Derek Lowe has now covered it: https://blogs.sciencemag.org/pipeline/archives/2020/08/13/nanobodies-against-the-coronavirus-something-new https://blogs.sciencem

Derek Lowe has now covered it: https://blogs.sciencemag.org/pipeline/archives/2020/08/13/nanobodies-against-the-coronavirus-something-new https://blogs.sciencemag.org/pipeline/archives/2020/08/13/na... Single-domain antibodies have been around for a while: https://en.wikipedia.org/wiki/Single-domain_antibody https://en.wikipedia.org/wiki/Single-domain_antibody