Using revised FDA guidelines, the South Texas Blood and Tissue Center reports it is notifying about 200 donors for retesting after they initially had false positive results.

SAN ANTONIO – According to the South Texas Blood and Tissue Center, convalescent plasma is urgently needed in Bexar County to help critically ill patients diagnosed with COVID-19. “We’re shipping out 80 to 100 units of convalescent plasma a day to our local hospitals (with patients) that are critically ill,” Waltman said. John (left) and Deb (right) Almarez donate convalescent plasma on a regular basis since April. The couple has directly impacted up to 100 COVID-19 critically ill patients in San Antonio. According to the STBTC, they’re currently the only organization in South Texas that provides convalescent plasma directly to critically ill patients.