By March, The US Counted 1,500 COVID-19 Cases. Scientists Say We’d Missed 100,000 More – ScienceAlert

This month, the US passed 5 million cases of coronavirus, and the domestic outbreak is already edging perilously close to 6 million. How did this unthinkable catastrophe get so far out of control?
The sad truth, scientists say, is we likely had no idea how widespread and pervasive COVID-19 infections already were in the early stages of the US outbreak, long before a national emergency was declared.
These hidden cases missed by broad failures in testing and surveillance could have meant that by…

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