US Covid-19 cases are rising again. What’s going on? - Vox.com

Since early January, when the United States hit a peak of 260,000 new cases every day on average, case numbers have been in more or less constant decline.

But as of July 18, the US is seeing more than 31,000 new cases daily on average, nearly triple the case levels of just a few weeks ago.

(One caveat: Testing rates have dropped significantly in the past few months, so we may not be detecting every new case. But that only makes the rise in confirmed cases more concerning.).