That is, people who have covid-19 for a very long time. Interesting, if sobering, article by Ed Yong in the Atlantic. Many of these people are less than 50 years old and have tested negative for covid-19, but pretty clearly have it, which suggests that the number of cases is underreported. Lots of neurological symptoms:
As many people reported “brain fogs” and concentration challenges as coughs or fevers. Some have experienced hallucinations, delirium, short-term memory loss, or strange vibrating sensations when they touch surfaces. Others are likely having problems with their sympathetic nervous system, which controls unconscious processes like heartbeats and breathing: They’ll be out of breath even when their oxygen level is normal, or experience what feel like heart attacks even though EKG readings and chest X-rays are clear. These symptoms wax, wane, and warp over time. “It really is a grab bag,” said Davis, who is a co-author of the Body Politic survey. “Every day you wake up and you might have a different symptom.”
https://www.theatlantic.com/health/a...months/612679/