More than three years into the pandemic, the millions of people who have suffered from long COVID finally have scientific proof that their condition is real.

NBC News reports: "Scientists have found clear differences in the blood of people with long COVID — a key first step in the development of a test to diagnose the illness."

https://flip.it/bHHxq-

Here's the original study in Nature: https://www.nature.com/articles/s41586-023-06651-y

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