claim: evaluating the lack of clinical characteristics with neutralizing antibody levels in patients who have recovered from mild covid-19 in shanghai, china
evidence_1: discordance between serum neutralizing antibody titers and the recovery from covid-19.", "objective: to examine the association between clinical characteristics and levels of nabs in patients who recovered from covid-19.", "a longitudinal study of sars-cov-2-infected patients reveals a high correlation between neutralizing antibodies and covid-19 severity.")