Anti-SARS-CoV-2 RBD Antibody (dilutions start from 1 μg/ml) can bind to Immobilized SARS-CoV-2 (BA.2/Omicron) RBD, His tag(S0A2003); SARS-CoV-2 (BA.2.12.1/Omicron) RBD, His tag(S0A2015); SARS-CoV-2 (BA.4&BA.5/Omicron) RBD, His tag(S0A2004); SARS-CoV-