A paper by Kei Sato’s group (Division of Systems Immunology) was published in The Lancet Infectious Diseases.

Virological characteristics of the SARS-CoV-2 KP.3, LB.1, and KP.2.3 variants

Kaku Y, Yo MS, Tolentino JE, Uriu K, Okumura K; Genotype to Phenotype Japan (G2P-Japan) Consortium; Ito J, Sato K.