claim: sars-cov-2-specific antibody profiles distinguish patients with moderate from severe covid-19.
evidence_1: \"sars-cov-2 antibody levels and types differ by disease severity, study finds\".", "to explore the potential relationship between virus-specific humoral responses and covid-19 immunopathology, we measured serum antibody classes and subclasses to the receptor-binding domain of the sars-cov-2 spike protein and the nucleoprotein in a cohort of hospitalized covid-19 patients with moderate to severe disease.", "sars-cov-2 antibody levels and types differ by disease severity, study finds.")