Ultrasensitive and Specific Detection of Neutralization-Correlated Serum Antibodies Via Secondary Antibody−DNA Linker-Mediated Magnetic Bead−Based Proximity Extension Assay
Sensitive, accurate, and readily deployable detection of neutralizing antibody (NAb) titers is essential for evaluating vaccine efficacy and population-level immunity. Here, we report an Antibody-DNA Linker (AND Linker) comprising a fusion of Protein A/G, a G4S flexible peptide, and duck circovirus replication initia...