一项新研究表明,病毒感染可能在症状消失很久之后仍对免疫系统造成隐性损伤。研究人员发现,从急性感染中康复的小鼠出现了T细胞的持久性变化。A new study reveals that viral infections may leave behind hidden damage to the immune system long after symptoms disappear. Researchers found that mice recovering from an acute infection experienced lasting changes to t