36% of unvaccinated but previously SARS-CoV-2 infected persons had no detectable antibodies one year after infection, according to a study published in BMCMedicine.
In this study, we are following up for a second time during the pandemic an adult population in Catalonia using multiplex antibody serology against SARS-CoV-2 in blood samples collected 6 months after the start of the vaccine rollout in Spain and incorporated questionnaire data and information from healthcare registries.
], the sub-region S2 , the nucleocapsid full length , and the specific NCt region produced at ISGlobal . In addition, 4 RBDs from different VoCs, produced at CRG , were used : Alpha , Beta , Gamma , and Delta .
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