Diseases & Conditions

The latest on long COVID

What we know (and what we still don't know).

  • Reviewed by Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing
A row of wood blocks spells out long covid; a hand reaching down is in the middle of flipping down the ones that say long.

While the COVID pandemic has largely faded into the background, one aspect of the virus continues to linger: long COVID. Long COVID is defined as the continuation or development of new symptoms at least three months after the initial infection from SARS-CoV-2 (the virus that causes COVID) without any other explanation. Long COVID affects an estimated 6% to 11% of adults who have had COVID, according to the most recent statistics from the CDC, and scientists continue to learn more about how it affects people and its possible long-term effects. To help answer some of the more common questions about long COVID, we turned to Dr. Michael VanElzakker, a neuroscientist and long COVID researcher at Harvard-affiliated Massachusetts General Hospital.

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About the Author

photo of Matthew Solan

Matthew Solan, Executive Editor, Harvard Men's Health Watch

Matthew Solan is the executive editor of Harvard Men’s Health Watch. He previously served as executive editor for UCLA Health’s Healthy Years and as a contributor to Duke Medicine’s Health News and Weill Cornell Medical College’s … See Full Bio
View all posts by Matthew Solan

About the Reviewer

photo of Howard E. LeWine, MD

Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Howard LeWine is a practicing internist at Brigham and Women’s Hospital in Boston, Chief Medical Editor at Harvard Health Publishing, and editor in chief of Harvard Men’s Health Watch. See Full Bio
View all posts by Howard E. LeWine, MD

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