Screening for <scp>SARS‐CoV</scp>‐2 antibodies in convalescent plasma in Brazil: Preliminary lessons from a voluntary convalescent donor program

Abstract

RT-PCR +ve cases are still detected in 36.2% within 28 to 48 days after recovery. High anti-nucleocapsid protein IgG levels may be used as a surrogate marker to neutralizing antibody.