Scientists in China have been experimenting with a mutant coronavirus strain that has a 100% fatality rate in mice modified to have human-like immune systems.
The work has raised some fears about how the COVID-19 pandemic originated and the possibility of a lab leak.
But it's also possible the research could be useful in developing better treatments or prevention methods for COVID.
#COVID #China #pandemic
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Category : Challenges and Experiments
#chinese#scientists#experiment#100#fatal#mutant#covid#strain#|#newsnation#now
