Sars-CoV-2 spike protein activates human endogenous retroviruses in blood cells: https://www.medrxiv.org/content/10.1101/2022.01.18.21266111v2 (academic), https://phys.org/news/2022-01-sars-cov-spike-protein-human-endogenous.html (popular) #rna #viruses #virology #covid #sars #sarscovid #covid19