Undertaking a study of proteins found in the complement system, an important part of the immune system, of patients with long COVID, researchers have identified a blood protein ‘signature’ that may improve the diagnosis and lead to a treatment for the debilitating condition.
About 5% of all people infected with SARS-CoV-2 don’t recover from acute disease and develop debilitating long-term symptoms commonly known as ‘long COVID.’ While the caus…