Repetitive strains: SARS-CoV-2 variants

The Intelligence from The Economist

The coronavirus’s Delta variant accounts for ever more infections; we ask about mutational surprises yet to emerge, and what can be done about them. The ousting of Ethiopia’s army from the Tigray region might precipitate far wider conflict—within the country and far beyond its borders. And ahead of the Fourth of July, we find no good films about the holiday.

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