Takeuchi, Yuto http://orcid.org/0000-0002-6643-6208
Akashi, Yusaku http://orcid.org/0000-0001-9789-8301
Kato, Daisuke
Kuwahara, Miwa
Muramatsu, Shino
Ueda, Atsuo
Notake, Shigeyuki
Nakamura, Koji
Ishikawa, Hiroichi
Suzuki, Hiromichi
Article History
Received: 21 March 2021
Accepted: 6 May 2021
First Online: 18 May 2021
Competing interests
: Denka Co., Ltd., provided fees for research expenses and the QuickNavi-COVID19 Ag kits without charge. H.S. received a lecture fee from Otsuka Pharmaceutical Co., Ltd., regarding this study. D.K., M.K. and S.M. are employees of Denka Co., Ltd., the developer of the QuickNavi-COVID19 Ag. All other authors declare no potential conflict of interest.