A new study found long COVID was more common and severe in study participants who were infected before the 2021 Omicron variant, unvaccinated or reinfected.
WASHINGTON (AP) About 10 percent of people appear to suffer long COVID after an omicron infection, a lower estimate than earlier in the pandemic, according
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.