An ancient coronavirus-like epidemic drove adaptation in East Asians from 25,000 to 5,000 years ago
https://www.biorxiv.org/content/10.1101/2020.11.16.385401v1.full
Commercial immunoglobulin products contain cross-reactive but not neutralizing antibodies against SARS-CoV-2
https://www.jacionline.org/article/S0091-6749%2820%2931765-6/fulltext