Emergence of BS.1 and BS.1.1, highly mutated new SARS‐CoV‐2 Omicron variants. Issue 3 (3rd March 2023) - Takahashi, Kenichiro; Saito, Masumichi; Sekizuka, Tsuyoshi; Itokawa, Kentaro; Tanio, Michikazu; Yoshida‐Furihata, Hazuka; Nojiri, Naomi; Hamada, Yuichi; Yokota, Eiichi; Kuroda, Makoto; Saito, Tomoya