(Bloomberg) -- Infectious disease expert Anthony Fauci asserts that vaccinating 70% to 85% of a population would enable its return to normalcy. At current rates, some rich countries will reach this milestone by August, but most poorer nations will remain below the threshold through 2024 or later, according to research by Bloomberg Economics. That doesn't mean richer countries will be out of the woods: Billions of people in poorer nations provide a large pool for the spread and mutation of the virus. The pandemic won't be fully eradicated until vaccines have been rolled out worldwide.
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