
134 papers, 6.6k citations indexed

About

Masaki Imai is a scholar working on Epidemiology, Infectious Diseases and Immunology. According to data from OpenAlex, Masaki Imai has authored 134 papers receiving a total of 6.6k indexed citations (citations by other indexed papers that have themselves been cited), including 63 papers in Epidemiology, 50 papers in Infectious Diseases and 33 papers in Immunology. Recurrent topics in Masaki Imai's work include Influenza Virus Research Studies (48 papers), Respiratory viral infections research (31 papers) and SARS-CoV-2 and COVID-19 Research (21 papers). Masaki Imai is often cited by papers focused on Influenza Virus Research Studies (48 papers), Respiratory viral infections research (31 papers) and SARS-CoV-2 and COVID-19 Research (21 papers). Masaki Imai collaborates with scholars based in Japan, United States and United Kingdom. Masaki Imai's co-authors include Yoshihiro Kawaoka, Gabriele Neumann, Makoto Mayumi, Y. Miyakawa, Shinji Watanabe, Hiroshi Sakugawa, Hiroaki Okamoto, Fumio Tsuda, Takato Odagiri and Maki Kiso and has published in prestigious journals such as Nature, Proceedings of the National Academy of Sciences and Journal of Biological Chemistry.

In The Last Decade

Masaki Imai

129 papers receiving 6.4k 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.

Experimental adaptation of an influenza H5 HA confers respiratory droplet transmission to a reassortant H5 HA/H1N1 virus in ferrets

2012 1.1k citations Masaki Imai, S. Yamada et al. profile →
Typing Hepatitis B Virus by Homology in Nucleotide Sequence: Comparison of Surface Antigen Subtypes

1988 887 citations Masaki Imai et al. profile →
Effectiveness of Face Masks in Preventing Airborne Transmission of SARS-CoV-2

2020 263 citations Hiroshi Ueki, Yuri Furusawa et al. mSphere profile →

Peers

Countries citing papers authored by Masaki Imai

Since Specialization

Citations

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

Fields of papers citing papers by Masaki Imai

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masaki Imai

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

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Development of a Mouse-Adapted Reporter SARS-CoV-2 as a Tool for Two-Photon In Vivo Imaging 2024 ·Viruses ·Hiroshi Ueki, Maki Kiso, Yuri Furusawa, Shun Iida, Seiya Yamayoshi, Noriko Nakajima, Masaki Imai, Tadaki Suzuki, Yoshihiro Kawaoka	2
2	An mRNA vaccine encoding the SARS-CoV-2 receptor-binding domain protects mice from various Omicron variants 2024 ·npj Vaccines ·Ryuta Uraki, Masaki Imai, Mutsumi Ito, Seiya Yamayoshi, Maki Kiso, Nao Jounai, (unknown), Kiyoko Iwatsuki‐Horimoto, Fumihiko Takeshita, Yoshihiro Kawaoka	7
3	In vitro and in vivo characterization of SARS-CoV-2 resistance to ensitrelvir 2023 ·Nature Communications ·Maki Kiso, Seiya Yamayoshi, Shun Iida, Yuri Furusawa, Yuichiro Hirata, Ryuta Uraki, Masaki Imai, Tadaki Suzuki, Yoshihiro Kawaoka	38
4	In vitro and in vivo characterization of SARS-CoV-2 strains resistant to nirmatrelvir 2023 ·Nature Communications ·Maki Kiso, Yuri Furusawa, Ryuta Uraki, Masaki Imai, Seiya Yamayoshi, Yoshihiro Kawaoka	22
5	Oral intake of heat-killed Lactiplantibacillus pentosus ONRICb0240 partially protects mice against SARS-CoV-2 infection 2023 ·SHILAP Revista de lepidopterología ·Maki Kiso, Ryuta Uraki, Mutsumi Ito, Seiya Yamayoshi, (unknown), Masaki Imai, Noriyuki Kohda, Yoshihiro Kawaoka	2
6	Avian H7N9 influenza viruses are evolutionarily constrained by stochastic processes during replication and transmission in mammals 2023 ·Virus Evolution ·Katarina M. Braun, Luis A. Haddock, Chelsea M. Crooks, Gabrielle L. Barry, (unknown), Gabriele Neumann, Tokiko Watanabe, Masaki Imai, Seiya Yamayoshi, Mutsumi Ito, Louise H. Moncla, Katia Koelle, Yoshihiro Kawaoka, Thomas C. Friedrich	4
7	SARS-CoV-2 Transmission from Virus-Infected Dead Hamsters 2023 ·mSphere ·Kiyoko Iwatsuki‐Horimoto, Hiroshi Ueki, Mutsumi Ito, Sayaka Nagasawa, Yuichiro Hirata, (unknown), (unknown), Hirotaro Iwase, Yohsuke Makino, Tetsuo Ushiku, (unknown), Masaki Imai, Hisako Saitoh, Yoshihiro Kawaoka	0
8	Antibody induction and immune response in nasal cavity by third dose of SARS-CoV-2 mRNA vaccination 2023 ·Virology Journal ·Aya Ishizaka, Michiko Koga, Taketoshi Mizutani, Ryuta Uraki, Seiya Yamayoshi, Kiyoko Iwatsuki‐Horimoto, Shinya Yamamoto, Masaki Imai, Takeya Tsutsumi, Yutaka Suzuki, Yoshihiro Kawaoka, Hiroshi Yotsuyanagi	9
9	Co-administration of Favipiravir and the Remdesivir Metabolite GS-441524 Effectively Reduces SARS-CoV-2 Replication in the Lungs of the Syrian Hamster Model 2022 ·mBio ·S. Chiba, Maki Kiso, Noriko Nakajima, Shun Iida, Tadashi Maemura, Makoto Kuroda, Yuko Sato, Mutsumi Ito, Moe Okuda, S. Yamada, Kiyoko Iwatsuki‐Horimoto, Tokiko Watanabe, Masaki Imai, Tammy Armbrust, Ralph S. Baric, Peter Halfmann, Tadaki Suzuki, Yoshihiro Kawaoka	23
10	Mature dendritic cells enriched in regulatory molecules may control regulatory T cells and the prognosis of head and neck cancer 2022 ·Cancer Science ·(unknown), Masaki Imai, (unknown), James B. Wing, Hiroaki Shime, (unknown), Ryuta Uraki, Daisuke Kawakita, Tatsuya Toyama, Satoru Takahashi, Akimichi Morita, Shingo Murakami, Naganari Ohkura, Shimon Sakaguchi, Shinichi Iwasaki, Sayuri Yamazaki	18
11	Foxp3+ CD4+ regulatory T cells control dendritic cells in inducing antigen-specific immunity to emerging SARS-CoV-2 antigens 2021 ·PLoS Pathogens ·Ryuta Uraki, Masaki Imai, Mutsumi Ito, Hiroaki Shime, (unknown), Moe Okuda, Yoshihiro Kawaoka, Sayuri Yamazaki	15
12	Highly Neutralizing COVID-19 Convalescent Plasmas Potently Block SARS-CoV-2 Replication and Pneumonia in Syrian Hamsters 2021 ·Journal of Virology ·Yuki Takamatsu, Masaki Imai, Kenji Maeda, Noriko Nakajima, Nobuyo Higashi‐Kuwata, Kiyoko Iwatsuki‐Horimoto, Mutsumi Ito, Maki Kiso, Tadashi Maemura, Yuichiro Takeda, (unknown), Tadaki Suzuki, Yoshihiro Kawaoka, Hiroaki Mitsuya	16
13	Expression of a Crry/p65 is reduced in acute lung injury induced by extracellular histones 2021 ·FEBS Open Bio ·Fumihiko Nagano, Tomohiro Mizuno, Masaki Imai, Kazuo Takahashi, Naotake Tsuboi, Shoichi Maruyama, Masashi Mizuno	5
14	Effectiveness of Face Masks in Preventing Airborne Transmission of SARS-CoV-2 breakdown → 2020 ·mSphere ·Hiroshi Ueki, Yuri Furusawa, Kiyoko Iwatsuki‐Horimoto, Masaki Imai, Hiroki Kabata, Hidekazu Nishimura, Yoshihiro Kawaoka	263
15	Proenkephalin⁺regulatory T cells expanded by ultraviolet B exposure maintain skin homeostasis with a healing function 2020 ·Proceedings of the National Academy of Sciences ·Hiroaki Shime, (unknown), Makoto Tsuiji, (unknown), Masaki Imai, Yoshiaki Yasumizu, Ryuta Uraki, (unknown), Maiko Watanabe, Anthony Bonito, Hidehiro Fukuyama, Naganari Ohkura, Shimon Sakaguchi, Akimichi Morita, Sayuri Yamazaki	50
16	Antigenic variants of influenza B viruses isolated in Japan during the 2017‐2018 and 2018‐2019 influenza seasons 2020 ·Influenza and Other Respiratory Viruses ·(unknown), Yuko Sakai‐Tagawa, Makoto Yamashita, Kiyoko Iwatsuki‐Horimoto, Mutsumi Ito, Akifumi Tokita, (unknown), (unknown), (unknown), (unknown), Michiko Koga, Eisuke Adachi, Daisuke Jubishi, Hiroshi Yotsuyanagi, Yoshihiro Kawaoka, Masaki Imai	7
17	Regulatory T cells expressing abundant CTLA‐4 on the cell surface with a proliferative gene profile are key features of human head and neck cancer 2018 ·International Journal of Cancer ·(unknown), Masaki Imai, Naganari Ohkura, Daisuke Kawakita, Kei Ijichi, Tatsuya Toyama, Akimichi Morita, Shingo Murakami, Shimon Sakaguchi, Sayuri Yamazaki	39
18	Dual Wavelength Imaging Allows Analysis of Membrane Fusion of Influenza Virus inside Cells 2006 ·Journal of Virology ·Tatsuya Sakai, Masanobu Ohuchi, Masaki Imai, Takafumi Mizuno, Kazunori Kawasaki, Kazumichi Kuroda, Shohei Yamashina	65
19	Complement Inhibitors Targeted to the Proximal Tubule Prevent Injury in Experimental Nephrotic Syndrome and Demonstrate a Key Role for C5b-9 2005 ·The Journal of Immunology ·Chunqing He, Masaki Imai, Hongbin Song, Richard J. Quigg, Stephen Tomlinson	66
20	Mouse Complement Receptor-Related Gene y/p65-Neutralized Tumor Vaccine Induces Antitumor Activity In Vivo 2004 ·The Journal of Immunology ·Rieko Ohta, (unknown), (unknown), Stephen Tomlinson, Masaki Imai, V. Michael Holers, Hidechika Okada, Noriko Okada	12

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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