In early October 1984, plaintiff Virgil T. Howell was admitted to defendant Deaconess Medical Center for elective knee surgery. Following the surgery, plaintiff's surgeon ordered two units of packed red blood cells be administered to plaintiff. The blood, provided by defendant Spokane & Inland Empire Blood Bank (SIEBB), was transfused into plaintiff on October 8, 1984. The blood had been donated to the SIEBB during the fall of 1984 by volunteer donor John Doe X. One of these units of blood is alleged to have contained the Human Immuno Deficiency