Jennifer Hu – Journal: Degradative Effect of Nattokinase on Spike Protein of SARS-CoV-2Authors: Takashi Tanikawa 1,*,†, Yuka Kiba 2,†, James Yu 3, Kate Hsu 3, Shinder Chen 3, Ayako Ishii 4, Takami Yokogawa 2, Ryuichiro Suzuki 5, Yutaka Inoue 1, Masashi Kitamura 2,*Date of Publication: 24 Aug 2022