This is not a clinical trial though, merely a mechanistic study. The types of assays they have done typically take years to get right with just a handful of sam

This is not a clinical trial though, merely a mechanistic study. The types of assays they have done typically take years to get right with just a handful of samples so it's actually quite impressive. Importantly this is a T cell study not exactly an antibody assay study (t cell responses are a prerequisite for antibody responses).