Imprinted SARS-CoV-2 humoral immunity induces convergent Omicron RBD evolutionA nasal spray prevented 80% of Covid infections; ~300,000 people in China have received SA55, a broad spectrum monoclonal antibody#SA55#Monoclonal Antibodies#Nasal Sprays#prophylactics·nature.com·Jan 3, 2025Imprinted SARS-CoV-2 humoral immunity induces convergent Omicron RBD evolution
