This article was updated Oct. 16, 2020 with new research about COVID and how it affects the body.

April 23, 2020 — We have underestimated and misunderstood COVID-19 since it first appeared.

And as we learn more, it’s clear that COVID-19 can be more than just a respiratory disease. It’s joined the ranks of other “great imitators” — diseases that can look like almost any condition.

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