These parts of the US could become 'breeding grounds' for potentially more Covid-19 variants, expert says  CNN View Full coverage on Google News

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Out of the Covid-19 pandemic, two Americans are emerging: One protected by vaccines and the other still vulnerable to infection — and experts say progress made across the entire US is being threatened by low-vaccinated regions.Out of the Covid-19 pandemic, two Americans are emerging: One protected by vaccines and the other still vulnerable to infection — and experts say progress made across the entire US is being threatened by low-vaccinated regions.

These parts of the US could become ‘breeding grounds’ for more COVID variants | WTOP