WASHINGTON — About 10% of people appear to suffer long COVID after an omicron infection, a lower estimate than earlier in the pandemic, according to a study of nearly 10,000 Americans that aims to help unravel the mysterious condition.
Early findings from the National Institutes of Health’s study highlight a dozen symptoms that most distinguish long COVID, the catchall term for the sometimes debilitating health problems that can last for months or years after even a mild case of COVID-19.
Millions worldwide have had long COVID, with dozens of widely varying symptoms including fatigue and…