Boston University Creates COVID Strain With 80% Mortality In Mice

Boston University Creates COVID Strain With 80% Mortality In Mice

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Researchers at Boston University have created a new strain of Covid-19 that has an 80% kill rate in humanized mice. In an effort to research what makes Omicron so transmissible, the researchers cobbled the Omicron spike protein to the original strain of Covid-19. The resulting virus was five times more infectious than Omicron. “The Omicron spike (S) protein, with an unusually large number of mutations, is considered the major driver of these phenotypes. We generated chimeric recombinant SARS-CoV-2 encoding the S gene of Omicron in the backbone of an ancestral SARS-CoV-2 isolate and compared this virus with the naturally circulating...
Source: https://www.newswars.com/boston-university-creates-covid-strain-with-80-mortality-in-mice/