Y Furusawa, M Kiso, S Iida,
R Uraki, Y Hirata, M Imai… - …, 2023 - thelancet.com
Summary Background The SARS-CoV-2 delta (B. 1.617. 2 lineage) variant was first
identified at the end of 2020 and possessed two unique amino acid substitutions in its spike …