"Promising Research Indicates Feasibility of Blood Test for Long Covid"

Scientists have discovered clear differences in the blood of people with long Covid, providing evidence that the condition is a biological illness. The findings offer hope for the development of a blood test to diagnose long Covid, as well as insights into the potential causes of the debilitating symptoms. The study revealed irregular activity in immune system cells and significantly lower levels of the hormone cortisol in long Covid patients. Dormant viruses, such as Epstein-Barr, were also found to reactivate in long Covid patients. Further research is needed to understand the role of these signals and potential reservoirs of the virus in the body. Long Covid affects 1 in 13 U.S. adults, and the findings bring hope to those seeking better management and treatment options for their symptoms.