Delta variant: is Moderna vaccine really more effective than Pfizer?
2021-08-16T14:26:25.273Z
According to an American study conducted by the Mayo Clinic, the Moderna vaccine would work better than the Pfizer to stop the circulation of var
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2021-08-16T14:26:25.273Z
According to an American study conducted by the Mayo Clinic, the Moderna vaccine would work better than the Pfizer to stop the circulation of var
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