Their virus symptoms were minor. Then they had long Covid.

Their virus symptoms were minor. Then they had long Covid.   As we live through our third year with Covid-19, we’re better equipped to manage it and treat it.   But there’s still a lot that we are learning about Covid-19, including how the disease can linger and completely overturn some people’s lives. It’s known as long Covid, and it’s not clear who develops it and why.   The CDC describes long Covid, or "post-Covid" conditions, as a wide range of new, returning or ongoing health problems four or more weeks after acute Covid-19 infection.   "Even people who did not have COVID-19 symptoms in the days or weeks after they were infected can have post-COVID conditions," according to the CDC. "These conditions can present as different types and combinations of health problems for different lengths of time."   These symptoms can include brain fog, fatigue and tremors.   Estimates of long Covid's incidence range from about 30% to more than half of people who have recovered from acute Covid-19 infection. Women and older adults appear to be more likely to have it than men and younger adults.   Even though the risk of long Covid-19 appears to increase with the severity of acute Covid-19 infection, almost a third of people who had mild symptoms when they were originally diagnosed may still have symptoms months later, according to some estimates. And emerging research suggests that a small portion of people who now live with long Covid had no Covid-19 symptoms at all when they were initially infected.