Scientists can now show key differences in the blood of those who recover from Covid — and those who don't.
Several differences in the blood of people with long Covid stood out from the other groups.
"It was one of the findings that most definitively separated the folks with long Covid from the people without long Covid," Putrino said. "There is no evidence that replacing cortisol in someone with long Covid would be a safe or effective thing to do," Sala said., such as the one that causes mononucleosis, Epstein-Barr, come alive again in long Covid patients. It's unclear, however, whether those old viruses are causing symptoms or flagging a problem within the immune system.
Joshua Roman practices the cello at his New York City home on Sunday. Long Covid left Roman with uncontrollable trembling, threatening his career.Dr. Clinton Wright, director of the National Institute of Neurological Disorders and Stroke's division of clinical research, said additional studies will be necessary to find other ways Covid may lead to long-term symptoms. One theory is that the virus is hiding in brain tissue or other organs.