ERVW-1 and viral infectious disease: Due to the importance of neutralizing antibodies in controlling viral infections, viruses have evolved elaborate and sophisticated strategies to disrupt humoral immune responses, including extensive glycosylation of spike and envelope proteins to shield them from nAbs, escape mutations that alter the surface of spike to prevent or reduce nAb binding, and—for some viruses such as HCV and HIV—direct cell‐to‐cell spread that limits viral exposure to nAbs (Bailey et al., 2004; Brimacombe et al., 2011; Law et al., 2016; Lazarevic et al., 2019).