Kobayashi, Yusuke, Takeshi Arashiro, Miyako Otsuka, Yuuki Tsuchihashi, Takuri Takahashi, Yuzo Arima, Yura K. Ko, et al. “Replacement of SARS-CoV-2 Strains With Variants Carrying N501Y and L452R Mutations in Japan: An Epidemiological Surveillance Assessment”. Translated by Tomoko Morita-Ishihara. Western Pacific Surveillance and Response 13, no. 3 (September 16, 2022). Accessed May 30, 2026. https://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/943.