Preabsorption and binding assays indicated the existence of cross-reactive epitopes on SARS-CoV spike protein domain 2 (S2).Several candidate autoantigens have been identified.

• 竞争结合的实验分析指出SARS冠状病毒棘蛋白区域2 (S2) 确实有交互作用的抗原决定位存在，进一步的实验鑑定出数个自体抗原。