Clinical and epidemiological characteristics of hospitalized patients with Diphyllobothriasis in Japan: A nationwide administrative database study.
Hideki Sakakibara; Naoaki Ohkubo; Kei Yamasaki; Masahiro Tahara; Kei Nakamura; Kentaro Akata; Hiroaki Ikegami; Takanobu Jotatsu; Makoto Okawara; Yoshihisa Fujino; Shinya Matsuda; Kiyohide Fushimi; Hiroshi Mukae; Kazuhiro Yatera
Parasitology international, Apr. 2026

Corrigendum to "Nationwide surveillance of bacterial respiratory pathogens conducted by the surveillance committee of the Japanese Society of Chemotherapy, the Japanese Association for Infectious Diseases, and the Japanese Society for Clinical Microbiology in 2019-2020: General view of the pathogens' antibacterial susceptibility" [J. Infect. Chemother. 29 (2023) 731-743].
Issei Tokimatsu; Tetsuya Matsumoto; Hiroki Tsukada; Yuji Fujikura; Makoto Miki; Yoshitomo Morinaga; Junko Sato; Tomotaro Wakamura; Hiroshi Kiyota; Kazuhiro Tateda; Hideji Yanagisawa; Takaaki Sasaki; Hideki Ikeda; Hiroshi Horikawa; Hiroshi Takahashi; Masafumi Seki; Yoshiaki Mori; Hiroaki Takeda; Daisuke Kurai; Naoki Hasegawa; Yoshifumi Uwamino; Makoto Kudo; Masaki Yamamoto; Yuko Nagano; Sakika Nomura; Takafumi Tetsuka; Miyuki Hosokai; Nobuki Aoki; Yoshihiro Yamamoto; Yoshitsugu Iinuma; Hiroshige Mikamo; Hiroyuki Suematsu; Takaya Maruyama; Atsushi Kawabata; Yoshiko Sugaki; Atsushi Nakamura; Yasunori Fujikawa; Tatsuya Fukumori; Akira Ukimura; Hiroshi Kakeya; Makoto Niki; Koichiro Yoshida; Yoshihiro Kobashi; Hirokazu Tokuyasu; Kazuhiro Yatera; Hiroaki Ikegami; Masaki Fujita; Takemasa Matsumoto; Katsunori Yanagihara; Junichi Matsuda; Kazufumi Hiramatsu; Takashi Shinzato
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy, Mar. 2026

Peritoneal Tuberculosis Mimicking Cancerous Peritonitis With Elevated Serum Cancer Antigen 125 and Carbohydrate Antigen 19-9 Levels: A Case Report.
Toshiki Morimoto; Kei Yamasaki; Rumiko Fujimasa; Atsushi Tohyama; Maika Meguro; Hiroaki Degawa; Riho Hirosawa; Hiroaki Ikegami; Masahiro Tahara; Takanobu Jotatsu; Kazuhiro Yatera
Respirology case reports, Nov. 2025

Surveillance and phylogenetic analysis of a pathogenic bacterium candidate in nasal discharge from children.
Kazumasa Fukuda; Kaoru Haro; Kei Yamasaki; Hiroaki Ikegami; Mitsumasa Saito
Microbiology spectrum, Jul. 2024

Epidemiologic evaluation of pulmonary paragonimiasis in Japan using a Japanese nationwide administrative database.
Issei Ikushima; Kei Yamasaki; Masahiro Tahara; Kazuki Nemoto; Kentaro Akata; Hiroaki Ikegami; Chinatsu Nishida; Keiji Muramatsu; Yoshihisa Fujino; Shinya Matsuda; Kiyohide Fushimi; Hiroshi Mukae; Kazuhiro Yatera
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy, Jul. 2024

Sarcoidosis Associated with Enlarged Mediastinal Lymph Nodes with the Detection of Streptococcus gordonii and Cutibacterium acnes Using a Clone Library Method.
Kentaro Akata; Kei Yamasaki; Kazuki Nemoto; Hiroaki Ikegami; Takako Kawaguchi; Shingo Noguchi; Toshinori Kawanami; Kazumasa Fukuda; Hiroshi Mukae; Kazuhiro Yatera
Internal medicine (Tokyo, Japan), Jan. 2024

A case of idiopathic multicentric Castleman's disease with secondary autoimmune neutropenia.
Toshiki Morimoto; Takako Kawaguchi; Kei Yamasaki; Tatsuya Shingu; Hiroaki Ikegami; Hiroki Dosaka; Yuichi Murata; Yoshinori Kawabata; Kazuhiro Yatera
Respirology case reports, Jan. 2024

Clinical characteristics and antimicrobial susceptibility of non-vaccine serotype Streptococcus pneumoniae in adult Japanese patients with pneumonia.
Kentaro Akata; Kei Yamasaki; Shingo Noguchi; Bin Chang; Kazuki Nemoto; Hiroaki Ikegami; Toshinori Kawanami; Hiroshi Mukae; Kazuhiro Yatera
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy, Oct. 2023

Nationwide surveillance of bacterial respiratory pathogens conducted by the surveillance committee of the Japanese Society of Chemotherapy, the Japanese Association for Infectious Diseases, and the Japanese Society for Clinical Microbiology in 2019-2020: General view of the pathogens' antibacterial susceptibility.
Issei Tokimatsu; Tetsuya Matsumoto; Hiroki Tsukada; Yuji Fujikura; Makoto Miki; Yoshitomo Morinaga; Junko Sato; Tomotaro Wakamura; Hiroshi Kiyota; Kazuhiro Tateda; Hideji Yanagisawa; Takaaki Sasaki; Hideki Ikeda; Hiroshi Horikawa; Hiroshi Takahashi; Masafumi Seki; Yoshiaki Mori; Hiroaki Takeda; Daisuke Kurai; Naoki Hasegawa; Yoshifumi Uwamino; Makoto Kudo; Masaki Yamamoto; Yuko Nagano; Sakika Nomura; Takafumi Tetsuka; Miyuki Hosokai; Nobuki Aoki; Yoshihiro Yamamoto; Yoshitsugu Iinuma; Hiroshige Mikamo; Hiroyuki Suematsu; Takaya Maruyama; Atsushi Kawabata; Yoshiko Sugaki; Atsushi Nakamura; Yasunori Fujikawa; Tatsuya Fukumori; Akira Ukimura; Hiroshi Kakeya; Makoto Niki; Koichiro Yoshida; Yoshihiro Kobashi; Hirokazu Tokuyasu; Kazuhiro Yatera; Hiroaki Ikegami; Masaki Fujita; Takemasa Matsumoto; Katsunori Yanagihara; Junichi Matsuda; Kazufumi Hiramatsu; Takashi Shinzato
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy, Aug. 2023

Reduced phagocytic activity of human alveolar macrophages infected with Mycobacterium avium complex.
Hiroaki Ikegami; Kei Yamasaki; Midori Ogawa; Kazuki Nemoto; Kentaro Akata; Shingo Noguchi; Kazumasa Fukuda; Toshinori Kawanami; Hiroshi Mukae; Kazuhiro Yatera
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy, Nov. 2022

Comparative study of bacterial flora in bronchoalveolar lavage fluid of pneumonia patients based on their pneumonia subtypes and comorbidities using 16S ribosomal RNA gene analysis.
Kazuki Nemoto; Kazuhiro Yatera; Kentarou Akata; Hiroaki Ikegami; Kei Yamasaki; Ryosuke Hata; Keisuke Naito; Shingo Noguchi; Toshinori Kawanami; Kazumasa Fukuda; Hiroshi Mukae
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy, Oct. 2022

Combined Radiographic Features and Age Can Distinguish Mycoplasma pneumoniae Pneumonia from Other Bacterial Pneumonias: Analysis Using the 16S rRNA Gene Sequencing Data.
Yuto Iwanaga; Kei Yamasaki; Kazuki Nemoto; Kentaro Akata; Hiroaki Ikegami; Keigo Uchimura; Shingo Noguchi; Chinatsu Nishida; Toshinori Kawanami; Kazumasa Fukuda; Hiroshi Mukae; Kazuhiro Yatera
Journal of clinical medicine, Apr. 2022

Epidemiologic evaluation of pleurisy diagnosed by surgical pleural biopsy using data from a nationwide administrative database.
Kanako Hara; Kei Yamasaki; Masahiro Tahara; Hiroaki Ikegami; Chinatsu Nishida; Keiji Muramutsu; Yoshihisa Fujino; Shinya Matsuda; Kiyohide Fushimi; Hiroshi Mukae; Kazuhiro Yatera
Thoracic cancer, Apr. 2022

Severe infectious acute respiratory failure mimicking COVID-19 in a healthy adolescent.
Kohei Hashimoto; Takako Kawaguchi; Kei Yamasaki; Hiroaki Ikegami; Toshinori Kawanami; Kazuhiro Yatera
Respirology case reports, Apr. 2022

Refinement of microbiota analysis of specimens from patients with respiratory infections using next-generation sequencing.
Hiroaki Ikegami; Shingo Noguchi; Kazumasa Fukuda; Kentaro Akata; Kei Yamasaki; Toshinori Kawanami; Hiroshi Mukae; Kazuhiro Yatera
Scientific reports, Oct. 2021

Association between obligatory anaerobes and empyema caused by Streptococcus anginosus group bacteria.
Shingo Noguchi; Kazuhiro Yatera; Toshinori Kawanami; Hiroaki Ikegami; Ryosuke Hata; Kei Yamasaki; Kazumasa Fukuda; Hiroshi Mukae
Respiratory investigation, Sep. 2021

A fatal case of COVID-19-associated invasive pulmonary aspergillosis.
Yuto Iwanaga; Toshinori Kawanami; Kei Yamasaki; Hideki Sakakibara; Issei Ikushima; Hiroaki Ikegami; Masahiro Tahara; Kentaro Akata; Hiroshi Mukae; Kazuhiro Yatera
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy, Jul. 2021

A human respiratory tract-associated bacterium with an extremely small genome.
Kazumasa Fukuda; Kei Yamasaki; Yoshitoshi Ogura; Toshinori Kawanami; Hiroaki Ikegami; Shingo Noguchi; Kentarou Akata; Keisuke Katsura; Kazuhiro Yatera; Hiroshi Mukae; Tetsuya Hayashi; Hatsumi Taniguchi
Communications biology, May 2021

Coinfection With Multiple Nontuberculous Mycobacteria as a Possible Exacerbating Factor in Pulmonary Nontuberculous Mycobacteriosis: Clone Library Analysis Using the 16S Ribosomal RNA Gene.
Keisuke Naito; Shingo Noguchi; Kazuhiro Yatera; Toshinori Kawanami; Kei Yamasaki; Kazumasa Fukuda; Hiroaki Ikegami; Kentaro Akata; Takashi Kido; Noriho Sakamoto; Mitsumasa Saito; Hiroshi Mukae
Chest, Dec. 2020

Pseudoaneurysm after total arch replacement mimicking malignant lymphadenopathy.
Yosuke Chiba; Kei Yamasaki; Hiroaki Ikegami; Kazuhiro Yatera
Respirology case reports, Oct. 2020

Pulmonary Mycobacterium parascrofulaceum Infection in a Patient with Chronic Progressive Pulmonary Aspergillosis: A Case Report and Literature Review.
Hiroaki Ikegami; Kei Yamasaki; Toshinori Kawanami; Kazumasa Fukuda; Kentaro Akata; Midori Nakamura; Issei Ikushima; Yoko Fukuda; Shingo Noguchi; Kazuhiro Yatera
Internal medicine (Tokyo, Japan), Jun. 2020

A Case of Empyema with Rare Chest Findings.
Hiroaki Ikegami; Kei Yamasaki; Toshinori Kawanami; Kazuhiro Yatera
Internal medicine (Tokyo, Japan), Mar. 2020

Poor oral hygiene is associated with the detection of obligate anaerobes in pneumonia.
Ryosuke Hata; Shingo Noguchi; Toshinori Kawanami; Kei Yamasaki; Kentaro Akata; Hiroaki Ikegami; Kazumasa Fukuda; Soichi Hirashima; Akihiko Miyawaki; Yoshihisa Fujino; Ryoichi Oya; Kazuhiro Yatera; Hiroshi Mukae
Journal of periodontology, Jan. 2020

A Case of Pulmonary Infectious Bulla Caused by Mycobacterium Avium.
Toshiki Morimoto; Keigo Uchimura; Kei Yamasaki; Hideki Kanda; Hideki Sakakibara; Kohei Hashimoto; Kei Nakamura; Saki Shigemi; Emiko Miyata; Yudai Yamaguchi; Hiroaki Ikegami; Takashi Tachiwada; Toshinori Kawanami; Fumihiro Tanaka; Kazuhiro Yatera
Journal of UOEH, 2020

Distribution and annual changes in the proportion of Streptococcus pneumoniae serotypes in Japanese adults with pneumococcal pneumonia from 2011 to 2017.
Shingo Noguchi; Kazuhiro Yatera; Kentaro Akata; Bin Chang; Hiroaki Ikegami; Ryosuke Hata; Kei Yamasaki; Toshinori Kawanami; Hiroshi Mukae
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy, Nov. 2019

[A Case of Drug-Induced Lung Injury Caused by Kamikihito].
Masahiro Tahara; Kei Yamasaki; Hiroaki Ikegami; Yoko Fukuda; Keigo Uchimura; Takashi Tachiwada; Shingo Noguchi; Toshinori Kawanami; Takashi Kido; Hiroshi Mukae; Kazuhiro Yatera
Journal of UOEH, 2019

[Evaluation of the Influence of the Experience and Training of EBUS-TBNA on Diagnostic Rate and Safety].
Midori Nakamura; Keigo Uchimura; Sachika Hara; Hidenori Ohira; Yosuke Chiba; Kazuki Nemoto; Yasuyuki Higashi; Masahiro Tahara; Hiroaki Ikegami; Yoko Hirano; Kazuki Sakagami; Kazuhiro Uyama; Konomi Sennari; Takashi Tachiwada; Hiroki Kawabata; Shingo Noguchi; Kei Yamasaki; Toshinori Kawanami; Kazuhiro Yatera
Journal of UOEH, 2019

Pneumomediastinum with Ascending Emphysema within the Spinal Canal.
Keishi Oda; Hiroaki Ikegami; Issei Ikushima; Kazuhiro Yatera
Internal medicine (Tokyo, Japan), 2017

EBUS-TBNAでは組織診断が得られなかったサルコイドーシス症例の検討
立和田 隆, 小田 桂士, 石本 裕士, 畑 亮輔, 笹原 陽介, 鳥井 亮, 池上 博昭, 伊藤 千与, 矢寺 和博, 迎 寛
気管支学, Jan. 2017, Reviewed, No invitation

Endobronchial Ultrasound-Guided Transbronchial Needle Aspiration(EBUS-TBNA)の経験やトレーニングが診断率および安全性に与える影響の検討
中村 碧, 内村 圭吾, 原 幸歌, 大平 秀典, 千葉 要祐, 根本 一樹, 東 泰幸, 田原 正浩, 池上 博昭, 平野 洋子, 阪上 和樹, 宇山 和宏, 先成 このみ, 立和田 隆, 川端 宏樹, 野口 真吾, 山崎 啓, 川波 敏則, 矢寺 和博
産業医科大学雑誌, Jun. 2019, Reviewed, No invitation

加味帰脾湯による薬剤性肺障害の1例
田原正浩, 山崎啓, 池上博昭, 福田洋子, 内村圭吾, 立和田隆, 野口真吾, 川波敏則, 城戸貴志, 迎寛, 矢寺和博
産業医科大学雑誌, Mar. 2019, Reviewed, Null

Coinfection With Multiple Nontuberculous Mycobacteria as a Possible Exacerbating Factor in Pulmonary Nontuberculous Mycobacteriosis: Clone Library Analysis Using the 16S Ribosomal RNA Gene.
Naito Keisuke, Noguchi Shingo, Yatera Kazuhiro, Kawanami Toshinori, Yamasaki Kei, Fukuda Kazumasa, Ikegami Hiroaki, Akata Kentaro, Kido Takashi, Sakamoto Noriho, Saito Mitsumasa, Mukae Hiroshi
Chest, Dec. 2020, Reviewed, Null

A human respiratory tract-associated bacterium with an extremely small genome.
Fukuda Kazumasa, Yamasaki Kei, Ogura Yoshitoshi, Kawanami Toshinori, Ikegami Hiroaki, Noguchi Shingo, Akata Kentarou, Katsura Keisuke, Yatera Kazuhiro, Mukae Hiroshi, Hayashi Tetsuya, Taniguchi Hatsumi
Communications biology, May 2021, Reviewed, Null

Sarcoidosis Associated with Enlarged Mediastinal Lymph Nodes with the Detection of Streptococcus gordonii and Cutibacterium acnes Using a Clone Library Method: A Case Report.
Akata Kentaro, Yamasaki Kei, Nemoto Kazuki, Ikegami Hiroaki, Kawaguchi Takako, Noguchi Shingo, Kawanami Toshinori, Fukuda Kazumasa, Mukae Hiroshi, Yatera Kazuhiro
Internal medicine (Tokyo, Japan), Jan. 2024, Reviewed, No invitation

A Case of Empyema with Rare Chest Findings.
Ikegami Hiroaki, Yamasaki Kei, Kawanami Toshinori, Yatera Kazuhiro
Internal medicine (Tokyo, Japan), Mar. 2020, Reviewed, Null
Lead

Pulmonary Mycobacterium parascrofulaceum Infection in a Patient with Chronic Progressive Pulmonary Aspergillosis: A Case Report and Literature Review.
Ikegami Hiroaki, Yamasaki Kei, Kawanami Toshinori, Fukuda Kazumasa, Akata Kentaro, Nakamura Midori, Ikushima Issei, Fukuda Yoko, Noguchi Shingo, Yatera Kazuhiro
Internal medicine (Tokyo, Japan), Dec. 2019, Reviewed, Null
Lead

Pneumomediastinum with Ascending Emphysema within the Spinal Canal.
Oda Keishi, Ikegami Hiroaki, Ikushima Issei, Yatera Kazuhiro
Internal medicine (Tokyo, Japan), May 2017, Reviewed, No invitation

A Case of Pulmonary Infectious Bulla Caused by Mycobacterium Avium.
Morimoto Toshiki, Uchimura Keigo, Yamasaki Kei, Kanda Hideki, Sakakibara Hideki, Hashimoto Kohei, Nakamura Kei, Shigemi Saki, Miyata Emiko, Yamaguchi Yudai, Ikegami Hiroaki, Tachiwada Takashi, Kawanami Toshinori, Tanaka Fumihiro, Yatera Kazuhiro
Journal of UOEH, Jun. 2020, Reviewed, Null

Clinical characteristics and antimicrobial susceptibility of non-vaccine serotype Streptococcus pneumoniae in adult Japanese patients with pneumonia.
Akata Kentaro, Yamasaki Kei, Noguchi Shingo, Chang Bin, Nemoto Kazuki, Ikegami Hiroaki, Kawanami Toshinori, Mukae Hiroshi, Yatera Kazuhiro
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy, Apr. 2024, Reviewed, Null

Reduced phagocytic activity of human alveolar macrophages infected with Mycobacterium avium complex.
Ikegami Hiroaki, Yamasaki Kei, Ogawa Midori, Nemoto Kazuki, Akata Kentaro, Noguchi Shingo, Fukuda Kazumasa, Kawanami Toshinori, Mukae Hiroshi, Yatera Kazuhiro
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy, Nov. 2022, Reviewed, No invitation
Lead

A fatal case of COVID-19-associated invasive pulmonary aspergillosis.
Iwanaga Yuto, Kawanami Toshinori, Yamasaki Kei, Sakakibara Hideki, Ikushima Issei, Ikegami Hiroaki, Tahara Masahiro, Akata Kentaro, Mukae Hiroshi, Yatera Kazuhiro
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy, Jul. 2021, Reviewed, Null

Distribution and annual changes in the proportion of Streptococcus pneumoniae serotypes in Japanese adults with pneumococcal pneumonia from 2011 to 2017.
Noguchi Shingo, Yatera Kazuhiro, Akata Kentaro, Chang Bin, Ikegami Hiroaki, Hata Ryosuke, Yamasaki Kei, Kawanami Toshinori, Mukae Hiroshi
Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy, Nov. 2019, Reviewed, No invitation

Poor oral hygiene is associated with the detection of obligate anaerobes in pneumonia.
Hata Ryosuke, Noguchi Shingo, Kawanami Toshinori, Yamasaki Kei, Akata Kentaro, Ikegami Hiroaki, Fukuda Kazumasa, Hirashima Soichi, Miyawaki Akihiko, Fujino Yoshihisa, Oya Ryoichi, Yatera Kazuhiro, Mukae Hiroshi
Journal of periodontology, Jan. 2020, Reviewed, No invitation

Surveillance and phylogenetic analysis of a pathogenic bacterium candidate in nasal discharge from children.
Fukuda Kazumasa, Haro Kaoru, Yamasaki Kei, Ikegami Hiroaki, Saito Mitsumasa
Microbiology spectrum, Jul. 2024, Reviewed, Null

Association between obligatory anaerobes and empyema caused by Streptococcus anginosus group bacteria.
Noguchi Shingo, Yatera Kazuhiro, Kawanami Toshinori, Ikegami Hiroaki, Hata Ryosuke, Yamasaki Kei, Fukuda Kazumasa, Mukae Hiroshi
Respiratory investigation, Sep. 2021, Reviewed, Null

Pseudoaneurysm after total arch replacement mimicking malignant lymphadenopathy.
Chiba Yosuke, Yamasaki Kei, Ikegami Hiroaki, Yatera Kazuhiro
Respirology case reports, Oct. 2020, Reviewed, No invitation

Refinement of microbiota analysis of specimens from patients with respiratory infections using next-generation sequencing.
Ikegami Hiroaki, Noguchi Shingo, Fukuda Kazumasa, Akata Kentaro, Yamasaki Kei, Kawanami Toshinori, Mukae Hiroshi, Yatera Kazuhiro
Scientific reports, Oct. 2021, Reviewed, Null
Lead

Epidemiologic evaluation of pleurisy diagnosed by surgical pleural biopsy using data from a nationwide administrative database.
Hara Kanako, Yamasaki Kei, Tahara Masahiro, Ikegami Hiroaki, Nishida Chinatsu, Muramutsu Keiji, Fujino Yoshihisa, Matsuda Shinya, Fushimi Kiyohide, Mukae Hiroshi, Yatera Kazuhiro
Thoracic cancer, Apr. 2022, Reviewed, No invitation