| Haber: |
5 undervaccinated clusters put entire US at risk
A new data analysis identifies clusters of unvaccinated people, most of them in the southern United States, that are vulnerable to surges in Covid-19 cases and could become breeding grounds for even more deadly Covid-19 variants. CNN's senior medical correspondent Elizabeth Cohen reports.
https://www.cnn.com/videos/health/2021/07/08/under-vaccinated-areas-us-coronavirus-newday-cohen-vpx.cnn
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