We are attempting to perform a neutralizing antibody assay for SARS-CoV-2 with a pseudotyped lentiviral vector expressing the S protein in the envelop. We are experiencing difficulties generating titration curves because convalescent plasma samples generate agglutination in wells at low dilutions (1:10, 1:30 and 1: 100) and apparently, this blocks the entry of the pseudovirus into cells. Has anyone experienced this problem and been able to fix it?

More Augusto Rojas-Martinez's questions See All
Similar questions and discussions