BloodCould a blood test diagnose long Covid? Study suggests it might Posted on September 27, 2023September 27, 2023 by yun 27 Sep Blood samples showed hormonal, immune differences in people with long Covid People with long Covid symptoms had a cortisol deficit and dysfunctional T cells READ MORE: Long covid has left me full of aches and exhausted By Cassidy Morrison Senior Health Reporter For Dailymail.Com Published: 15:54 EDT, 27 September 2023 | Updated: 16:17 EDT, 27 September 2023 yun Art show, blood drive part of Pitt-Greensburg Blue & Gold activities University of St. Francis in Joliet hosting community blood drive