Year Item Type Full Text

2024

Factors associated with SARS-CoV-2 infection and effectiveness of COVID-19 vaccines in Japan and the Philippines. (2024) Arashiro, T

2023

National seroepidemiological study of COVID-19 after the initial rollout of vaccines: Before and at the peak of the Omicron-dominant period in Japan. (2023) Arashiro, Takeshi; Arai, Satoru; Kinoshita, Ryo; Otani, Kanako; Miyamoto, Sho; Yoneoka, Daisuke; Kamigaki, Taro; Takahashi, Hiromizu; Hibino, Hiromi; Okuyama, Mai; Hayashi, Ai; Kikuchi, Fuka; Morino, Saeko; Takanashi, Sayaka; Wakita, Takaji; Tanaka-Taya, Keiko; Suzuki, Tadaki; Suzuki, Motoi

Letter to the editor: Importance of considering high-risk behaviours in COVID-19 vaccine effectiveness estimates with observational studies. (2023) Arashiro, Takeshi; Arima, Yuzo; Kuramochi, Jin; Muraoka, Hirokazu; Sato, Akihiro; Chubachi, Kumi; Oba, Kunihiro; Yanai, Atsushi; Arioka, Hiroko; Uehara, Yuki; Ihara, Genei; Kato, Yasuyuki; Yanagisawa, Naoki; Nagura, Yoshito; Yanai, Hideki; Ueda, Akihiro; Numata, Akira; Kato, Hideaki; Oka, Hideaki; Nishida, Yusuke; Ooki, Takao; Nidaira, Yuki; Stucky, Ashley; Suzuki, Tadaki; Smith, Chris; Hibberd, Martin; Ariyoshi, Koya; Suzuki, Motoi

Effectiveness of BA.1- and BA.4/BA. 5-Containing Bivalent COVID-19 mRNA Vaccines Against Symptomatic SARS-CoV-2 Infection During the BA.5-Dominant Period in Japan. (2023) Arashiro, Takeshi; Arima, Yuzo; Kuramochi, Jin; Muraoka, Hirokazu; Sato, Akihiro; Chubachi, Kumi; Yanai, Atsushi; Arioka, Hiroko; Uehara, Yuki; Ihara, Genei; Kato, Yasuyuki; Yanagisawa, Naoki; Ueda, Akihiro; Kato, Hideaki; Oka, Hideaki; Nishida, Yusuke; Nidaira, Yuki; Asami, Takahiro; Jinta, Torahiko; Nakamura, Akira; Oba, Kunihiro; Taniyama, Daisuke; Yamamoto, Kei; Tanaka, Katsushi; Ueshima, Kankuro; Fuwa, Tetsuji; Stucky, Ashley; Suzuki, Tadaki; Smith, Chris; Hibberd, Martin; Ariyoshi, Koya; Suzuki, Motoi

COVID-19 vaccine effectiveness against severe COVID-19 requiring oxygen therapy, invasive mechanical ventilation, and death in Japan: A multicenter case-control study (MOTIVATE study). (2023) Arashiro, Takeshi; Miwa, Maki; Nakagawa, Hidenori; Takamatsu, Junpei; Oba, Kunihiro; Fujimi, Satoshi; Kikuchi, Hitoshi; Iwasawa, Takamasa; Kanbe, Fumiko; Oyama, Keisuke; Kanai, Masayuki; Ogata, Yoshitaka; Asakura, Takanori; Asami, Takahiro; Mizuno, Keiko; Sugita, Manabu; Jinta, Torahiko; Nishida, Yusuke; Kato, Hideaki; Atagi, Kazuaki; Higaki, Taiki; Nakano, Yoshio; Tsutsumi, Takeya; Doi, Kent; Okugawa, Shu; Ueda, Akihiro; Nakamura, Akira; Yoshida, Toru; Shimada-Sammori, Kaoru; Shimizu, Keiki; Fujita, Yasuo; Okochi, Yasumi; Tochitani, Kentaro; Nakanishi, Asuka; Rinka, Hiroshi; Taniyama, Daisuke; Yamaguchi, Asase; Uchikura, Toshio; Matsunaga, Maiko; Aono, Hiromi; Hamaguchi, Masanari; Motoda, Kentaro; Nakayama, Sohei; Yamamoto, Kei; Oka, Hideaki; Tanaka, Katsushi; Inoue, Takeshi; Kobayashi, Mieko; Fujitani, Shigeki; Tsukahara, Maki; Takeda, Saki; Stucky, Ashley; Suzuki, Tadaki; Smith, Chris; Hibberd, Martin; Ariyoshi, Koya; Fujino, Yuji; Arima, Yuzo; Takeda, Shinhiro; Hashimoto, Satoru; Suzuki, Motoi

Epidemiologic Trends and Distributions of Imported Infectious Diseases Among Travelers to Japan Before and During the COVID-19 Pandemic, 2016 to 2021: A Descriptive Study. (2023) Kasamatsu, Ayu; Kanou, Kazuhiko; Fukusumi, Munehisa; Arima, Yuzo; Omori, Shun; Nakamura, Haruna; Sato, Tetsuro; Serizawa, Yusuke; Takeda, Asuka; Fujikura, Hiroyuki; Ikenoue, Chiaki; Nishiki, Shingo; Fujiya, Yoshihiro; Arashiro, Takeshi; Takahashi, Takuri; Shimada, Tomoe; Suzuki, Motoi; Sunagawa, Tomimasa

2022

Coronavirus Disease 19 (COVID-19) Vaccine Effectiveness Against Symptomatic Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Infection During Delta-Dominant and Omicron-Dominant Periods in Japan: A Multicenter Prospective Case-control Study (Factors Associated with SARS-CoV-2 Infection and the Effectiveness of COVID-19 Vaccines Study). (2022) Arashiro, Takeshi; Arima, Yuzo; Muraoka, Hirokazu; Sato, Akihiro; Oba, Kunihiro; Uehara, Yuki; Arioka, Hiroko; Yanai, Hideki; Kuramochi, Jin; Ihara, Genei; Chubachi, Kumi; Yanagisawa, Naoki; Nagura, Yoshito; Kato, Yasuyuki; Ueda, Akihiro; Numata, Akira; Kato, Hideaki; Ishii, Koji; Ooki, Takao; Oka, Hideaki; Nishida, Yusuke; Stucky, Ashley; Smith, Chris; Hibberd, Martin; Ariyoshi, Koya; Suzuki, Motoi

Social and Behavioral Factors Associated with Lack of Intent to Receive COVID-19 Vaccine, Japan. (2022) Arashiro, Takeshi; Arima, Yuzo; Stucky, Ashley; Smith, Chris; Hibberd, Martin; Ariyoshi, Koya; Suzuki, Motoi

Impact of the Coming-of-Age Day and ceremony on the risk of SARS-CoV-2 transmission in Japan: A natural-experimental study based on national surveillance data. (2022) Ko, Yura K; Kinoshita, Ryo; Yamauchi, Masato; Otani, Kanako; Kamigaki, Taro; Kasuya, Kazuki; Yoneoka, Daisuke; Arima, Yuzo; Kobayashi, Yusuke; Arashiro, Takeshi; Otsuka, Miyako; Shimbashi, Reiko; Suzuki, Motoi