label: SARS-CoV-2 (COVID-19) spike protein receptor binding domain (RBD) neutralizing antibody &#x7C; Serum or Plasma &#x7C; Microbiology
label_lc: sars-cov-2 (covid-19) spike protein receptor binding domain (rbd) neutralizing antibody &#x7c; serum or plasma &#x7c; microbiology