An Insider poll of more than 1,000 Americans found that 33% of respondents think they might have had the coronavirus.
Of those who said they believed they had it, just 4.6% said they had been tested and diagnosed with COVID-19.
Some evidence suggests the coronavirus may have been spreading in the US by late December, but most people who fell ill earlier in the winter probably had a different virus.
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A third of Americans...
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