Less than 10,000 diagnosed cases of Covid/day in US in past week - first time in since Feb/March 2020. This is few enough so every one of them can be rapidly interviewed, isolated, source sought, contacts warned. Necessary in order to prevent Delta-variant-driven surge.
Replying to @DrTomFrieden
necessary but not sufficient!
11:06 AM - 23 Jun 2021
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