Scientists are still trying to figure out why some people get long COVID and why a small portion have lasting symptoms. Here's some of the latest evidence.
Women’s immune systems generally mount stronger reactions to viruses, bacteria, parasites and other germs, noted Sabra Klein, a Johns Hopkins professor who studies immunity.
"I don’t think we should ignore that," she said. Biology and behavior are probably both at play, Klein said. Watson started her virtual long haulers group that April. The others soon learned of that nickname and embraced it.Several studies suggest the ubiquitous Epstein-Barr virus could play a role in some cases of long COVID.
Not all long COVID patients have these markers. But it’s possible that Epstein-Barr is causing symptoms in those who do, although scientists say more study is needed. Could removing fat tissue treat or prevent some cases of long COVID? It’s a tantalizing question, but the research is preliminary, said Dr. Catherine Blish, a Stanford infectious diseases professor and a senior author of the study.
Most people who have lingering, recurrent or new symptoms after infection will recover after about three months. Among those with symptoms at three months, about 15% will continue to have symptoms for at least nine more months, according to a recent study in the Journal of the American Medical Association.
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