Screening for SARS-CoV-2 antibodies in convalescent plasma in Brazil: Preliminary lessons from a voluntary convalescent donor program.
Silvano WendelJose Mauro KutnerRafael MachadoRita Fontão-WendelCarolina Bonet BubRoberta FachiniAna YokoyamaGabriela CandelariaAraci SakashitaRuth AchkarNelson HamerschlakPatricia ScuracchioMarcelo AmaralMirian Dal BenDanielle AraujoCamila SoaresAnamaria CamargoEsper KallásEdison DurigonLuiz Fernando ReisLuiz Vicente RizzoPublished in: Transfusion (2020)
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.