1. Nicholas Morrish Nicholas Morrish United States says:

    They didn't just use any HEK cells, they used HEK293T(cells infected with SV40) to facilitate the mutations in vitro; what happens when a non-archetypal SV40 infection(meaning the SV40 is capable of duplicating) in humans interacts with SARS-CoV-2 or other Coronavirus's in vivo?? Could the 'immortalization' of SARS-CoV2 by SV40 infected human cells in vivo result in the mutations that made it able to spread human to human??? It could explain the rapid onset of variants!!

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