Coronavirus patients George Gilbert, 85 visits his wife Domneva Gilbert 84, in a different area, both part of the TACTIC-R trial, at Addenbrooke's hospital in Cambridge, England, Thursday, May 21, 2020. The new trial known as TACTIC-R is testing whether existing drugs will help prevent the body's immune system from overreacting, which scientists hope could prevent organ failure and death in COVID-19 patients. (AP Photo/Kirsty Wigglesworth, pool), APTOPIX