Study challenges the hypothesis of genetic recombination in SARS-CoV-2's evolution, suggesting its ancestral virus already possessed human-infecting traits, based on analyses of over 100 viral genomes.
Will the US s COVID-19 vaccination campaign be undermined by novel SARS-CoV-2 variants of concern? news-medical.net - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from news-medical.net Daily Mail and Mail on Sunday newspapers.